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2017 Jeep Patriot

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2017 Jeep Patriot do not stand out strongly from the model-year median of 188.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

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When problems were reported

Mileage at the reported incident

31 reports with mileage · 28 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.

  • Power Train. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

7 crash reports1 fire reports8 injury reports

Power Train complaints

15 reports
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Mileage unknown · Nov 6, 2024
EnginePower TrainVehicle Speed Control

Was driving on highway about 70 mph and check engine light, red lightning bolt symbol, and traction control lights all came on wasn't able to accelerate and vehicle wouldn't go above 30 mph. It's been in and out of dealerships since May and is still not fixed with no explanation why it's doing it . I have 1000 miles until my war…

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Was driving on highway about 70 mph and check engine light, red lightning bolt symbol, and traction control lights all came on wasn't able to accelerate and vehicle wouldn't go above 30 mph. It's been in and out of dealerships since May and is still not fixed with no explanation why it's doing it . I have 1000 miles until my warranty is up . Could anyone take a look at this !

NHTSA ODI #11623836

79,000 miles · Oct 27, 2023
Fuel System, GasolinePower Train

The contact owns a 2017 Jeep Patriot. The contact stated that while attempting to start the vehicle, several attempts were needed before the vehicle would start. The contact stated that while accelerating, the transmission was slipping. Additionally, while driving at various speeds, the vehicle lost motive power and stalled with…

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The contact owns a 2017 Jeep Patriot. The contact stated that while attempting to start the vehicle, several attempts were needed before the vehicle would start. The contact stated that while accelerating, the transmission was slipping. Additionally, while driving at various speeds, the vehicle lost motive power and stalled without warning. There was a warning light indicating that the vehicle needed to be serviced. The contact took the vehicle to a certified mechanic who diagnosed that the throttle body had failed due to an air intake failure. The contact was informed that the throttle body needed to be replaced. The vehicle had been repaired; however, the failure recurred and became persistent. The manufacturer was not made aware of the failure. The approximate failure mileage was 79,000.

NHTSA ODI #11552172

Mileage unknown · Jul 4, 2023
Power Train

When starting out from home the other day and several other occasions, the transmission has been jerking while shifting gears, its automatic and has around 43000 miles on it, have owned it for two years bought it from car dealer with extended warranty. Have not been able to get it checked yet but wil soon. The transmission has b…

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When starting out from home the other day and several other occasions, the transmission has been jerking while shifting gears, its automatic and has around 43000 miles on it, have owned it for two years bought it from car dealer with extended warranty. Have not been able to get it checked yet but wil soon. The transmission has been shifting weird for some time now, it really whines when climbing hills, or traveling on the highways. It shifts gears when going slightly uphill and the engine revs up to 3000 rpms until car levels off or starts downgrade before shifting back to overdrive. Also has leak from sunroof after it rains and it leaks down thru interior lights onto radio.

NHTSA ODI #11530313

Mileage unknown · Apr 24, 2023
Power Train

CVT Tansmission went out with only 120,000 miles resulting in a costly transmission replacement

NHTSA ODI #11518609

Mileage unknown · Jan 30, 2023
Power Train

There was suddenly a strange growling humming noise coming from the engine. The car only had 53,641 miles on it. It cost $2300 to replace 2 bearing imput shafts. We had the dealer fix it. When we called about the problem they knew what it was right away because it is a common problem. This is unacceptable. We now lost conf…

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There was suddenly a strange growling humming noise coming from the engine. The car only had 53,641 miles on it. It cost $2300 to replace 2 bearing imput shafts. We had the dealer fix it. When we called about the problem they knew what it was right away because it is a common problem. This is unacceptable. We now lost confidence in Jeep products and feel something should be done about it.

NHTSA ODI #11504432

Mileage unknown · Jun 21, 2022
Power Train

Throttle body defective part. Starting in 2020 noticed unable to accelerate and engine would stall. Throttle body has been replaced 5-6 times since. When traveling at times vehicle will stall and immediately slow down, this has nearly almost caused me two accidents, I was able to pull on shoulder quickly. Please note I have mo…

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Throttle body defective part. Starting in 2020 noticed unable to accelerate and engine would stall. Throttle body has been replaced 5-6 times since. When traveling at times vehicle will stall and immediately slow down, this has nearly almost caused me two accidents, I was able to pull on shoulder quickly. Please note I have more servicing invoices I can provide. This was done all under warranty

NHTSA ODI #11470224

Mileage unknown · Feb 9, 2022
Electrical SystemEnginePower Train

On 10/27/2020, I financed a Jeep Patriot with 43K miles from Quality Chevrolet. Exactly 6 days later 11/02/2020, while I was on the way home from work in the evening; three sensor lights came on causing the vehicle to jolt / jerk / accelerate and become unsafe to drive. There were cars behind me, I turned on the hazard lights an…

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On 10/27/2020, I financed a Jeep Patriot with 43K miles from Quality Chevrolet. Exactly 6 days later 11/02/2020, while I was on the way home from work in the evening; three sensor lights came on causing the vehicle to jolt / jerk / accelerate and become unsafe to drive. There were cars behind me, I turned on the hazard lights and my car went from 25 MPH to 2 MPH instantly. The lights were ABS, Traction and check engine. I immediately contacted the dealership since I had the Jeep for less than a week. I had to take the risk of driving the car in this condition for 6 miles on a highway back to the dealership, stopping every few minutes to shut off the Jeep and restart to try to reset the sensors, which seemed to work 2 minutes at a time. A drive that would normally take about 15 minutes took over an hour. My Jeep was being paid for weekly and still being serviced at the dealership- On 11/17/2020, I received a call from the dealership that they cleaned out the throttle body as recommended by Jeep and since that was the only sensor active at the time; they told me that no other lights were on so they were driving the Jeep to try to activate them. I was told by Quality Chevrolet that Jeep recommended to clean out the throttle and return to me, if the lights come back on, to go back to the dealer and replace the part. After weeks at Quality Chevrolet, my jeep was returned to me, however 5 days later on 12/07/2020 the same sensors came on in the middle of a highway when I was going about 55 MPH and it was raining I had to find a way to get my vehicle to safety and this caused a lot of anxiety as my kids were in the Jeep this time. I did not get into an accident by a miracle but now I was stranded on the highway. Til this day, Quality Chevrolet nor the 3 other places I have been to have been able to properly diagnose this problem that continues to happen without warning. My jeep will not go over 20 MPH, RPM stays on 2 and all sensors are active.

NHTSA ODI #11451294

34,000 miles · Mar 22, 2021
Power Train

DRIVING AT CITY SPEEDS, THE TRANSMISSION JERKS 2 TO 6 TIMES AT DIFFERENT SPEEDS, TEMPERATURE, WEATHER, TIME OF DAY. THIS ON A 2017 JEEP PATRIOT 2.4L. THIS HAS BEEN HAPPENING SINCE WE BOUGHT IT IN MARCH OF 2020.

NHTSA ODI #11404366

46,000 miles · Sep 23, 2020
Power Train

IT'S A STANDARD TRANSMISSION AND THE CLUTCH JUST WENT OUT. IT HAS LOW MILES ON IT AND IS USED TO GET TO WORK AND BACK, AROUND 10 MILES OR LESS ONE WAY. MECHANIC DIDN'T UNDERSTAND WHY IT WOULD GO OUT SO QUICKLY ON A VEHICLE WITH SUCH LITTLE MILEAGE ON IT. IT'S AROUND 46,000 MILES. IT WAS BEING DRIVEN WHEN THE CLUTCH JUST WOULDN'T…

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IT'S A STANDARD TRANSMISSION AND THE CLUTCH JUST WENT OUT. IT HAS LOW MILES ON IT AND IS USED TO GET TO WORK AND BACK, AROUND 10 MILES OR LESS ONE WAY. MECHANIC DIDN'T UNDERSTAND WHY IT WOULD GO OUT SO QUICKLY ON A VEHICLE WITH SUCH LITTLE MILEAGE ON IT. IT'S AROUND 46,000 MILES. IT WAS BEING DRIVEN WHEN THE CLUTCH JUST WOULDN'T GO INTO GEAR ANYMORE AND HAD TO BE TOWED.

NHTSA ODI #11360838

34,000 miles · Jun 24, 2020
Power TrainUnknown Or Other

TRANSMISSION OVERHEAT LIGHT TRIGGERS ONLY IN HEAT AT EXTENDED PERIODS OF HIGHWAY SPEED. HAS HAPPENED 5 TIMES. CAR LOOSES POWER AT HIGHWAY SPEEDS QUICKLY. MUST PULL OVER AND WAIT FOR IT TO COOL. DEALER SAID THEY COULDN'T GET IT TO SHOW UP SO THEY WOULDN'T DO ANYTHING ABOUT IT. *TR

NHTSA ODI #11330458

Official recalls

0

No recalls in this snapshot.

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

PE19014 · Active Head Rest Inadvertent Deployment

Opened Sep 9, 2019 · Closed Feb 25, 2026

Status: closed (inferred from source dates) · Seats; Seats:front Assembly:head Restraint

The Office of Defects Investigation (ODI) opened PE19014 on September 9, 2019, to investigate 128 consumer complaints alleging that the Active Head Rest (AHR) inadvertently deployed without the occurrence of a crash or other rear impact event in model year (MY) 2014 Jeep Grand Cherokee and Dodge Durango vehicles.When ODI opened the investigation, ODI was aware of thirteen alleged injuries.A small number of Early Warning Reports identified driver and/or passenger front seat AHR inadvertent deployments without a rear impact event.Reported safety consequences resulting from the AHR deployments include concussions, headaches, soft tissue injuries, disorientation, nausea, vomiting and/or loss of vehicle control as a result of being surprised and distracted by being struck in the head by the inadvertent AHR deployment. On September 24, 2019, ODI sent an Information Request (IR) letter to Fiat Chrysler Automobiles (FCA).ODI requested certain detailed information from FCA related to the following subject vehicles: MY 2010-2014 Dodge Avenger 200, MY 2010-2014 Dodge Calber, MY 2010-2014 Chrysler Sebring, MY 2013-2015 Ram Tradesman, MY 2012 Ram Van, MY 2010-2019 Dodge Grand Caravan, MY 2010-2016 Chrysler Town and Country, MY 2010-2017 Jeep Compass, MY 2011-2020 Dodge Durango, MY 2011-2020 Jeep Grand Cherokee, MY 2010-2019 Dodge Journey, MY 2010-2012 Jeep Liberty, MY 2010-2011 Jeep Nitro, and MY 2010-2011 Jeep Patriot vehicles.On December 2, 2019, ODI received a response from FCA that included vehicle production data, consumer complaints, field reports, warranty claims, manufacturer actions, production changes, and other data related to the alleged defect from the start of production (2010) through September 24, 2019.On January 27, 2020, ODI received an update to the December 2, 2019, IR response from FCA.On September 22, 2020, ODI requested additional subject vehicle AHR information from FCA.ODI received FCA's response on October 21, 2020.ODI subsequently received an update to FCA's October 21, 2020, response on February 16, 2021.During the investigation, ODI requested updates to certain IR questions on two occasions.FCA provided updates to question #2 on March 5, 2021, and questions #2 and #5 on May 26, 2023. FCA’s IR response data identified approximately 7.5 million subject vehicles (with approximately 15 million AHR assemblies).Due to the large number of vehicles and failure reports, ODI focused its analysis on the FCA vehicle model with the highest failure rate to represent the worst-case scenario.For this purpose, ODI focused on MY 2012-2015 Jeep Grand Cherokee vehicles for its analysis.This population includes 710,890 vehicles that FCA manufactured between August 19, 2011, and August 8, 2015.ODI identified 2,839 alleged AHR failures within this limited population.ODI identified 263 alleged injuries that were caused by AHR failures in MY 2012-2015 Grand Cherokees vehicles.Of these alleged injuries, ODI categorized them as eighty-two (82) soft tissue (neck/whiplash, bruise) injuries, four (4) concussions, fifty-nine (59) headaches, and one hundred eighteen (118) without a specific injury description.Although complainants have alleged injuries, ODI has been unable to obtain evidence to substantiate or validate any injuries where medical treatment was required.Consumer outreach was conducted by ODI, where sixty-three (63) FCA complainants with alleged injuries were contacted.Twelve of the sixty-three FCA consumers responded and were interviewed by ODI.ODI requested medical records, however, only one response was provided. Attorneys representing the responding complainant provided a synopsis that indicated they had experienced prior neck-related injuries dating to the mid-1990s.ODI also contacted one hundred (100) consumers who submitted Vehicle Owner Questionnaires (VOQ) in an attempt to validate alleged injuries. Despite the efforts of ODI, the office has been unsuccessful at obtaining substantive documentation/evidence supporting complaints that allege serious injuries (where pre-existing medical conditions did not already exist). In addition to the low severity of alleged injuries caused by AHR deployments, there have been eleven alleged crashes and two alleged lane departures within the entire subject vehicle population that has been in the field up to sixteen years (with over 8,500 AHR inadvertent deployments).ODI was not able to validate that the alleged crashes were the result of inadvertent head rest deployments, and the crashes were minor in nature. ODI has conducted a thorough investigation of the alleged safety defect and with up to sixteen years of exposure for some vehicles and over 8,500 inadvertent AHR deployments, no serious crashes or injuries could be validated in the sub-population of focus.The lack of serious injuries validated by ODI with such large period of field exposure is consistent with thework done by NHTSA’s Human Injury Research Division and the Biodynamic Research Corporation, which support that an inadvertent AHR deployment is not likely to cause serious injury.In addition to the low risk of injury, FCA released an extended warranty program that covers inadvertent AHR deployment for ten years / unlimited mileage from the vehicle's in-service date. PE19014 is closed with the FCA extended warranty program.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist, and the Agency reserves the right to take additional action if warranted by new circumstances. To review a complete closing summary, please the attached closing report. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Additional source detail variants (2)

Seats

The Office of Defects Investigation (ODI) opened PE19014 on September 9, 2019, to investigate 128 consumer complaints alleging that the Active Head Rest (AHR) inadvertently deployed without the occurrence of a crash or other rear impact event in model year (MY) 2014 Jeep Grand Cherokee and Dodge Durango vehicles.When ODI opened the investigation, ODI was aware of thirteen alleged injuries.A small number of Early Warning Reports identified driver and/or passenger front seat AHR inadvertent deployments without a rear impact event.Reported safety consequences resulting from the AHR deployments include concussions, headaches, soft tissue injuries, disorientation, nausea, vomiting and/or loss of vehicle control as a result of being surprised and distracted by being struck in the head by the inadvertent AHR deployment. On September 24, 2019, ODI sent an Information Request (IR) letter to Fiat Chrysler Automobiles (FCA).ODI requested certain detailed information from FCA related to the following subject vehicles: MY 2010-2014 Dodge Avenger 200, MY 2010-2014 Dodge Calber, MY 2010-2014 Chrysler Sebring, MY 2013-2015 Ram Tradesman, MY 2012 Ram Van, MY 2010-2019 Dodge Grand Caravan, MY 2010-2016 Chrysler Town and Country, MY 2010-2017 Jeep Compass, MY 2011-2020 Dodge Durango, MY 2011-2020 Jeep Grand Cherokee, MY 2010-2019 Dodge Journey, MY 2010-2012 Jeep Liberty, MY 2010-2011 Jeep Nitro, and MY 2010-2011 Jeep Patriot vehicles.On December 2, 2019, ODI received a response from FCA that included vehicle production data, consumer complaints, field reports, warranty claims, manufacturer actions, production changes, and other data related to the alleged defect from the start of production (2010) through September 24, 2019.On January 27, 2020, ODI received an update to the December 2, 2019, IR response from FCA.On September 22, 2020, ODI requested additional subject vehicle AHR information from FCA.ODI received FCA's response on October 21, 2020.ODI subsequently received an update to FCA's October 21, 2020, response on February 16, 2021.During the investigation, ODI requested updates to certain IR questions on two occasions.FCA provided updates to question #2 on March 5, 2021, and questions #2 and #5 on May 26, 2023. FCA’s IR response data identified approximately 7.5 million subject vehicles (with approximately 15 million AHR assemblies).Due to the large number of vehicles and failure reports, ODI focused its analysis on the FCA vehicle model with the highest failure rate to represent the worst-case scenario.For this purpose, ODI focused on MY 2012-2015 Jeep Grand Cherokee vehicles for its analysis.This population includes 710,890 vehicles that FCA manufactured between August 19, 2011, and August 8, 2015.ODI identified 2,839 alleged AHR failures within this limited population.ODI identified 263 alleged injuries that were caused by AHR failures in MY 2012-2015 Grand Cherokees vehicles.Of these alleged injuries, ODI categorized them as eighty-two (82) soft tissue (neck/whiplash, bruise) injuries, four (4) concussions, fifty-nine (59) headaches, and one hundred eighteen (118) without a specific injury description.Although complainants have alleged injuries, ODI has been unable to obtain evidence to substantiate or validate any injuries where medical treatment was required.Consumer outreach was conducted by ODI, where sixty-three (63) FCA complainants with alleged injuries were contacted.Twelve of the sixty-three FCA consumers responded and were interviewed by ODI.ODI requested medical records, however, only one response was provided. Attorneys representing the responding complainant provided a synopsis that indicated they had experienced prior neck-related injuries dating to the mid-1990s.ODI also contacted one hundred (100) consumers who submitted Vehicle Owner Questionnaires (VOQ) in an attempt to validate alleged injuries. Despite the efforts of ODI, the office has been unsuccessful at obtaining substantive documentation/evidence supporting complaints that allege serious injuries (where pre-existing medical conditions did not already exist). In addition to the low severity of alleged injuries caused by AHR deployments, there have been eleven alleged crashes and two alleged lane departures within the entire subject vehicle population that has been in the field up to sixteen years (with over 8,500 AHR inadvertent deployments).ODI was not able to validate that the alleged crashes were the result of inadvertent head rest deployments, and the crashes were minor in nature. ODI has conducted a thorough investigation of the alleged safety defect and with up to sixteen years of exposure for some vehicles and over 8,500 inadvertent AHR deployments, no serious crashes or injuries could be validated in the sub-population of focus.The lack of serious injuries validated by ODI with such large period of field exposure is consistent with thework done by NHTSA’s Human Injury Research Division and the Biodynamic Research Corporation, which support that an inadvertent AHR deployment is not likely to cause serious injury.In addition to the low risk of injury, FCA released an extended warranty program that covers inadvertent AHR deployment for ten years / unlimited mileage from the vehicle's in-service date. PE19014 is closed with the FCA extended warranty program.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist, and the Agency reserves the right to take additional action if warranted by new circumstances. To review a complete closing summary, please the attached closing report. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Seats:front Assembly:head Restraint

The Office of Defects Investigation (ODI) opened PE19014 on September 9, 2019, to investigate 128 consumer complaints alleging that the Active Head Rest (AHR) inadvertently deployed without the occurrence of a crash or other rear impact event in model year (MY) 2014 Jeep Grand Cherokee and Dodge Durango vehicles.When ODI opened the investigation, ODI was aware of thirteen alleged injuries.A small number of Early Warning Reports identified driver and/or passenger front seat AHR inadvertent deployments without a rear impact event.Reported safety consequences resulting from the AHR deployments include concussions, headaches, soft tissue injuries, disorientation, nausea, vomiting and/or loss of vehicle control as a result of being surprised and distracted by being struck in the head by the inadvertent AHR deployment. On September 24, 2019, ODI sent an Information Request (IR) letter to Fiat Chrysler Automobiles (FCA).ODI requested certain detailed information from FCA related to the following subject vehicles: MY 2010-2014 Dodge Avenger 200, MY 2010-2014 Dodge Calber, MY 2010-2014 Chrysler Sebring, MY 2013-2015 Ram Tradesman, MY 2012 Ram Van, MY 2010-2019 Dodge Grand Caravan, MY 2010-2016 Chrysler Town and Country, MY 2010-2017 Jeep Compass, MY 2011-2020 Dodge Durango, MY 2011-2020 Jeep Grand Cherokee, MY 2010-2019 Dodge Journey, MY 2010-2012 Jeep Liberty, MY 2010-2011 Jeep Nitro, and MY 2010-2011 Jeep Patriot vehicles.On December 2, 2019, ODI received a response from FCA that included vehicle production data, consumer complaints, field reports, warranty claims, manufacturer actions, production changes, and other data related to the alleged defect from the start of production (2010) through September 24, 2019.On January 27, 2020, ODI received an update to the December 2, 2019, IR response from FCA.On September 22, 2020, ODI requested additional subject vehicle AHR information from FCA.ODI received FCA's response on October 21, 2020.ODI subsequently received an update to FCA's October 21, 2020, response on February 16, 2021.During the investigation, ODI requested updates to certain IR questions on two occasions.FCA provided updates to question #2 on March 5, 2021, and questions #2 and #5 on May 26, 2023. FCA’s IR response data identified approximately 7.5 million subject vehicles (with approximately 15 million AHR assemblies).Due to the large number of vehicles and failure reports, ODI focused its analysis on the FCA vehicle model with the highest failure rate to represent the worst-case scenario.For this purpose, ODI focused on MY 2012-2015 Jeep Grand Cherokee vehicles for its analysis.This population includes 710,890 vehicles that FCA manufactured between August 19, 2011, and August 8, 2015.ODI identified 2,839 alleged AHR failures within this limited population.ODI identified 263 alleged injuries that were caused by AHR failures in MY 2012-2015 Grand Cherokees vehicles.Of these alleged injuries, ODI categorized them as eighty-two (82) soft tissue (neck/whiplash, bruise) injuries, four (4) concussions, fifty-nine (59) headaches, and one hundred eighteen (118) without a specific injury description.Although complainants have alleged injuries, ODI has been unable to obtain evidence to substantiate or validate any injuries where medical treatment was required.Consumer outreach was conducted by ODI, where sixty-three (63) FCA complainants with alleged injuries were contacted.Twelve of the sixty-three FCA consumers responded and were interviewed by ODI.ODI requested medical records, however, only one response was provided. Attorneys representing the responding complainant provided a synopsis that indicated they had experienced prior neck-related injuries dating to the mid-1990s.ODI also contacted one hundred (100) consumers who submitted Vehicle Owner Questionnaires (VOQ) in an attempt to validate alleged injuries. Despite the efforts of ODI, the office has been unsuccessful at obtaining substantive documentation/evidence supporting complaints that allege serious injuries (where pre-existing medical conditions did not already exist). In addition to the low severity of alleged injuries caused by AHR deployments, there have been eleven alleged crashes and two alleged lane departures within the entire subject vehicle population that has been in the field up to sixteen years (with over 8,500 AHR inadvertent deployments).ODI was not able to validate that the alleged crashes were the result of inadvertent head rest deployments, and the crashes were minor in nature. ODI has conducted a thorough investigation of the alleged safety defect and with up to sixteen years of exposure for some vehicles and over 8,500 inadvertent AHR deployments, no serious crashes or injuries could be validated in the sub-population of focus.The lack of serious injuries validated by ODI with such large period of field exposure is consistent with thework done by NHTSA’s Human Injury Research Division and the Biodynamic Research Corporation, which support that an inadvertent AHR deployment is not likely to cause serious injury.In addition to the low risk of injury, FCA released an extended warranty program that covers inadvertent AHR deployment for ten years / unlimited mileage from the vehicle's in-service date. PE19014 is closed with the FCA extended warranty program.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist, and the Agency reserves the right to take additional action if warranted by new circumstances. To review a complete closing summary, please the attached closing report. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

EA19001 · Electrical Overstress

Opened Apr 19, 2019 · Closed Sep 19, 2024

Status: closed (inferred from source dates) · Air Bags: Air Bag/restraint Control Module

The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect.  During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air bags and other restraint system devices in severe crash events. The subject vehicles may be equipped with an airbag control unit (ACU) for the supplemental restraint system (SRS) Electronic Control Unit (ECU) manufactured by ZF-TRW.  The ECU receives signals from crash sensors mounted in the vehicle and deploys the vehicle air bags and seat belt pretensioners in accordance with manufacturer design specifications.  The ECU in the subject vehicles contains a model DS84 application-specific integrated circuit (ASIC) which controls the communication of the crash sensor signal, firing commands (i.e., when to deploy the airbag(s) and/or pretensioners), and fault information (e.g., diagnostic trouble codes). In September 2016, FCA announced recall 16V-668 for certain model year (MY) 2010 to 2014 Chrysler, Dodge and Jeep products manufactured with the subject ZF-TRW ACU.  In this recall, FCA discussed an EOS condition that resulted in a failure of the subject DS84 ASIC, which caused air bag non-deployment.  FCA noted that the defect condition had only been observed in vehicles equipped with sensor harnessing routed across the front of the vehicle.  Other FCA vehicles that also used the subject ACU, but were not equipped with cross-car harnessing, had not experienced EOS failures, despite similar time in service. During the course of this investigation, ODI sent two separate Information Request (IR) letters to six vehicle manufactures (including FCA, Hyundai, Honda, Kia, Mitsubishi, and Toyota) and one IR letter to ZF-TRW.  These IR letters resulted in ODI receiving comprehensive data from these manufacturers and suppliers. Studies of this data found that the DS84 ASIC does not have sufficient protection against negative electrical transients or electrical overstress (“EOS”) that can be generated in certain severe crashes.  An electrical transient occurs when the electrical power supplied to a circuit changes momentarily over a short duration of time.   In these severe crash cases, the crash sensors and other powered wiring can be damaged and short circuited so as to create a negative electrical transient of sufficient intensity and duration (that are outside the vehicle manufacturer's specification) to damage the ASIC before the restraint device deployment signal is received by the SRS ECU.  This damaged signal can lead to incomplete or nondeployment of the air bags and/or pretensioners.  Airbag non-deployment and/or lack of pretensioner operation can increase the risk or severity of injury in a crash.A total of 8 fatalities and 14 injuries were associated with known EOS events. The common element in all investigated manufacturers vehicles is the SRS ECU containing a DS84 ASIC manufactured by ZF-TRW.  The risk associated with the ASIC is equally shared among all OEMS involved in the investigation.  The actual real-world risk can be mitigated by other factors which were assessed by ODI during this investigation. The first mitigating factor involves protections built into the ACU design which protect the DS84 ASIC from damage.  There are multiple strategies and levels of protection employed by different OEMs that provide effective EOS mitigation.  The two most common strategies at the ACU level are circuit protection diodes on the remote senor signal lines, and current limiting resistors that protect critical components. The second mitigating factor is found at the vehicle level and involves the location and routing of the wires leading from the crash sensors to the SRS ECU.  If the wires are well protected in a crash and are not routed with other power wires carrying large currents, the risk for an EOS event is significantly reduced or eliminated. These design specific factors combine to produce a spectrum of risk for the vehicles equipped with ACUs using the DS84 ASIC.  Given the many of years of field exposure, it is possible to divide the subject population into two groups; vehicles which have experienced EOS events, and vehicles which have not experienced EOS field events. Four of the six OEMs involved in this investigation have experienced EOS field events on at least one of their models equipped with a DS84 ASIC.  All vehicle models (including the Toyota models identified in the Failure Report Summary of the opening resume for this investigation) with field events have been recalled.  In an abundance of caution, ODI kept this investigation open five years to monitor field performance and did not identify any field events on vehicles not included in existing safety recalls. Given the spectrum of risk identified in this investigation and that all vehicles with a demonstrated unreasonable risk have been recalled, ODI is closing this investigation. ODI is closing this investigation with the following manufacturer safety recalls: 16V-668, 18E-043, 18V-137, 18V-363, and 20V-024.  With the recall actions taken by the subject vehicle and equipment manufacturers, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or model year vehicles outside of the recall scopes. The agency reserves the right to take further action if warranted by the circumstances.