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2017 Ford Explorer

Owner reports · Recalls · Investigations

More warning signs than most Explorer years

Owner complaints for the 2017 Ford Explorer are substantially higher than the model-year median of 609.

About this comparison →

When problems were reported

Mileage at the reported incident

849 reports with mileage · 841 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Structure. Review the 655 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 237 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 123 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

34 crash reports11 fire reports36 injury reports

Suspension complaints

57 reports
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Mileage unknown · Dec 4, 2025
Suspension

Cars rear end sways all over the place almost spun out on highway. I did some research and saw numerous recalls on the toe link in the rear of vehicle and have a good feeling its faulty again. I see it was replaced numerous times do to recall. Was wondering if there's like a warranty on recall work done

NHTSA ODI #11703125

45,000 miles · Aug 4, 2025
SteeringSuspension

The contact owns a 2017 Ford Explorer. The contact stated while accelerating from a complete stop from a traffic light, the vehicle made an abnormally loud popping sound. The contact exited and inspected the vehicle but could not determine the cause of the failure. The contact stated that upon attempting to resume driving, the s…

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The contact owns a 2017 Ford Explorer. The contact stated while accelerating from a complete stop from a traffic light, the vehicle made an abnormally loud popping sound. The contact exited and inspected the vehicle but could not determine the cause of the failure. The contact stated that upon attempting to resume driving, the steering wheel was uncontrollable, the suspension seemed to have failed, and the vehicle was sliding. The message "Terrain Management System Fault" was displayed. The vehicle was taken back to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 45,000.

NHTSA ODI #11678163

Mileage unknown · Jul 18, 2025
Power TrainSuspension

Delayed in transmission in gauging when going down hills especially going up them and causing vibration slowing down while vehicle moving.This is Ford Explorer XLT model 2.3 motor type 6 Speed automatic VIN:[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11674662

Mileage unknown · Mar 7, 2025
Suspension

AFTER REAR TOE LINK REPLACEMENT DUE TO SAFETY RECALL, THE CAMBER CAUSES THE WEAR ON THE OUTSIDE OF THE REAR TIRES TO INCREASE DRASTICALLY. EVEN AFTER SEVERAL ALIGNMENTS THE CAMBER CAN NOT BE ADJUSTED SO THE WEAR CONTINUES.

NHTSA ODI #11647058

Mileage unknown · Dec 15, 2024
Power TrainSteeringSuspension

The transmission stops switching gears after going 70 mph on the highway no acceleration was possible Just stopped working. I had my kids with me I had a tractor trailer behind me and in front of me and beside me on a very busy highway going 70 mph and the transmission just stopped working no gas was it was just redlining when …

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The transmission stops switching gears after going 70 mph on the highway no acceleration was possible Just stopped working. I had my kids with me I had a tractor trailer behind me and in front of me and beside me on a very busy highway going 70 mph and the transmission just stopped working no gas was it was just redlining when it was supposed to be accelerating no gears were reached I had to throw it in park throw it back into sports mode they're back into drive they're back into sports mode they're back in the drive before it kicked in and would go all while in the middle of a busy highway and not able to get off the road and declining in speed. The manufacturer or Ford did purchase the vehicle from me and made me roll over my negative equity from that car into a new car was my only option or paying 10 grand to get it fixed. Nothing no lights were displayed no lights came on at all no warning signs nothing Just happened. When I took it in to get it looked at the mechanic immediately told me that I need to trade the car in and that I shouldn't have this vehicle it's transmission has been having multiple issues over four times in one year it was in the shop for transmission issues they told me nothing was wrong and they drove my car 200 mi they gave it back to me not even two weeks later this happened no lights and nothing was pulling on the codes The mechanic Harper from Malloy Ford is the one that told me that I should need to trade it in he contacted the Ford company they offered $2,000 to help with the cost to get the car fixed but it wasn't going to fix the problem from happening again and it was traumatizing to have to go through that with my kids I didn't want to put my kids back in that vehicle because we literally could have died. PLEASE REACH OUT WITH ANY ADDITIONAL QUESTIONS with my phone or email .. THE CAR HAS HAD TRANSMISSION ISSUES SINCE I BOUGHT IT.THE DEALERSHIP REFUSED TO TAKE THE CAR BACK AFTER I PURCHASED IT TO PUT ME IN SOMETHING ELSE

NHTSA ODI #11630775

96,000 miles · Nov 25, 2024
Suspension

The contact owns a 2017 Ford Explorer. The contact stated while driving at an undisclosed speed, the vehicle became difficult to control. The contact then noticed that the tire wear was uneven. There was no warning light illuminated. The contact was able to restart the vehicle. The contact received notification of NHTSA Campaign…

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The contact owns a 2017 Ford Explorer. The contact stated while driving at an undisclosed speed, the vehicle became difficult to control. The contact then noticed that the tire wear was uneven. There was no warning light illuminated. The contact was able to restart the vehicle. The contact received notification of NHTSA Campaign Number: 21V537000 (Suspension). The vehicle was taken to an independent mechanic where it was diagnosed that the front and rear alignment had failed and needed to be performed again. The vehicle received the front alignment, but the rear alignment was not performed. The mechanic referred the contact to the dealer for additional assistance. The dealer was contacted but the vehicle was not diagnosed or repaired. The contact was provided an estimate for the rear alignment. The manufacturer was made aware of the failure. The failure mileage was approximately 96,000.

NHTSA ODI #11627261

Mileage unknown · Nov 2, 2024
Suspension

Brought vehicle in for a recalled issue concerning the rear toe. After the repair, had accelerated tire wear in a month. Replaced the tires 3x in 2 years and the issue is still there. Currently tires are needed again for 4th time in 2 years.

NHTSA ODI #11623258

92,500 miles · Oct 31, 2024
Suspension

The contact owns a 2017 Ford Explorer. The contact stated while driving at an undisclosed speed, the driver's side rear toe link fractured. The contact stated that the rear end of the vehicle swerved to the left. The contact stated that it was difficult to control the vehicle. The vehicle was driven to the shoulder of the roadwa…

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The contact owns a 2017 Ford Explorer. The contact stated while driving at an undisclosed speed, the driver's side rear toe link fractured. The contact stated that the rear end of the vehicle swerved to the left. The contact stated that it was difficult to control the vehicle. The vehicle was driven to the shoulder of the roadway. The contact exited the vehicle. The contact stated upon inspecting the vehicle, the contact noticed that the driver's side rear suspension was on the ground underneath the vehicle. The vehicle was towed to the dealer, where it was diagnosed with a fractured driver's side rear toe link. The contact was informed that the driver's side rear toe link needed to be replaced. The vehicle was not repaired. In addition, the contact was informed that the ABS and the wheel bearing needed to be replaced prior to the recall repair being performed. The contact had received notification NHTSA Campaign Number: 21V537000 (Suspension); however, the contact was advised that the ABS and the wheel bearing needed to be replaced prior to the recall repair being performed. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 92,500.

NHTSA ODI #11622988

113,000 miles · Aug 27, 2024
Suspension

The contact owns a 2011 Ford Explorer. The contact received notification of NHTSA Campaign Number: 20V675000 (Suspension). The contact stated that while his wife was driving 45 MPH, the driver lost control of the vehicle and ended up nearby a ditch. The contact stated that while his wife was driving straight, the vehicle veered …

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The contact owns a 2011 Ford Explorer. The contact received notification of NHTSA Campaign Number: 20V675000 (Suspension). The contact stated that while his wife was driving 45 MPH, the driver lost control of the vehicle and ended up nearby a ditch. The contact stated that while his wife was driving straight, the vehicle veered off independently. There were no injuries during the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 113,000.

NHTSA ODI #11611120

85,000 miles · Aug 6, 2024
Suspension

The contact owns a 2017 Ford Explorer. The contact stated while driving 35 MPH, the vehicle ran over a pothole and the contact attempted to turn and the tires slid. The vehicle was serviced under NHTSA Campaign Numbers: 21V537000 (Suspension), but the failure persisted. No warning light was illuminated. The vehicle was not driva…

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The contact owns a 2017 Ford Explorer. The contact stated while driving 35 MPH, the vehicle ran over a pothole and the contact attempted to turn and the tires slid. The vehicle was serviced under NHTSA Campaign Numbers: 21V537000 (Suspension), but the failure persisted. No warning light was illuminated. The vehicle was not drivable and was towed to a tire shop to get the tires replaced. The vehicle was repaired; however, the failure occurred which over time caused the tires to wear out and need to be replaced. Due to the failure consistently occurring, the contact replaced the tires on the vehicle nine times since the vehicle was first purchased the vehicle at the end of 2022. The manufacturer was notified of the failure and informed the contact that the vehicle had a slotted tire adjustment. The failure mileage was approximately 85,000.

NHTSA ODI #11606762

Official recalls

13

26V448000 · Structure:body

Jul 14, 2026

Ford Motor Company (Ford) is recalling certain 2016-2019 Explorer vehicles. The roof rail covers may come loose and detach from the vehicle.

Consequence & remedy

Consequence: A detached roof rail cover can create a road hazard, increasing the risk of a crash.

Remedy: Dealers will inspect the roof rail covers and as necessary, repair or replace the push-pins, rail clips, or roof rail covers, free of charge. Interim letters, notifying owners of the safety risk, were mailed August 28, 2026. Additional letters will be sent once the remedy is available, anticipated in January 2027. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 26S54. This recall expands previous NHTSA recall number 21V316. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on July 16, 2026.

26V101000 · Suspension:rear

Feb 20, 2026

Ford Motor Company (Ford) is recalling certain 2017-2019 Explorer vehicles. The rear suspension toe links may fracture.

Consequence & remedy

Consequence: A rear toe link fracture can result in a loss of steering control, increasing the risk of a crash.

Remedy: Dealers will replace the toe links, free of charge. Owner notification letters were mailed on March 16, 2026. Owners may contact Ford Customer Service at 1-866-436-7332. Ford's number for this recall is 26S08. This recall is an expansion of previous NHTSA recall number 21V537. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning February 25, 2026.

25V685000 · Equipment:electrical:engine Block Heater

Oct 10, 2025

Ford Motor Company (Ford) is recalling certain 2016-2019 Lincoln MKC, 2016-2023 Explorer, 2019-2020 Fusion, 2019-2024 Ranger, 2020-2022 Lincoln Corsair, Escape, 2021-2024 Bronco, Bronco Sport, and 2022-2024 Maverick vehicles. The engine block heater may crack and develop a coolant leak, causing it to short circuit when the block heater is plugged in.

Consequence & remedy

Consequence: An electrical short circuit can increase the risk of a fire.

Remedy: Owners are advised not to plug in their block heater until the vehicle is remedied. Dealers will replace the block heater, free of charge. Owners will also have a alternative option to replace engine block heater element with a threaded blanking plug, and remove the block heater electrical cord. Interim letters, notifying owners of the safety risk, were mailed December 3, 2025. Additional letters will be sent once the final remedy is available, anticipated September 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25SA4. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on October 15, 2025.

25V347000 · Structure:body

May 23, 2025

Ford Motor Company (Ford) is recalling certain 2016-2017 Explorer vehicles. The driver and front passenger B-Pillar door trim may detach while driving.

Consequence & remedy

Consequence: Door trim that detaches while driving can create a road hazard, increasing the risk of a crash.

Remedy: Dealers will repair the B-pillar trim, free of charge. Interim letters, notifying owners of the safety risk, were mailed June 5, 2025. A second notice will be sent once the final remedy is available, anticipated November 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S53.

24V031000 · Structure:body:roof And Pillars

Jan 19, 2024

Ford Motor Company (Ford) is recalling certain 2011-2019 Explorer vehicles. The A-pillar trim retention clips may not be properly engaged, allowing the trim to detach.

Consequence & remedy

Consequence: A detached trim piece can fall off the vehicle, becoming a road hazard and increasing the risk of a crash.

Remedy: Dealers will inspect and replace the A-pillar trim as necessary, free of charge. This will be a phased campaign, with the remedy becoming available in different phases based on model years. Owner notification letters were mailed between July 18, 2024 and December 16, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 24S02.

21V537000 · Suspension:rear

Jul 15, 2021

Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or ever registered, in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin, and the District of Columbia. Exposure to road salt can cause the cross-axis ball joint to corrode and seize, resulting in a fracture of the outboard section of the rear suspension toe link.

Consequence & remedy

Consequence: A rear toe-link fracture can result in a loss of steering control, increasing the risk of a crash.

Remedy: Dealers will inspect and replace as necessary, the cross-axis ball joint (CABJ) knuckle, and replace the rear suspension toe links, free of charge. This recall is an expansion of previous NHTSA recall numbers 16V-245, 19V-435, and 20V-675. Certain vehicles previously repaired will need to return for the new remedy. An interim notification letter notifying owners of the safety risk were mailed on September 10, 2021. Owner notification letters were mailed on March 16, 2022. Owners may contact Ford's customer service at 1-866-436-7332. Ford's number for this recall is 21S32.

21V316000 · Structure:body

May 5, 2021

Ford Motor Company (Ford) is recalling certain 2016-2019 Explorer vehicles. The retention pins could loosen and allow the roof rail covers to detach from the vehicle.

Consequence & remedy

Consequence: A detached roof rail cover can create a road hazard, increasing the risk of a crash.

Remedy: Dealers will install push-pins and replace any damaged rail clips and roof rail covers, as necessary, free of charge. The interim owner notification letter was mailed on June 22, 2021. Owner notification letters (remedy available) were mailed on October 1, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21S22.

20V675000 · Suspension:rear

Mar 12, 2021

Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or currently registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin that were previously repaired under a prior recall numbers 16V-245 or 19V-435. The outboard section of a rear suspension toe link may fracture.

Consequence & remedy

Consequence: A rear toe link fracture can result in a loss of steering control, increasing the risk of a crash.

Remedy: Ford will notify owners, and dealers will inspect the cross-axis ball joint (CABJ) knuckle attached to the rear suspension toe link and replace it as necessary, free of charge. The recall began November 27, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S62.

19V651000 · Seats

Sep 11, 2019

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer vehicles equipped with power front seats. The seat frames may have sharp edges.

Consequence & remedy

Consequence: Occupants my contact the sharp edges when reaching between the power front seat and center console, increasing their risk of injury.

Remedy: Ford will notify owners, and dealers will install protective tape on the exposed inside edge and tab of the power seat frames, free of charge. The recall began November 8, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S29.

19V435000 · Suspension:rear

Jun 10, 2019

Ford Motor Company (Ford) is recalling certain 2011-2017 Explorer vehicles. The rear suspension toe links may fracture due to stress on the rear suspension.

Consequence & remedy

Consequence: A fractured rear toe link will cause a sudden change in vehicle handling and increase the risk of a crash.

Remedy: Ford will notify owners, and dealers will replace the rear suspension toe links, and inspect both rear toe link ball joints, replacing the rear wheel knuckle(s), if necessary, free of charge. The recall began June 26, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S17.

17V530000 · Steering

Aug 28, 2017

Ford Motor Company (Ford) is recalling certain 2017 Explorer, Taurus and Police Interceptor Utility and Sedan vehicles. The steering gear heat shield fasteners may corrode, allowing the heat shield to detach.

Consequence & remedy

Consequence: If the heat shield detaches, the steering gear may overheat, increasing the steering effort required by the driver, especially at lower speeds, and increasing the risk of a crash.

Remedy: Ford will notify owners, and dealers to inspect and replace the heat shield fasteners as needed, free of charge. The recall began on September 13, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 17S23.

17V332000 · Seats; Seats:front Assembly:recliner

May 22, 2017

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer, F-150, F-250, F-350, F-450 and F-550 vehicles equipped with a manual driver's seat back recliner mechanism. In the event of a crash, the seat back frame may not restrain the occupant due to having inadequate welds. As such, these vehicles may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202a, "Head Restraints" and 207, "Seating Systems."

Consequence & remedy

Consequence: If the occupant is not adequately restrained in the event of a crash, they have an increased risk of injury.

Remedy: Ford will notify owners, and dealers will inspect and, if necessary, replace the seat back frame, free of charge. The recall began on June 7, 2017. Owners may contact Ford at 1-866-436-7332. Ford's number for this recall is 17C08.

Additional source detail variants (2)

Seats:front Assembly:recliner

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer, F-150, F-250, F-350, F-450 and F-550 vehicles equipped with a manual driver's seat back recliner mechanism. In the event of a crash, the seat back frame may not restrain the occupant due to having inadequate welds. As such, these vehicles may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202a, "Head Restraints" and 207, "Seating Systems."

Consequence: If the occupant is not adequately restrained in the event of a crash, they have an increased risk of injury.

Remedy: Ford will notify owners, and dealers will inspect and, if necessary, replace the seat back frame, free of charge. The recall began on June 7, 2017. Owners may contact Ford at 1-866-436-7332. Ford's number for this recall is 17C08.

Seats

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer, F-150, F-250, F-350, F-450 and F-550 vehicles equipped with a manual driver's seat back recliner mechanism. In the event of a crash, the seat back frame may not restrain the occupant due to having inadequate welds. As such, these vehicles may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202a, "Head Restraints" and 207, "Seating Systems."

Consequence: If the occupant is not adequately restrained in the event of a crash, they have an increased risk of injury.

Remedy: Ford will notify owners, and dealers will inspect and, if necessary, replace the seat back frame, free of charge. The recall began on June 7, 2017. Owners may contact Ford at 1-866-436-7332. Ford's number for this recall is 17C08.

16V925000 · Engine And Engine Cooling:engine:gasoline:turbo/supercharger

Dec 22, 2016

Ford Motor Company (Ford) is recalling certain model year 2016 Ford Taurus, 2016-2017 Ford Flex, Lincoln MKT, 2017 Ford Explorer and Ford Explorer Police Interceptor Utility vehicles equipped with 3.5L GTDI engines. Improperly brazed turbocharger oil supply tubes may leak oil on engine components.

Consequence & remedy

Consequence: An oil leak, in the presence of an ignition source, increases the risk of a fire.

Remedy: Ford will notify owners, and dealers will inspect, and if necessary, replace the turbocharger oil supply tubes, free of charge. The recall began on January 31, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S46.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

2

PE23001 · Windshield Trim Molding Item Detachment

Opened Jan 27, 2023 · Closed Feb 8, 2024

Status: closed (inferred from source dates) · Structure:body:roof And Pillars

On January 27, 2023, the Office of Defects Investigation (ODI) opened PE23-001 to investigate allegations of A-pillar trim panel detachment on model year (MY) 2011-2019 Ford Explorer vehicles. At the time of opening, the office had received 164 Vehicle Owner Questionnaires (VOQs) reporting this failure. ODI has received 671 VOQs regarding this failure, including 1 alleged crash and 2 alleged injuries. Some consumers have reported that the failure occurred while they were driving at highway speeds, with the detached trim panel entering the path of travel of the vehicle behind them, requiring the driver of the following vehicle to take evasive action. It is noteworthy that motorists who experience this type of road hazard are less likely to accurately identify the subject vehicle the item detached from and report the event to the NHTSA. In its April 17, 2023 response to ODI’s information request, Ford provided 175 consumer complaints (including field reports) and 14,162 warranty claims related to A-pillar trim panel detachment. Ford relayed that the subject vehicles utilize a plastic A-pillar bracket, which is bolted to the vehicle structure during assembly. The A-pillar trim panel is attached to the bracket utilizing 7 plastic clips. Contributory factors which have been identified by Ford as leading to the subject defect include incomplete installation at the assembly plant, inadequate part stack up, damage to fasteners during installation, and failure to follow proper repair procedure during windshield replacements or other services. On January 19, 2024, Ford filed safety recall 24V-031 for MY 2011-2019 Ford Explorer vehicles to address the subject defect. In the Part 573 Safety Recall Report, Ford identified that a detached A-pillar trim panel can create a road hazard for other road users, increasing the risk of a crash. The recall remedy includes an inspection of the existing A-pillar trim panel and, if necessary, the replacement of the component. The remedy A-pillar trim panels will be installed with an additional adhesive for robustness and utilize an inspection procedure to ensure full engagement of all the retention clips during installation. In view of the recall action being taken by Ford, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

EA17002 · Exhaust Odor In Passenger Cab

Opened Jul 27, 2017 · Closed Jan 17, 2023

Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe; Structure:body

During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve

Additional source detail variants (2)

Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe

During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve

Structure:body

During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve

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