NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
229 reportsClear category filterMileage unknown · May 26, 2013
Power Train
I WAS NOTIFIED BY MAIL IN DECEMBER THAT THERE WAS A RECALL ON MY TRUCK A 2010 DODGE RAM. THEY STATED THAT THE REAL AXLE PINION NUT(RECALL NUMBER M34)WAS INSTALLED WITHOUT AN ADHESIVE PAD. DODGE STATED THAT THE RESULT OF THIS COULD RESULT IN TOTAL SEIZURE OF THE REAR AXLE OR LOSS OF ACCELERATION AT ANY TIME. AFTER THE FIRST CALL …
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I WAS NOTIFIED BY MAIL IN DECEMBER THAT THERE WAS A RECALL ON MY TRUCK A 2010 DODGE RAM. THEY STATED THAT THE REAL AXLE PINION NUT(RECALL NUMBER M34)WAS INSTALLED WITHOUT AN ADHESIVE PAD. DODGE STATED THAT THE RESULT OF THIS COULD RESULT IN TOTAL SEIZURE OF THE REAR AXLE OR LOSS OF ACCELERATION AT ANY TIME. AFTER THE FIRST CALL THEY TOLD ME THE PARTS WOULD BE AVAILABLE AND I WOULD JUST HAVE TO WAIT. IT IS NOW MAY 26 AND THEY STILL DO NOT HAVE THE PARTS. I HAVE A NEW BORN BABY AND THEY SAID THERE IS NOTHING I CAN DO BUT DRIVE AROUND AND HOPE NOTHING HAPPENS TO ME AND MY FAMIL. I HAVE CALLED 10 TIMES. I WAS TO,D THE PARTS WOULD BE AVAILABLE IN JANUARY THEN MARCH THEN APRIL. STILL NO PARTS WHAT CAN I DO TO NOT HAVE TO WORRY ABOUT DRIVING MY UNSAFE TRUCK. PLEAS ASSIST ME [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10513588
51,000 miles · May 24, 2013
Power Train
TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THAT WHILE DRIVING 45 MPH, THERE WAS A LOUD NOISE THAT CAME FROM THE REAR OF THE VEHICLE. THE BRAKES SEIZED AND THE VEHICLE HESITATED TO STOP. THE VEHICLE WAS TAKEN TO THE DEALER, WHO STATED THAT THE REAR DRIVESHAFT AND DIFFERENTIAL HAD BECOME SEPARATED. THE VEHICLE …
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TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THAT WHILE DRIVING 45 MPH, THERE WAS A LOUD NOISE THAT CAME FROM THE REAR OF THE VEHICLE. THE BRAKES SEIZED AND THE VEHICLE HESITATED TO STOP. THE VEHICLE WAS TAKEN TO THE DEALER, WHO STATED THAT THE REAR DRIVESHAFT AND DIFFERENTIAL HAD BECOME SEPARATED. THE VEHICLE WAS REPAIRED. THE FAILURE WAS REPORTED TO THE MANUFACTURER. THE CONTACT REFERENCED NHTSA CAMPAIGN ID 13V038000 (POWER TRAIN: REAR AXLE PINION MAY LOOSEN AT DIFFERENTIAL), IN WHICH THE VIN WAS INCLUDED. THE FAILURE AND CURRENT MILEAGE WAS 51,000.
NHTSA ODI #10513417
Mileage unknown · May 14, 2013
Power Train
RCVD. SAFETY RECALL N08/NHTSA 13V-038 FROM CHRYSLER CORP. APPROX. 30 DAYS AGO ABOUT THE REAR AXLE PINION NUT ON MY 2010 RAM 1500 STATING THAT THE TRUCK WAS UNSAFE AND THAT THEY WERE CONCERNED ABOUT MY SAFETY. CALLED LOCAL DEALER TO SCHEDULE APPT. TO HAVE FIXED AND DEALER STATED THAT THE PART WAS UNAVAILABLE, WAITED ANOTHER WEEK …
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RCVD. SAFETY RECALL N08/NHTSA 13V-038 FROM CHRYSLER CORP. APPROX. 30 DAYS AGO ABOUT THE REAR AXLE PINION NUT ON MY 2010 RAM 1500 STATING THAT THE TRUCK WAS UNSAFE AND THAT THEY WERE CONCERNED ABOUT MY SAFETY. CALLED LOCAL DEALER TO SCHEDULE APPT. TO HAVE FIXED AND DEALER STATED THAT THE PART WAS UNAVAILABLE, WAITED ANOTHER WEEK AND CALLED THE CHRYSLER GROUP RECALL ASSISTANCE CENTER AND GOT THE SAME EXCUSE FROM THEM THAT THE PARTS WERE ON BACK ORDER. SOMETHING NEEDS TO BE DONE TO MOTIVATE THIS COMPANY TO TAKE CARE OF THEIR RESPONSIBILITIES IN A TIMELY MANNER, NOT EVERYONE CAN PARK THEIR VEHICLE AND WAIT FOR THIS TO BE RESOLVED WHENEVER CHRYSLER GETS AROUND TO IT. HAVE READ OTHER COMPLAINTS ON THIS WEBSITE ABOUT REAR AXLE LOCK-UP AND OTHER ACCIDENTS WITH THE DRIVE SHAFTS. HOPEFULLY THIS WILL BE FIXED BEFORE ANOTHER ACCIDENT OCCURS OR SOMEONE IS SERIOUSLY INJURED OR KILLED. *TR
NHTSA ODI #10511925
31,466 miles · May 14, 2013
Power Train
TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, HE HEARD A LOUD WHISTLING NOISE AND AS HE DECELERATED, THE REAR WHEELS SEIZED AND THE VEHICLE SKIDDED OFF THE ROADWAY. THE VEHICLE WAS TOWED TO A DEALER FOR DIAGNOSIS AND THE CONTACT WAS INFORMED THAT THE REAR AXLE PINION NUT BECAME LOOSE A…
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TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, HE HEARD A LOUD WHISTLING NOISE AND AS HE DECELERATED, THE REAR WHEELS SEIZED AND THE VEHICLE SKIDDED OFF THE ROADWAY. THE VEHICLE WAS TOWED TO A DEALER FOR DIAGNOSIS AND THE CONTACT WAS INFORMED THAT THE REAR AXLE PINION NUT BECAME LOOSE AND CAUSED THE AXLE TO SEIZE. AS A RESULT, THE ENTIRE SUSPENSION END OF THE VEHICLE WOULD NEED TO BE REPLACED. THE TECHNICIAN ALSO STATED THAT THE FAILURE WAS RELATED TO NHTSA CAMPAIGN NUMBER: 13V038000 (POWER TRAIN), IN WHICH THE CONTACT'S VEHICLE WAS INCLUDED. THE DEALER ADVISED HOWEVER THAT THE PARTS NEEDED TO COMPLETE THE RECALL SERVICE WERE NOT AVAILABLE AND THAT HE WOULD BE USING THE SAME DEFECTIVE PARTS WHEN REPAIRING THE VEHICLE. THE VEHICLE WAS REPAIRED. THE VIN WAS UNAVAILABLE. THE FAILURE AND CURRENT MILEAGE WAS 31,466.
NHTSA ODI #10511922
54,000 miles · May 6, 2013
Power Train
WHILE DRIVING 70MPH DOWN HWY HEARD A LOUD THUMP UNDER CAR, THEN A LOT OF BANGING UNDER TRUCK, REAR OF TRUCK JUMPED AND BOUNCED A LITTLE. THEN WHILE TRYING TO ACCELERATE AND GET OFF FREEWAY FROM THE FAST LANE HAD NO THROTTLE RESPONSE SO COST ACROSS FOUR LANES TO THE SHOULDER ONCE GOT TO SHOULDER I WENT TO HIT BREAKS BUT REAR E…
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WHILE DRIVING 70MPH DOWN HWY HEARD A LOUD THUMP UNDER CAR, THEN A LOT OF BANGING UNDER TRUCK, REAR OF TRUCK JUMPED AND BOUNCED A LITTLE. THEN WHILE TRYING TO ACCELERATE AND GET OFF FREEWAY FROM THE FAST LANE HAD NO THROTTLE RESPONSE SO COST ACROSS FOUR LANES TO THE SHOULDER ONCE GOT TO SHOULDER I WENT TO HIT BREAKS BUT REAR END LOCKED UP BEFORE I COULD AND TRUCK CAME TO A SCREECHING HALT. GOT OUT OF TRUCK AND DRIVE SHAFT WAS ON THE GROUND HANGING FROM TRANSMISSION, THE REAR END SPLINE SHAFT WAS STICKING OUT OF REAR END BUT BENT REALLY BAD. THE REAR END FLANGE AND U BOLT WAS COMPLETELY GONE ALONG WITH ABOUT A FOOT OF THE DRIVE SHAFT. THE TRANSMISSION NOW GRINDS WHEN SHIFTIN IN TO GEAR AND PARK . MY EXHAUST IS ALL SMASHED UP FROM DRIVE SHAFT WHIPPING AROUND THE CHROME TIPS OUT OF THE BACK BUMPER ARE DROPPED ABOUT 1 INCH AND PUSHED OUT FROM BUMPER 2 INCHES. TO ME LOOKS LIKE REAR END LOCKED UP AND RIPPED THE DRIVE SHAFT IN TWO. *TR
NHTSA ODI #10510775
22,000 miles · May 5, 2013
Power Train
WAS JUST NOTIFIED OF THE RECALL FOR THE REAR AXLE PINION NUT PROBLEM AND WHEN I CALLED CHRYSLER VIA THEIR TOLL FREE NUMBER, I WAS TOLD THAT THE RECALL NOTICE WAS MAILED ON 4/1/2013 EVEN THOUGH I DID NOT RECEIVE IT FOR 30 DAYS. WAS ALSO TOLD THAT THEY HAVE NO ESTIMATED DATE ON WHEN THE REPAIR PART WOULD BE AVAILABLE. SO WE AR…
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WAS JUST NOTIFIED OF THE RECALL FOR THE REAR AXLE PINION NUT PROBLEM AND WHEN I CALLED CHRYSLER VIA THEIR TOLL FREE NUMBER, I WAS TOLD THAT THE RECALL NOTICE WAS MAILED ON 4/1/2013 EVEN THOUGH I DID NOT RECEIVE IT FOR 30 DAYS. WAS ALSO TOLD THAT THEY HAVE NO ESTIMATED DATE ON WHEN THE REPAIR PART WOULD BE AVAILABLE. SO WE ARE EXPECTED TO CONTINUE TO DRIVE OUR UNSAFE VEHICLES SEVERAL MONTHS AFTER INITIAL RECALL BECAUSE CHRYSLER IS FAILING ON THE MANUFACTURE OF AND DELIVERY OF REPAIR PART. I THINK I WILL GO CALL AN ATTORNEY. *TR
NHTSA ODI #10510689
Mileage unknown · May 1, 2013
Power Train
STILL NO REMEDY PARTS AVAILABLE (ACCORDING TO MY DODGE DEALER) TO SATISFY A REAR AXLE PINION NUT SAFETY RECALL. I RECEIVED THE SAFETY RECALL NOTICE M34 VIA US MAIL IN OCTOBER 2012 WITH THE STATEMENT "CHRYSLER ANTICIPATES THE REMEDY PARTS WILL BE MADE AVAILABLE WITHIN THE 1ST QUARTER OF 2013." WELL, IT'S MAY 1ST AND NO ACTION. …
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STILL NO REMEDY PARTS AVAILABLE (ACCORDING TO MY DODGE DEALER) TO SATISFY A REAR AXLE PINION NUT SAFETY RECALL. I RECEIVED THE SAFETY RECALL NOTICE M34 VIA US MAIL IN OCTOBER 2012 WITH THE STATEMENT "CHRYSLER ANTICIPATES THE REMEDY PARTS WILL BE MADE AVAILABLE WITHIN THE 1ST QUARTER OF 2013." WELL, IT'S MAY 1ST AND NO ACTION. I'M CONCERNED THAT THIS DELAY COULD INCREASE THE LIKELIHOOD OF A PROBLEM ON MY REAR AXLE. I'M ALSO CONCERNED THAT THE VALUE OF MY TRUCK IS DIMINISHED UNTIL THE REPAIR CAN BE MADE. PLEASE DEMAND THAT CHRYSLER REMEDY THIS ASAP. THANK YOU! *TR
NHTSA ODI #10510263
Mileage unknown · Apr 16, 2013
Power Train
TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THERE WAS A RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER 13V038000 (POWER TRAIN), HOWEVER THE PART WAS UNAVAILABLE. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM AND WAS UNABLE TO PROVIDE AN ESTIMATED DATE FOR THE PART TO BECOME AVAILABLE. THE CONTACT HAD CONCERN O…
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TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THERE WAS A RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER 13V038000 (POWER TRAIN), HOWEVER THE PART WAS UNAVAILABLE. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM AND WAS UNABLE TO PROVIDE AN ESTIMATED DATE FOR THE PART TO BECOME AVAILABLE. THE CONTACT HAD CONCERN OF THE SAFETY ISSUES MENTIONED IN THE RECALL. THERE WAS NO FAILURE.
NHTSA ODI #10508396
111,000 miles · Apr 8, 2013
Power Train
RECEIVED RECALL NOTICE CHRYSLER M34-N08/NHTSA 12V-474 IN DECEMBER 2012, PRIOR TO HAVING 100,000 MILES ON MY VEHICLE. NOW IN LATE MARCH 2013 (OUT OF WARRANTY-MILEAGE), THE REAR DIFFERENTIAL HAS STARTED MAKING A LOUD WHINING NOISE. THE DEALERSHIP HAS DONE A PRELIMINARY DIAGNOSIS OF BEARING FAILURE AND SUGGESTED THE REAR DIFFERENTI…
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RECEIVED RECALL NOTICE CHRYSLER M34-N08/NHTSA 12V-474 IN DECEMBER 2012, PRIOR TO HAVING 100,000 MILES ON MY VEHICLE. NOW IN LATE MARCH 2013 (OUT OF WARRANTY-MILEAGE), THE REAR DIFFERENTIAL HAS STARTED MAKING A LOUD WHINING NOISE. THE DEALERSHIP HAS DONE A PRELIMINARY DIAGNOSIS OF BEARING FAILURE AND SUGGESTED THE REAR DIFFERENTIAL BE REBUILT. I HAVE FOLLOWED ALL PM'S AND FIND IT HARD TO BELIEVE THAT MY REAR DIFFERENTIAL IS FAILING AT 111,000 MILES. OF COURSE THE PARTS FOR RECALL ARE NOT AVAILABLE AND NEITHER CHRYSLER OR THE DEALERSHIP WILL RECOGNIZE THE SUBSEQUENT FAILURES OF THE RECALLED REAR AXLE PINION NUT FAILING. I NEED MY VEHICLE FOR WORK RELATED PURPOSES AND AM TERRIFIED OF DRIVING MY VEHICLE. CHRYSLER AND THEIR DODGE DEALERSHIPS NEED TO BE BETTER PREPARED FOR THIS RECALL, RECOGNIZE THAT THE REAR AXLE PINION NUT FAILING CAN/WILL CAUSE SUBSEQUENT FAILURES IN A REAR DIFFERENTIAL, AND PROVIDE ADEQUATE REPAIRS TO MITIGATE ANY FUTURE ISSUES WITH THE REAR DIFFERENTIAL. *TR
NHTSA ODI #10507530
74,000 miles · Mar 22, 2013
Power Train
TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE REAR END OF THE VEHICLE SWERVED LEFT AND RIGHT UNCONTROLLABLY. THE VEHICLE WAS BROUGHT TO A STOP WAS LATER TOWED TO A DEALER FOR DIAGNOSIS. THE CONTACT WAS INFORMED THAT THE REAR AXLE SEIZED, THE PINION SHAFT HAD BECOME DETACHED, AND TH…
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TL* THE CONTACT OWNS A 2010 DODGE RAM 1500. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE REAR END OF THE VEHICLE SWERVED LEFT AND RIGHT UNCONTROLLABLY. THE VEHICLE WAS BROUGHT TO A STOP WAS LATER TOWED TO A DEALER FOR DIAGNOSIS. THE CONTACT WAS INFORMED THAT THE REAR AXLE SEIZED, THE PINION SHAFT HAD BECOME DETACHED, AND THE U JOINT DETACHED. THE MANUFACTURER WAS CONTACTED AND INFORMED THE CONTACT THAT SINCE THE VEHICLE WAS USED FOR TOWING, IT WAS INELIGIBLE TO BE REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 12V474000 (POWER TRAIN). THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 74,000...UPDATED 10/30/13 *BF UPDATED 11/4/2013 *JS
NHTSA ODI #10504132
Official recalls
4Mar 8, 2018
Chrysler (FCA US LLC) is recalling certain 2009-2012 Dodge Ram 1500 trucks currently, or ever registered, in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia. Exposure to environmental conditions such as water mixed with road salt may cause the front fuel tank strap frame "T-Slot" bracket to corrode, possibly causing the fuel tank to drop and make contact with the ground.
Consequence & remedy
Consequence: If the fuel tank were to drop and contact the ground, a fuel leak may result. Additionally, in the event of a crash, the fuel tank may not remain secured to the vehicle, possibly causing a fuel leak. A fuel leak in the presence in an ignition source, can increase the risk of a fire.
Remedy: Chrysler will notify owners and dealers will bolt a bracket reinforcement to the frame, free of charge. The recall began May 2, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U04.
Dec 20, 2017
Chrysler (FCA US LLC) is recalling certain 2016-2017 Ram 3500 Cab Chassis with a Gross Vehicle Weight Rating (GVWR) of less than 10,000 lbs, 2011-2017 Ram 3500, 4500 and 5500 Cab Chassis vehicles, 2009-2017 Ram 1500 and 2010-2017 Ram 2500 and 3500 pickup trucks, all equipped with a column shifter. Pushing the brake pedal for prolonged periods when the vehicle is running and in PARK may cause the Brake Transmission Shift Interlock (BTSI) pin to stick in the open position. With the pin in the open position, the transmission can be shifted out of PARK into any gear without pushing the brake pedal or having the key in the ignition.
Consequence & remedy
Consequence: Being able to shift the transmission without pushing the brake pedal and/or without a key in the ignition can increase the risk of an unintended vehicle rollaway that may result in personal injury or a crash.
Remedy: Chrysler will notify owners, and dealers will update the vehicle software, inspect the BTSI, and, as necessary, replace it, free of charge. The recall began February 26, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T79.
Feb 6, 2013
Chrysler is recalling certain model year 2009-2012 Ram 1500 trucks manufactured from February 27, 2008, through June 30, 2009, and from December 1, 2009, through October 20, 2011; model year 2009-2011 Dodge Dakota trucks manufactured from February 27, 2007, through June 30, 2009, and from December 1, 2009, through September 30, 2011; model year 2009 Chrysler Aspen trucks manufactured from January 3, 2008, through December 18, 2008; and model year 2009 Dodge Durango trucks manufactured from January 3, 2008, through December 18, 2008. The rear axle pinion nut may loosen due to an undersized pinion spline that can allow relative motion between the nut and companion flange.
Consequence & remedy
Consequence: If the rear axle pinion nut loosens, the axle can lock up and cause a loss of vehicle control and/or a vehicle crash with little warning.
Remedy: On November 7, 2013 Chrysler notified owners that dealers would install a pinion nut retainer, free of charge. In July 2015, and under a consent order with NHTSA, the company agreed to offer owners three options for remedying their vehicles: perform the original remedy, offer to repurchase the vehicle at the fair market value plus 10%, or offer an additional incentive offer towards the purchase of a new Dodge, Jeep, Chrysler, or Fiat vehicle. Chrysler will notify owners of the new recall options in a letter expected to be mailed on August 31, 2015. Owners may contact Chrysler at 1-800-247-9753. Chrysler's recall campaign number is N08.
Oct 2, 2012
Chrysler is recalling certain model year 2009-2010, Ram 1500 and Dodge Dakota trucks, manufactured from July 1, 2009, through November 30, 2009, because the rear axle pinion nut may loosen due to a lack of adhesive.
Consequence & remedy
Consequence: If the rear axle pinion nut loosens, the axle can lock up and cause a loss of vehicle control and/or a vehicle crash with little warning.
Remedy: Chrysler will notify owners, and dealers will install a pinion nut retainer, free of charge. The recall began on June 17, 2013. Owners may contact Chrysler at 1-800-247-9753.
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
1EA19001 · 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.