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2012 Dodge RAM 2500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2012 Dodge RAM 2500 do not stand out strongly from the model-year median of 275.

About this comparison →

When problems were reported

Mileage at the reported incident

179 reports with mileage · 104 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.

  • Steering. Review the 109 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 51 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 44 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

8 crash reports12 fire reports4 injury reports

What owners actually said

283 reports
10,000 miles · Oct 19, 2015
Suspension

TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. WHEN THE VEHICLE MADE A LEFT TURN, A POPPING NOISE WAS PRESENT NEAR THE FRONT END OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHO WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT WAS INFORMED THAT T…

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TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. WHEN THE VEHICLE MADE A LEFT TURN, A POPPING NOISE WAS PRESENT NEAR THE FRONT END OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHO WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT WAS INFORMED THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 13V529000 (SUSPENSION). THE CONTACT STATED THAT THE VEHICLE EXPERIENCED THE SAME FAILURE LISTED IN THE RECALL. THE FAILURE MILEAGE WAS 10,000.

NHTSA ODI #10783222

Mileage unknown · Oct 7, 2015
Steering

TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 13V529000 (STEERING) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE REPAIR. THE DEALER STATED THAT PARTS WERE NOT AVAILABLE. THE MANUFACTURER WAS ALSO MADE AWARE OF THE DELAY THE VEHICLE WAS NOT REPAIRED. THE CONTACT HAD NOT EXPERIENCED A FA…

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TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 13V529000 (STEERING) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE REPAIR. THE DEALER STATED THAT PARTS WERE NOT AVAILABLE. THE MANUFACTURER WAS ALSO MADE AWARE OF THE DELAY THE VEHICLE WAS NOT REPAIRED. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

NHTSA ODI #10780563

42,600 miles · Oct 5, 2015
Steering

MY GRANDSON AND I WERE TAKING MY 2012 DODGE RAM TO THE DEALER FOR WARRANTY WORK WE WERE DOING AROUND 60 MPH WHEN WE CROSSED A RAIL ROAD CROSSING THE VEHICLE STARTED WOBBLING SO BAD I THOUGHT I HAD BLOWN A TIRE EVERYTHING ON THE DASH AND CENTER CONSOLE FLEW ON THE FLOOR ANYTHING IN THE BACK SEAT WENT UNDER THE FRONT SEAT IT SCARE…

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MY GRANDSON AND I WERE TAKING MY 2012 DODGE RAM TO THE DEALER FOR WARRANTY WORK WE WERE DOING AROUND 60 MPH WHEN WE CROSSED A RAIL ROAD CROSSING THE VEHICLE STARTED WOBBLING SO BAD I THOUGHT I HAD BLOWN A TIRE EVERYTHING ON THE DASH AND CENTER CONSOLE FLEW ON THE FLOOR ANYTHING IN THE BACK SEAT WENT UNDER THE FRONT SEAT IT SCARED BOTH OF US. I TOLD THE DEALERSHIP ABOUT IT THEY COULD FIND NOTHING BUT AXLE SEALS LEAKING BUT DID,NT HAVE TIME TO FIX THEM. I WORK IN THE NORTH DAKOTA OIL FIELDS I HAVE TO HAVE THIS VEHICLE SO I GOT AN APPOINTMENT AT ANOTHER DEALERSHIP 100 MILES AWAY THEY COULD FIND NOTHING WRONG INCLUDING THE AXLE SEALS AND CHARGED ME 96.30. I TOOK THIS VEHICLE 1150 MILES TO NORTH DAKOTA WITHOUT ANY PROBLEMS HOWEVER ON THE WAY BACK WAS ANOTHER STORY. MONTANA RAISED THEIR SPEED LIMIT TO 80 MPH AT SLIGHTLY OVER THAT THE VEHICLE STARTED WOBBLING OUT OF CONTROL WHEN I WENT ACROSS ONE OF THOSE LITTLE BUMPS ON A BRIDGE I DID NOT THINK I WAS GOING TO GET IT UNDER CONTROL BEFOR I WENT OFF THE ROAD OR IN TO THE GUARD RAIL IT DID THIS TO ME THREE MORE TIMES BEFOR I GOT HOW. I STOPPED BY THE DEALERSHIP THAT I BOUGHT IT FROM AND THEY SAID THERE WAS NO RECALL ON THIS VEHICLE. I CALLED DODGE CUSTOMER SERVICE THEY INFORMED ME THAT IT WAS PROBABLY A WOREN TIRE OR IT WAS OUT OF ALIGNMENT. I FIND OUT THERE IS A CLASS ACTION LAWSUIT AGAINST DODGE FOR THIS AND THEY RISK MY LIFE AND MY FAMILIES LIFE NOT TO MENTION THE PEOPLE I COULD HAVE KILLED IF I HAD BEEN PASSING A TRUCK OR ANYONE ELSE ON THIS FREEWAY AT THE TIME THIS HAPPENED AT 80 MPH SOMEONE USUALLY DIES IN AN ACCIDENT. I WAS NEVER NOTIFIED OF ANY KIND OF SAFETY HAZARD WITH THIS PICKUP.

NHTSA ODI #10779761

Mileage unknown · Oct 2, 2015
Steering

TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. THE CONTACT DID NOT RECEIVE NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 13V529000 (STEERING) HOWEVER, THE PART NEEDED TO PERFORM THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOTIFIED OF …

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TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. THE CONTACT DID NOT RECEIVE NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 13V529000 (STEERING) HOWEVER, THE PART NEEDED TO PERFORM THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

NHTSA ODI #10779322

Mileage unknown · Sep 28, 2015
Steering

I HAD RECALL N49 / NHTSA 13V-529 CONDUCTED ON MY VEHICLE, NOW THE STEERING WHEEL HAS MOVED FROM THE CENTER TO THE RIGHT. MY DIRECTION OF TRAVEL IS STRAIGHT, WHEN DRIVING, BUT THE TOP OF STEERING WHEEL IS NOW POINTED TO THE 2:00 PM. I ASKED THE LARRY H MILLER RAM IN UTAH, IF I COULD DO A BUY BACK AND THEY TOLD ME "NO YOUR VEHIC…

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I HAD RECALL N49 / NHTSA 13V-529 CONDUCTED ON MY VEHICLE, NOW THE STEERING WHEEL HAS MOVED FROM THE CENTER TO THE RIGHT. MY DIRECTION OF TRAVEL IS STRAIGHT, WHEN DRIVING, BUT THE TOP OF STEERING WHEEL IS NOW POINTED TO THE 2:00 PM. I ASKED THE LARRY H MILLER RAM IN UTAH, IF I COULD DO A BUY BACK AND THEY TOLD ME "NO YOUR VEHICLE DOES NOT QUALIFY BECAUSE YOU HAD THE N49 DONE ON IT". WHEN I READ THE FCA V NHTSA IT DID NOT SAY THAT, IT SAID THEY "FCA" WILL DO A BUY BACK DUE TO THE CASE IN QUESTION.

NHTSA ODI #10778280

10,000 miles · Sep 25, 2015
Tires

TL* THE CONTACT OWNS A 2012 DODGE RAM 2500 EQUIPPED WITH FEDERAL COURAGIA A/T TIRES, SIZE: /12.5 /R20 (NA). THE CONTACT STATED THAT THE BELTS SEPARATED FROM UNDERNEATH THE THREAD ON THE FRONT DRIVER SIDE AND REAR PASSENGER TIRES, MAKING THE TIRES UNSAFE. THE TIRES WERE TAKEN TO THE DEALER WHO STATED THAT THE TIRES WERE NOT COVE…

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TL* THE CONTACT OWNS A 2012 DODGE RAM 2500 EQUIPPED WITH FEDERAL COURAGIA A/T TIRES, SIZE: /12.5 /R20 (NA). THE CONTACT STATED THAT THE BELTS SEPARATED FROM UNDERNEATH THE THREAD ON THE FRONT DRIVER SIDE AND REAR PASSENGER TIRES, MAKING THE TIRES UNSAFE. THE TIRES WERE TAKEN TO THE DEALER WHO STATED THAT THE TIRES WERE NOT COVERED FOR ROAD HAZARD. THE CONTACT REPLACED THE DRIVER SIDE TIRE. THE REAR PASSENGER TIRE WAS NOT REPLACED DUE TO THE FAILURE OCCURRING AFTER THE THE DRIVER SIDE TIRE WAS REPLACED. THE CONTACT WAS UNABLE TO DRIVE THE VEHICLE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE AND TIRE FAILURE MILEAGE WAS 10,000. THE DOT NUMBER WAS NOT AVAILABLE.

NHTSA ODI #10776619

Mileage unknown · Sep 25, 2015
EngineFuel/propulsion System

TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 14V635000 (ENGINE AND ENGINE COOLING, FUEL SYSTEM, DIESEL); HOWEVER, THE PART NEEDED TO PERFORM THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. T…

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TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 14V635000 (ENGINE AND ENGINE COOLING, FUEL SYSTEM, DIESEL); HOWEVER, THE PART NEEDED TO PERFORM THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

NHTSA ODI #10776611

55,000 miles · Aug 27, 2015
Suspension

TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. WHILE DRIVING 65 MPH, A CRACKING NOISE EMITTED FROM THE DRIVE LINE UNDER THE VEHICLE. THE CONTACT MERGED OVER TO THE SIDE OF THE ROAD AND THE CRACKING NOISE BECAME LOUDER. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN INSPECTED THE VEHICLE BUT WAS UNABLE TO DIAGNOSE THE FAILURE. TH…

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TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. WHILE DRIVING 65 MPH, A CRACKING NOISE EMITTED FROM THE DRIVE LINE UNDER THE VEHICLE. THE CONTACT MERGED OVER TO THE SIDE OF THE ROAD AND THE CRACKING NOISE BECAME LOUDER. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN INSPECTED THE VEHICLE BUT WAS UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS TAKEN TO ANOTHER DEALER, WHERE IT WAS DIAGNOSED THAT THE DRIVE SHAFT WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK A THIRD TIME TO THE DEALER, WHO DIAGNOSED THAT THE DIFFERENTIAL FAILED AND NEEDED TO BE REBUILD. THE REPAIRS WERE PERFORMED BUT THE FAILURE PERSISTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 55,000.

NHTSA ODI #10759832

165,000 miles · Aug 25, 2015
Steering

TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. WHILE DRIVING AT APPROXIMATELY 70 MPH AFTER ENCOUNTERING A POTHOLE, THE FRONT END OF THE VEHICLE STARTED VIOLENTLY SHAKING WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE UPPER AND LOWER BALL JOINTS, THE FRONT SHOCK STEERING DAMPER, THE…

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TL* THE CONTACT OWNS A 2012 DODGE RAM 2500. WHILE DRIVING AT APPROXIMATELY 70 MPH AFTER ENCOUNTERING A POTHOLE, THE FRONT END OF THE VEHICLE STARTED VIOLENTLY SHAKING WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE UPPER AND LOWER BALL JOINTS, THE FRONT SHOCK STEERING DAMPER, THE TRACKING BAR, THE DIFFERENTIAL GASKET SEAL, AND A FRONT WHEEL ALIGNMENT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 165,000.

NHTSA ODI #10759149

50,222 miles · Aug 18, 2015
SteeringSuspensionWheelsCrash

I NOTICED FOR 6-8 MOS STEERING ISSUE TO THE LEFT, CALLED DEALER SAID NOTHING WRONG. AT VARIOUS TIMES A STRANGE CLUNKING CLICKING LEFT FRONT WHEEL AREA AS DECELERATING AND TURNING LEFT WEIGHT TO THE FRONT. NOW CHOPPY TIRE LEFT FRONT AS THERE ARE NO BALL JOINTS IT APPEARS TIE ROD IS BAD OR SOMETHING. WHILE PULLING INTO A TURN THE…

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I NOTICED FOR 6-8 MOS STEERING ISSUE TO THE LEFT, CALLED DEALER SAID NOTHING WRONG. AT VARIOUS TIMES A STRANGE CLUNKING CLICKING LEFT FRONT WHEEL AREA AS DECELERATING AND TURNING LEFT WEIGHT TO THE FRONT. NOW CHOPPY TIRE LEFT FRONT AS THERE ARE NO BALL JOINTS IT APPEARS TIE ROD IS BAD OR SOMETHING. WHILE PULLING INTO A TURN THE OTHER DAY AUGUST 17,2015 THE VEH PULLED HEARD THE CLANK AGAIN AND THE STEERING PULL CAUSED US TO STRIKE FIXED OBJECT. DEALER SAYS NOT AFFECTED BY RECALL, BUT WE HAVE ALL THE SAME ISSUES, AND NOTED FOR AWHILE STEERING AT INTERMITTENT TIMES PROBLEMS... WHAT CAN I DO VERY AFRAID TO DRIVE AS WE DRIVE INTERSTATE OFTEN WITH LOADS, WE NEED THE VEHICLE BUT IT SEEMS TO HAVE THE SAME ISSUE AS RECALL EVEN THOUGH OUR VIN SHOWS DIFFERENT PLANT, BUT WHAT DO WE DO JUST BE KILLED FIRST? HELP PLEASE.

NHTSA ODI #10749629

Official recalls

4

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.

15V459000 · Air Bags:frontal

Jul 22, 2015

Chrysler (FCA US LLC) is recalling certain model year 2012-2014 Ram 1500, 2500, 3500, 4500, and 5500 trucks manufactured January 18, 2011, to October 7, 2014, and equipped with the Electronic Vehicle Information Center option. The affected vehicles have a steering wheel wiring harness that may rub against the driver air bag module retainer spring.

Consequence & remedy

Consequence: This abrasion may result in an electrical short that could cause driver's frontal air bag to unexpectedly deploy. Inadvertent deployment of the air bag may increase the risk of injury and the possibility of a vehicle crash.

Remedy: Chrysler will notify owners, and dealers will inspect, repair as necessary, and secure the steering wheel wiring harness. Additionally, protective caps will be added to the air bag retainer spring ends. These repairs will be done free of charge. The recall began on September 18, 2015. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is R36.

14V635000 · Engine And Engine Cooling:engine:diesel; Fuel System, Diesel

Oct 8, 2014

Chrysler Group LLC (Chrysler) is recalling certain model year 2010-2014 Ram 2500, 3500, 4500, and 5500 trucks manufactured March 27, 2009, to September 5, 2013. In the affected vehicles, the electrical connectors of the diesel fuel heater may overheat.

Consequence & remedy

Consequence: If the connectors overheat, the fuel heater may leak fuel, increasing the risk of a fire.

Remedy: Chrysler will notify owners, and dealers will replace the harness side connector with a silver plated beryllium copper terminal service kit, and inspect the fuel heater for leaks, replacing it as necessary, free of charge. Chrysler issued interim notification to owners on December 8, 2014. The recall began on April 27, 2015. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is P65.

Additional source detail variants (2)

Fuel System, Diesel

Chrysler Group LLC (Chrysler) is recalling certain model year 2010-2014 Ram 2500, 3500, 4500, and 5500 trucks manufactured March 27, 2009, to September 5, 2013. In the affected vehicles, the electrical connectors of the diesel fuel heater may overheat.

Consequence: If the connectors overheat, the fuel heater may leak fuel, increasing the risk of a fire.

Remedy: Chrysler will notify owners, and dealers will replace the harness side connector with a silver plated beryllium copper terminal service kit, and inspect the fuel heater for leaks, replacing it as necessary, free of charge. Chrysler issued interim notification to owners on December 8, 2014. The recall began on April 27, 2015. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is P65.

Engine And Engine Cooling:engine:diesel

Chrysler Group LLC (Chrysler) is recalling certain model year 2010-2014 Ram 2500, 3500, 4500, and 5500 trucks manufactured March 27, 2009, to September 5, 2013. In the affected vehicles, the electrical connectors of the diesel fuel heater may overheat.

Consequence: If the connectors overheat, the fuel heater may leak fuel, increasing the risk of a fire.

Remedy: Chrysler will notify owners, and dealers will replace the harness side connector with a silver plated beryllium copper terminal service kit, and inspect the fuel heater for leaks, replacing it as necessary, free of charge. Chrysler issued interim notification to owners on December 8, 2014. The recall began on April 27, 2015. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is P65.

13V529000 · Steering:linkages:tie Rod Assembly

Nov 6, 2013

Chrysler Group LLC (Chrysler) is recalling certain model year 2008-2012 RAM 2500 4X4 and 3500 4X4 trucks, 2008-2012 Dodge RAM 3500 4x2 Cab Chassis, and model year 2008 Dodge RAM 1500 Mega Cab 4x4. The left tie rod assembly may break.

Consequence & remedy

Consequence: A failure of the tie rod assembly may result in a loss of steering control, increasing the risk of a crash.

Remedy: Chrysler notified owners on January 16, 2014 that dealers would inspect vehicles and replace the steering linkage assembly, if necessary. On or about February 27, 2014, Chrysler ceased its recall remedy program due to parts quality concerns, and then re-initiated it on or about April 14, 2014. 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 N49.

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.