NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
214 reportsClear category filterMileage unknown · May 8, 2025
Power TrainUnknown Or Other
I experienced two failures associated with other model years. The first was the right side A-pillar trim. It pulled free on the highway. I noticed it fly off and was able to recover the majority of it. It smashed on impact and there is a large piece missing. The remaining piece is available for inspection upon request. The A-pil…
Read full complaint
I experienced two failures associated with other model years. The first was the right side A-pillar trim. It pulled free on the highway. I noticed it fly off and was able to recover the majority of it. It smashed on impact and there is a large piece missing. The remaining piece is available for inspection upon request. The A-pillar exterior trim flew off on a one-lane section of divided highway, there would have been no place for anyone to go if it flew back and there was a car behind me. This problem is a known issue I found out about on this (NHTSA) website. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No, it flew off on the highway and has not been reported yet. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No warning at all that this was going to break loose. I also have an issue with the PTU. I was driving home from the airport and at a a stoplight, I noticed a ticking noise when I stopped at the exit of the parking lot. I noticed it again closer to home, after a fifty mile drive. When I stopped on the off ramp from the highway, I noticed smoke coming from under/behind my explorer. It smelled like antifreeze, but when I arrived home, and checked under the vehicle, I found black residue on the PTU and what looked like leaks from the axle seals that were not there for the last five months I've owned the vehicle. The vehicle smoked heavily when I stopped on the exit ramp, and when I went to accelerate into the traffic round-about, the vehicle lagged before moving, with an audible clunk and a lurch when it finally moved. Any reasonably hard acceleration produces a noise and will usually lag before moving. It may make a ticking noise when at idle cold, but is more pronounced the hotter the drivetrain gets. I had an OBD II scan done with no codes produced.
NHTSA ODI #11659710
168,000 miles · Apr 9, 2025
Power Train
The contact owns a 2016 Ford Explorer. The contact stated that while attempting to reverse, the accelerator pedal was depressed; however, the vehicle hesitated while responding. The contact stated that after several attempts to depress the accelerator pedal, the vehicle responded as intended. The contact stated that a dealer was…
Read full complaint
The contact owns a 2016 Ford Explorer. The contact stated that while attempting to reverse, the accelerator pedal was depressed; however, the vehicle hesitated while responding. The contact stated that after several attempts to depress the accelerator pedal, the vehicle responded as intended. The contact stated that a dealer was not contacted. The vehicle was not taken to be diagnosed or repaired. The manufacturer was notified of the failure but offered no assistance. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The contact related the failure to NHTSA Campaign Number: 20V692000 (POWER TRAIN); however, the VIN was not included in the recall. The approximate failure mileage was 168,000.
NHTSA ODI #11653751
Mileage unknown · Apr 8, 2025
Power Train
Transfer case replacement. Open recall on 2016 4x2 ford explorera for faulty transfer case but not recalled on 4x4 models. This is BS as the transfer case used for both models are the exact same. Should be covered under already open recall for transfer case.
NHTSA ODI #11653503
Mileage unknown · Mar 30, 2025
Power TrainCrash
I have already filed a complaint about the transmission issues of my vehicle a few months ago. Ford will not take credit and help me so we had to keep driving it. Hard shifting, slipping, losing reverse, losing power and jerking into gear. Now not only has it nearly killed us twice when we went to pull into traffic, it has jerke…
Read full complaint
I have already filed a complaint about the transmission issues of my vehicle a few months ago. Ford will not take credit and help me so we had to keep driving it. Hard shifting, slipping, losing reverse, losing power and jerking into gear. Now not only has it nearly killed us twice when we went to pull into traffic, it has jerked into gear and locked up throwing the car into a guardrail and causing an accident while my fiancée was driving it. I reported it was unsafe and no one did anything, now I have a wreck vehicle, fighting with insurance about the safety of it and it’s sitting at a body shop. We are all afraid to drive it. It nearly killed my family and no one cared to help us. Plus we have no vehicle to drive now. Thank you FORD for nearly killing my family and making us feel unimportant in every way possible. Plus NHTSA did nothing when I filed my first complaint!
NHTSA ODI #11651547
Mileage unknown · Mar 21, 2025
EnginePower TrainVehicle Speed Control
My vehicles wrench sign would turn on do a little jerk then I would lose power to my car. Showed malfunction to power train. Took it to mechanic said there was a Crack in the valve gasket and they fixed that and changed spark plugs. A month later car did the same thing. Has done it a total for 4 times very scary when on a high…
Read full complaint
My vehicles wrench sign would turn on do a little jerk then I would lose power to my car. Showed malfunction to power train. Took it to mechanic said there was a Crack in the valve gasket and they fixed that and changed spark plugs. A month later car did the same thing. Has done it a total for 4 times very scary when on a high way and it does it and I have to pull over with traffic coming. Took it to another mechanic and he couldn't figure it out either because there are no codes but said he seem something similar and I needed to change all my coils. So I did that. Thousands of dollars later and no one can still figure out the problem. I don't know if it's some safety issue with the engine or transmission. But 3 certified mechanics can not figure out why my car continues to lose power.
NHTSA ODI #11649640
Mileage unknown · Mar 11, 2025
Power TrainUnknown Or Other
The second time my water pump has gone out in this vehicle. Causing over heating of the car and unrepairable wiring. Ford needs to get it right for us 2016 Ford Explorer owners. They [XXX] when it came to this vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11647699
57,770 miles · Mar 5, 2025
Power Train
The contact owns a 2016 Ford Explorer. The contact stated that while driving at an undisclosed speed, the contact heard a loud sound coming from the engine compartment. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed that the lower transmission and bolts had failed and needed t…
Read full complaint
The contact owns a 2016 Ford Explorer. The contact stated that while driving at an undisclosed speed, the contact heard a loud sound coming from the engine compartment. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed that the lower transmission and bolts had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for further assistance. The failure mileage was approximately 57,770.
NHTSA ODI #11646572
102,000 miles · Mar 5, 2025
Engine And Engine CoolingPower Train
The contact owns a 2016 Ford Explorer. The contact stated that while driving at various speeds, the engine overheated with the temperature gauge indicating that the engine was hot(H). The vehicle was taken to an independent mechanic where the water pump was replaced. The contact stated that several months later while in reverse(…
Read full complaint
The contact owns a 2016 Ford Explorer. The contact stated that while driving at various speeds, the engine overheated with the temperature gauge indicating that the engine was hot(H). The vehicle was taken to an independent mechanic where the water pump was replaced. The contact stated that several months later while in reverse(R), the vehicle failed to accelerate while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was towed to the dealer for a diagnostic test and remained with the dealer for months. The contact was informed that the vehicle had failed to accelerate while in drive(D) or reverse(R). The dealer later diagnosed the vehicle with transmission failure and the contact was provided an estimate for the repair. The manufacturer was notified of the failure and the contact was provided a case number. The vehicle was towed to an independent mechanic where it remained unrepaired. The failure mileage was approximately 102,000.
NHTSA ODI #11646464
Mileage unknown · Feb 25, 2025
Power TrainUnknown Or OtherCrash
Ptu burnt out less than 53k miles. Molding on passenger side broke off while driving 60mph struck another vehicle causing to other vehicle to leave road. Thank God no one was injured. This thing could have killed a motorcycle driver. Checked online and there are thousands of reports of same molding breaking off while driving.for…
Read full complaint
Ptu burnt out less than 53k miles. Molding on passenger side broke off while driving 60mph struck another vehicle causing to other vehicle to leave road. Thank God no one was injured. This thing could have killed a motorcycle driver. Checked online and there are thousands of reports of same molding breaking off while driving.ford tn# does not recognize and disconnects call.
NHTSA ODI #11644808
108,000 miles · Feb 18, 2025
Power Train
The contact owns a 2016 Ford Explorer. The contact stated while driving 10 MPH, the message to service the vehicle was displayed. The contact pulled over and turned off the vehicle, and waited for several minutes before restarting the vehicle and the message was no longer displayed. The contact stated that while depressing accel…
Read full complaint
The contact owns a 2016 Ford Explorer. The contact stated while driving 10 MPH, the message to service the vehicle was displayed. The contact pulled over and turned off the vehicle, and waited for several minutes before restarting the vehicle and the message was no longer displayed. The contact stated that while depressing accelerator pedal, the vehicle failed to respond as needed. A dealer was contacted. The vehicle was taken to an independent mechanic where it was inspected to see if there were any leaks coming from the transmission. The contact called the Bob Johnson Auto Group to schedule an appointment for a diagnostic test. The vehicle was not repaired. The manufacturer was notified of the failure and opened a case. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The approximate failure mileage was 108,000.
NHTSA ODI #11643355
Official recalls
14Jul 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.
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.
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.
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.
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.
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.
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.
Nov 10, 2020
Ford Motor Company (Ford) is recalling certain 2014-2016 Explorer, 2014-2015 Taurus and 2014 Edge vehicles equipped with 2.0L or 2.3L engines and front wheel drive. The support bracket for the front drive axle halfshaft may fail.
Consequence & remedy
Consequence: The failed bracket could result in a loss of park function which can cause unintended vehicle movement, and loss of motive power while driving which increases the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the link shaft bracket, free of charge. Parts are not currently available. Owners received an interim notification detailing safety risk December 8, 2020. A second letter will be mailed when parts become available in January 2021. The recall began February 2, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S63.
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.
Nov 29, 2017
Ford Motor Company (Ford) is recalling certain 2016 F-150 and Explorer vehicles. Loose power seat adjuster pivot bolts may cause the front seat cushions to detach and not properly restrain the seat occupant in the event of a crash.
Consequence & remedy
Consequence: In the event of a crash, a seat occupant that is not properly restrained has an increased risk of injury.
Remedy: Ford will notify owners, and dealers will inspect the tightness of the power seat track upper pivot link bolt, either applying threadlocker or replacing the lift link and hardware, free of charge. Interim letters are expected to go out January 15, 2018. Owners will receive a second notice when the remedy becomes available. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 17S40.
Jun 28, 2016
Ford Motor Company (Ford) is recalling certain model year 2016 Ford Explorer and F-150 vehicles equipped with a manual recline driver's seat. The seat back frame may have insufficient welds which may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202, "Head Restraints" and 207, "Seating Systems."
Consequence & remedy
Consequence: The seat back may not adequately restrain the occupant during a crash, increasing the 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 begin on August 18, 2016. Owners may contact Ford at 1-800-392-3673. Ford's number for this recall is 16C11.
Mar 31, 2016
Ford Motor Company (Ford) is recalling certain model year 2015-2016 Lincoln MKC vehicles manufactured November 25, 2013, to January 25, 2016, and 2016 Ford Explorer vehicles manufactured October 20, 2014, to January 28, 2016. The affected vehicles are equipped with 2.3L GTDI engines and engine block heaters. These engine block heaters have elements that may overheat while plugged in.
Consequence & remedy
Consequence: Overheating of the engine block increase the risk of a fire.
Remedy: Ford will notify owners, and dealers will replace the engine block heater, free of charge. Dealers will also inspect and replace the electrical cord, as necessary. The recall began on May 18, 2016. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S14. Note: Owners should not use the engine block heater until the vehicle has been remedied.
Sep 28, 2015
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Lincoln MKS, and 2016 Ford Explorer vehicles manufactured on July 24, 2015. During vehicle production, the fuel tank attachment bolts may not have been properly tightened. As a result, the fuel tank straps may fracture and the fuel tank could separate from the vehicle.
Consequence & remedy
Consequence: If the fuel tank separates from the vehicle, a fuel leak may occur, increasing the risk of a fire.
Remedy: Ford will notify owners, and dealers will tighten the fuel tank attachment bolts, as necessary, free of charge. The recall began on October 19, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15S26.
Jul 24, 2015
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Ford Flex, and Lincoln MKS vehicles manufactured May 4, 2015, to May 23, 2015, Lincoln MKT vehicles manufactured May 4, 2015, to May 21, 2015, and 2015-2016 Ford Explorer vehicles manufactured May 4, 2015, to May 23, 2015. The affected vehicles have a parking brake that may not fully engage when applied. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: If the parking brake does not fully engage and the transmission is left in a gear other than 'Park' while on a slope, the vehicle may roll away, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will test the operation of the parking brake system, and if necessary, replace the parking brake control assembly, free of charge. The recall began on September 4, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C07.
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
2PE23001 · 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
Illustration