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2011 Dodge RAM 1500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2011 Dodge RAM 1500 do not stand out strongly from the model-year median of 520.

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When problems were reported

Mileage at the reported incident

491 reports with mileage · 197 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.

  • Electrical System. Review the 214 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 175 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 151 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

28 crash reports7 fire reports17 injury reports

What owners actually said

688 reports
100,000 miles · Aug 5, 2015
Electrical System

TL* THE CONTACT OWNS A 2011 RAM 1500. THE CONTACT STATED THAT IN ORDER FOR THE VEHICLE TO START, THE VEHICLE NEEDED TO BE SHIFTED FROM PARK TO DRIVER SEVERAL TIMES IN ORDER TO TURN THE KEY INTO THE IGNITION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000. …

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TL* THE CONTACT OWNS A 2011 RAM 1500. THE CONTACT STATED THAT IN ORDER FOR THE VEHICLE TO START, THE VEHICLE NEEDED TO BE SHIFTED FROM PARK TO DRIVER SEVERAL TIMES IN ORDER TO TURN THE KEY INTO THE IGNITION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000. MA 09/22/15

NHTSA ODI #10746520

30,500 miles · Aug 5, 2015
Unknown Or Other

AT INTERSTATE SPEEDS TRUCK HAS VIBRATION. THOUGHT MAYBE RIM HAD LOST COUNTER WEIGHT. NOT THE CASE AFTER DOING SOME RESEARCH. I BELIEVE CHRYSLER HAS NOT DONE ALL HOMEWORK ON THE LATEST RECALL WHICH I HAD KNOWN NOTHING ABOUT UNTIL THIS BIG ISSUE WITH THE BUYBACK. OF COURSE MY TRUCK HAS NO RECALLS WHAT SO EVER. MY TRUCK WAS MANUFAC…

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AT INTERSTATE SPEEDS TRUCK HAS VIBRATION. THOUGHT MAYBE RIM HAD LOST COUNTER WEIGHT. NOT THE CASE AFTER DOING SOME RESEARCH. I BELIEVE CHRYSLER HAS NOT DONE ALL HOMEWORK ON THE LATEST RECALL WHICH I HAD KNOWN NOTHING ABOUT UNTIL THIS BIG ISSUE WITH THE BUYBACK. OF COURSE MY TRUCK HAS NO RECALLS WHAT SO EVER. MY TRUCK WAS MANUFACTURED IN MARCH 2011. FROM WHAT I HAVE READ RECALL COVERS TRUCKS MANUFACTURED THROUGH DECEMBER 2011. NOT SURE THAT MY TRUCK HAS PINION NUT ISSUES BUT SOUNDS LIKE THE SYMPTOMS. ANYONE OTHER OWNERS RUNNING INTO THIS?

NHTSA ODI #10746445

15,000 miles · Aug 4, 2015
SteeringSuspensionUnknown Or Other

SAFETY RECALL N08 / NHTSA 13V-038 REAR AXLE PINION NUT I HAD MY VEHICLE CALLED IN FOR A RECALL AFTER PURCHASE AT THE END OF 2013. EVER SINCE THEN I HAVE HAD SHAKY AND JERKY STEERING AT TIMES ESPECIALLY AT A HIGHWAY RATE OF SPEED (55-70 MPH). I HAVE NOT TAKEN IT TO THE DEALERSHIP DUE TO FINANCES AND MY WARRANTY IS NO LONER VA…

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SAFETY RECALL N08 / NHTSA 13V-038 REAR AXLE PINION NUT I HAD MY VEHICLE CALLED IN FOR A RECALL AFTER PURCHASE AT THE END OF 2013. EVER SINCE THEN I HAVE HAD SHAKY AND JERKY STEERING AT TIMES ESPECIALLY AT A HIGHWAY RATE OF SPEED (55-70 MPH). I HAVE NOT TAKEN IT TO THE DEALERSHIP DUE TO FINANCES AND MY WARRANTY IS NO LONER VALID. AFTER READING THE RECALL DETAILS NOW I AM ASSUMING THIS HAS BEEN THE ISSUE. AFTER READING WHAT COULD POSSIBLY HAPPEN DUE TO THIS ISSUE I FEEL UNSAFE DRIVING THE VEHICLE AND NO LONER ALLOW MY 1 YEAR OLD SON IN THE VEHICLE.

NHTSA ODI #10746268

75,000 miles · Aug 4, 2015
Suspension

WHEN DRIVING OVER 60, THE ENTIRE TRUCK VIOLENTLY SHAKES/WOBBLES/VIBRATES. THIS HAPPENS ANYTIME GOING OVER 60, AND IS NOT CAUSED BY HITTING A BUMP OR SLOPE IN THE ROAD. BEEN TO CHRYSLER NUMEROUS TIMES AND THEY CANNOT FIND A ROOT CAUSE. REPLACED ALL TIRES, ALIGNED, NEW U-JOINTS, NEW ROTORS, STILL IS NOT RESOLVED.

NHTSA ODI #10746112

25,000 miles · Aug 3, 2015
SteeringSuspension

TL* THE CONTACT OWNS A 2011 RAM 1500. WHILE DRIVING AT 50 MPH, THE VEHICLE SHOOK VIOLENTLY WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE VEHICLE WAS FUNCTIONING AS DESIGNED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 25,…

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TL* THE CONTACT OWNS A 2011 RAM 1500. WHILE DRIVING AT 50 MPH, THE VEHICLE SHOOK VIOLENTLY WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE VEHICLE WAS FUNCTIONING AS DESIGNED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 25,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI #10745877

57,000 miles · Jul 31, 2015
Power TrainService Brakes

WE WERE TRAVELING HOME JULY 18TH ON THE INTERSTATE WHEN THE TRUCK STARTED SHAKING AND HE TRIED TO GET OFF THE INTERSTATE ON AN EXIT. THE STEARING MESSED UP AND HE LIKE TO HAVE NOT GOT IT STOPPED BEFORE WE WERE RUNNING OUT OF RAMP. IT' WAS LIGHT NOT HAVING CONTROL OF THE WHEEL OR BRAKES. WHEN WE GOT STOPPED HE OPENED THE HOOD TO…

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WE WERE TRAVELING HOME JULY 18TH ON THE INTERSTATE WHEN THE TRUCK STARTED SHAKING AND HE TRIED TO GET OFF THE INTERSTATE ON AN EXIT. THE STEARING MESSED UP AND HE LIKE TO HAVE NOT GOT IT STOPPED BEFORE WE WERE RUNNING OUT OF RAMP. IT' WAS LIGHT NOT HAVING CONTROL OF THE WHEEL OR BRAKES. WHEN WE GOT STOPPED HE OPENED THE HOOD TO SEE IF HE COULD SEE A PROBLEM THERE. HE ALSO WALKED AROUNG THE ENTIRE TRUCK CHECKING TIRES. WE FINALLY DECIDED TO TRY IT AGAIN. WE WERE THEN ONLY ABOUT 60 MILES FROM HOME. WE DROVE SLOWER THE REST OF THE WAY BECAUSE THAT WAS A VERY SCARY THING TO HAVE HAPPEN. OUR GRANDDAUGHTER HAD SOFTBALL PRACTICE WED. NIGHT IN KNOXVILLE TENN. IT WASN'T AS BAD AS AS THE 18TH BUT IT DONE IT A FEW TIMES ON US AGAIN. WE HAUL PRESIOUS CARGO , OUR GRANDDAUGHTERS, IT SCARES US TO DEATH DRIVING WITH THEM IN THA TRUCK. I TALED TO CHRYSLER 3 DAYS AGO AND SHE TOLD ME I WOULD GET AN EMAIL IN A DAY OR 2. SHE ALSO HAS US AN APPOINTMENT TO GET THE BOLT PUT ON ON AUGUST 17TH. BUT OUR CONCERNS ARE IT MAY HAVE MORE DAMAGE BECAUSE OF THE BRAKES AND STEERING DOING THIS. WE ONLY BOUGHT THIS TRUCK ON APRIL 19TH 2015. THE RECALLS ARE FROM 2013. WHY WEREN'T THEY FIXED THEN? THE TRUCK HAD NOT EVEN TURNED OVER 50,00 MILES WHEN WE BOUGHT IT. WE BOUGHT IT BECAUSE IT HAD LOW MILES AND WE WANT A SAFE VEHICLE TO TRAVEL TO HER GAMES AND PRACTICES. NOW WE ARE AFRAID THAT SOMETHING WILL HAPPEN AND THEY MIGHT GET HURT. I TRIED TO CALL THEM AGAIN TODAY, JULY 31ST I WAS ON HOLD FOR OVER 4 HRS.NEVER DID GET A REAL PERSON TO ANSWER.

NHTSA ODI #10745469

Mileage unknown · Jul 29, 2015
Service BrakesCrashInjury

TL* THE CONTACT OWNED A 2011 RAM 1500. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 55 MPH ON A HILL, THE BRAKE PEDAL FAILED TO RESPOND. AS A RESULT, THE VEHICLE FLIPPED ABOUT ONE HUNDRED YARDS AND CRASHED LANDING UPRIGHT. A POLICE REPORT WAS FILED. THERE WERE TWO UNKNOWN INJURED THAT REQUIRED MEDICAL ATTENTION. THE VE…

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TL* THE CONTACT OWNED A 2011 RAM 1500. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 55 MPH ON A HILL, THE BRAKE PEDAL FAILED TO RESPOND. AS A RESULT, THE VEHICLE FLIPPED ABOUT ONE HUNDRED YARDS AND CRASHED LANDING UPRIGHT. A POLICE REPORT WAS FILED. THERE WERE TWO UNKNOWN INJURED THAT REQUIRED MEDICAL ATTENTION. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ODI #10744776

15,000 miles · Jul 29, 2015
Power Train

MY 2011 RAM 1500 SUMMARY REPORT SHOWS: "NO RECALL INFORMATION AVAILABLE". THE DEALER EXPLAINS MY TRUCK IS NOT ELIGIBLE FOR THE BUYBACK OFFER. IS THE DEALER CORRECT THAT THE VEHICLE IS NOT PART OF THE FCA BUYBACK OFFER? I TALKED TO A CHRYSLER REP ON 7/28/15 WHO RESEARCHED THIS AND THE RECALL AFFECTS THE 2011 RAM 1500 WITH A …

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MY 2011 RAM 1500 SUMMARY REPORT SHOWS: "NO RECALL INFORMATION AVAILABLE". THE DEALER EXPLAINS MY TRUCK IS NOT ELIGIBLE FOR THE BUYBACK OFFER. IS THE DEALER CORRECT THAT THE VEHICLE IS NOT PART OF THE FCA BUYBACK OFFER? I TALKED TO A CHRYSLER REP ON 7/28/15 WHO RESEARCHED THIS AND THE RECALL AFFECTS THE 2011 RAM 1500 WITH A 9:25 REAR AXLE AND THAT MY TRUCK HAS A DIFFERENT(?) REAR AXLE. I'M NOT SURE WHAT HE IS TALKING ABOUT. IS A RECALL LETTER REQUIRED? RECALL SUBJECT : REAR AXLE PINION NUT MAY LOOSEN AT DIFFERENTIAL , 1 INVESTIGATION(S) REPORT RECEIPT DATE: FEB 06, 2013 NHTSA CAMPAIGN NUMBER: 13V038000 COMPONENT(S): POWER TRAIN POTENTIAL NUMBER OF UNITS AFFECTED: 278,229 ALL PRODUCTS ASSOCIATED WITH THIS RECALL EXPAND DETAILS CLOSE 13 ASSOCIATED DOCUMENTS EXPAND MANUFACTURER: CHRYSLER GROUP LLC SUMMARY: CHRYSLER IS RECALLING CERTAIN MODEL YEAR 2009-2012 RAM 1500 TRUCKS MANUFACTURED FROM DECEMBER 1, 2009, THROUGH OCTOBER 20, 2011; MODEL YEAR 2009-2011 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 NOVEMBER 7, 2013. RECALLSINVESTIGATIONS COMPLAINTSSERVICE BULLETINSNHTSA ID'S

NHTSA ODI #10744670

65,000 miles · Jul 29, 2015
Suspension

TL* THE CONTACT OWNS A 2011 DODGE RAM 1500. WHILE DRIVING AT AN UNKNOWN SPEED, THE FRONT AXLE FRACTURED WITHOUT WARNING. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE FRONT AXLE FRACTURED CAUSING A FAILURE WITH THE 4 WHEEL DRIVE AND THE TRANSFER CASE. THE DEALER STATED THAT THE PART NEEDED WAS NOT AVAILABLE A…

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TL* THE CONTACT OWNS A 2011 DODGE RAM 1500. WHILE DRIVING AT AN UNKNOWN SPEED, THE FRONT AXLE FRACTURED WITHOUT WARNING. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE FRONT AXLE FRACTURED CAUSING A FAILURE WITH THE 4 WHEEL DRIVE AND THE TRANSFER CASE. THE DEALER STATED THAT THE PART NEEDED WAS NOT AVAILABLE AND THAT THEY WERE WAITING FOR A NEWLY DESIGNED PART TO REMEDY THE FAILURE. THE DEALER WAS NOT ABLE TO PROVIDE THE PART NEEDED TO REPAIR THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND WAS NOT ABLE TO SUPPLY THE PART TO THE DEALER TO REPAIR THE VEHICLE. THE APPROXIMATE FAILURE MILEAGE WAS 65,000. MA 10/6 UPDATED 12/13/2017*CN

NHTSA ODI #10744614

85,000 miles · Jul 28, 2015
StructureCrashInjury

I WAS SITTING AT AN ENTRANCE NOT MOVING WHEN A CNN RAIL REPAIR TRUCK JUMPED THE CURB RAN INTO MY DRIVER SIDE FRONT FENDER AND TORE HALF FRONT END PARTS OFF SPUN ME 180 HIT REAR DRIVER SIDE PANEL ON SOME STEEL POSTS WAS INJURED BROKEN COLLAR BONE BROKEN RIBS HIT HEAD OFF DRIVER SIDE WINDOW HAVE WIPLASH NO AIR BAGS WENT OFF AT AL…

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I WAS SITTING AT AN ENTRANCE NOT MOVING WHEN A CNN RAIL REPAIR TRUCK JUMPED THE CURB RAN INTO MY DRIVER SIDE FRONT FENDER AND TORE HALF FRONT END PARTS OFF SPUN ME 180 HIT REAR DRIVER SIDE PANEL ON SOME STEEL POSTS WAS INJURED BROKEN COLLAR BONE BROKEN RIBS HIT HEAD OFF DRIVER SIDE WINDOW HAVE WIPLASH NO AIR BAGS WENT OFF AT ALL IN MY TRUCK

NHTSA ODI #10744500

Official recalls

4

18V160000 · Fuel System, Gasoline:storage:tank Assembly:mounting

Mar 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.

17V821000 · Power Train:automatic Transmission:lever And Linkage:column Shift

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.

13V038000 · Power Train:driveline:differential Unit

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.

10V656000 · Suspension:rear:axle:spindle

Dec 24, 2010

CHRYSLER IS RECALLING CERTAIN MODEL YEAR 2011 RAM 1500 TRUCKS MANUFACTURED FROM SEPTEMBER 2009 THROUGH DECEMBER 2010. SOME VEHICLES MAY HAVE EXPERIENCE A NOISE (GROWL, GRIND) COMING FROM THE REAR AXLE BEARING WHICH COULD EVENTUALLY SEIZE.

Consequence & remedy

Consequence: A FAILURE OF THE BEARING COULD CAUSE THE VEHICLE TO STALL INCREASING THE RISK OF A CRASH.

Remedy: CHRYSLER WILL NOTIFY OWNERS AND WILL INSTALL AN OIL PORT INSERT INTO THE REAR AXLE FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 4, 2011. OWNERS MAY CONTACT CHRYSLER AT 1-800-853-1403.

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

1

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.