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2012 Dodge RAM 1500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2012 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

472 reports with mileage · 225 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 175 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 163 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel/propulsion System. Review the 92 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

32 crash reports10 fire reports20 injury reports

What owners actually said

697 reports
110,000 miles · Dec 5, 2019
Electrical SystemEngine

WHILE DRIVING THE VEHICLE ON THE HIGHWAY, IT LOST POWER AND SHUT OFF. HAD IT TOWED TO A MECHANIC AND THEY SAID MY VALVES, LIFTERS, AND CAMSHAFT WERE DAMAGED. THE TRUCK ONLY HAS 110,000 MILES ON IT. WHEN THE TRUCK LOST POWER, IT WOULD HAVE CAUSED AN ACCIDENT, LUCKY THOUGH I WAS ABLE TO PULL OVER IN ENOUGH TIME, BEFORE ANOTHER VE…

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WHILE DRIVING THE VEHICLE ON THE HIGHWAY, IT LOST POWER AND SHUT OFF. HAD IT TOWED TO A MECHANIC AND THEY SAID MY VALVES, LIFTERS, AND CAMSHAFT WERE DAMAGED. THE TRUCK ONLY HAS 110,000 MILES ON IT. WHEN THE TRUCK LOST POWER, IT WOULD HAVE CAUSED AN ACCIDENT, LUCKY THOUGH I WAS ABLE TO PULL OVER IN ENOUGH TIME, BEFORE ANOTHER VEHICLE COULD HIT ME. THIS SEEMS TO BE A COMMON THING, WITH THESE TRUCKS, THE MECHANIC CAN'T REPLACE THE PIECES BECAUSE OF OUT OF STOCK, SO HE WANTS TO REPLACE THE WHOLE ENGINE. THIS ISSUE NEEDS TO BE INVESTIGATED, BEFORE SOMEONE DOES GET INTO AN ACCIDENT.

NHTSA ODI #11287172

148,000 miles · Dec 2, 2019
Engine

CYLINDER MISFIRE AT HIGH RPM. ROLLER LIFTERS GETTING STUCK OR WEARING AND CAUSING GROOVES OR EXCESSIVE CAMSHAFT WEAR. RANDOM CYLINDERS AND LIFTERS BECOMING STUCK OR BEARINGS ON LIFTERS FAILING CAUSING EXCESSIVE AND PREMATURE CAMSHAFT WEAR OR FAILURE OF LOBES ON CAMSHAFT. 2012 HEMI 5.7L ENGINE. HAPPENS WHEN ENGINE PUT UNDER A LOA…

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CYLINDER MISFIRE AT HIGH RPM. ROLLER LIFTERS GETTING STUCK OR WEARING AND CAUSING GROOVES OR EXCESSIVE CAMSHAFT WEAR. RANDOM CYLINDERS AND LIFTERS BECOMING STUCK OR BEARINGS ON LIFTERS FAILING CAUSING EXCESSIVE AND PREMATURE CAMSHAFT WEAR OR FAILURE OF LOBES ON CAMSHAFT. 2012 HEMI 5.7L ENGINE. HAPPENS WHEN ENGINE PUT UNDER A LOAD SUCH AS GETTING ONTO HIGHWAY OR PASSING A SLOWER MOVING VEHICLE. UNDER LOAD OR HIGHER RPM ENGINE FAULT LIGHT ILLUMINATES AND WILL BLINK ON AND OFF FOR A FEW SECONDS. PURCHASED ON 11/16/19 AS USED VEHICLE. ODOMETER 147514.

NHTSA ODI #11286333

Mileage unknown · Dec 1, 2019
Electrical SystemUnknown Or Other

I HAVE A 2012 DODGE RAM 1500 THAT WAS PURCHASED BRAND NEW. THE TRUCK SHUTS OFF WHILE DRIVING ON THE STREETS OR TURNING AND SOMETIMES WHILE AT A COMPLETE STOP. IT STARTED A COUPLE YEARS AGO BUT HAS GOTTEN WORSE. THIS IS VERY DANGEROUS. I PUT MY VIN # IN AND THERE IS NO RECALL WHICH THERE SHOULD BE AFTER READING THERE ARE HUNDREDS…

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I HAVE A 2012 DODGE RAM 1500 THAT WAS PURCHASED BRAND NEW. THE TRUCK SHUTS OFF WHILE DRIVING ON THE STREETS OR TURNING AND SOMETIMES WHILE AT A COMPLETE STOP. IT STARTED A COUPLE YEARS AGO BUT HAS GOTTEN WORSE. THIS IS VERY DANGEROUS. I PUT MY VIN # IN AND THERE IS NO RECALL WHICH THERE SHOULD BE AFTER READING THERE ARE HUNDREDS OF CUSTOMERS THAT'S HAVING THE SAME PROBLEMS. I WOULD LIKE THIS PROBLEM TO BE FIXED WITHOUT MYSELF HAVING TO PAY FOR THIS. VERY VERY DISAPPOINTED IN THIS TRUCK.

NHTSA ODI #11283154

58,000 miles · Nov 29, 2019
Air Bags

TL* THE CONTACT OWNS A 2012 RAM 1500. THE CONTACT STATED THAT THE AIR BAG WARNING INDICATOR STARTED FLASHING AND REMAINED ILLUMINATED PERMANENTLY. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 58,000. VEHICLE WAS TAKEN TO THE DODGE DEALER WHERE CONSUMER PURCHASED VEHICLE.. CONSUMER WAS INFORMED THAT HE WO…

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TL* THE CONTACT OWNS A 2012 RAM 1500. THE CONTACT STATED THAT THE AIR BAG WARNING INDICATOR STARTED FLASHING AND REMAINED ILLUMINATED PERMANENTLY. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 58,000. VEHICLE WAS TAKEN TO THE DODGE DEALER WHERE CONSUMER PURCHASED VEHICLE.. CONSUMER WAS INFORMED THAT HE WOULD HAVE TO PAY TO HAVE DIAGNOSTIC TESTING DONE TO DETERMINE THE CAUSE OF THE FAILURE. CONSUMER STATES FAILURE IS COMMON IN OTHER 2012 DODGE RAM 1500 VEHICLES. CONSUMER SAYS FAILURE WAS CAUSED BY THE WIRING HARNESS IN THE STEERING COLUMN. MANUFACTURER WAS NOTIFIED OF THE FAILURE BUT DID NOT ASSIST. *DL

NHTSA ODI #11282846

77,130 miles · Nov 22, 2019
Electronic Stability Control (esc)Fuel/propulsion System

IN MY 2012 DODGE RAM1500.WHEN I TURN OFF MY IGNITION KEY EVERYTHING IS OFF ALREADY I HEARD SOMETHING STILL RUNNING UNDER MY REAR CHASSIS WHEN I CHECK THE FUEL PUMP STILL RUNNING I'M VERY SCARED IT MIGHT CAUSE OF FIRE BECAUSE FUEL PUMP DOES'T STOP EVEN KEY IS OFF.I LEAVE MY TRUCK FOR HOW MANY HOURS THE PUMP STOP BUT WHEN I CHECK…

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IN MY 2012 DODGE RAM1500.WHEN I TURN OFF MY IGNITION KEY EVERYTHING IS OFF ALREADY I HEARD SOMETHING STILL RUNNING UNDER MY REAR CHASSIS WHEN I CHECK THE FUEL PUMP STILL RUNNING I'M VERY SCARED IT MIGHT CAUSE OF FIRE BECAUSE FUEL PUMP DOES'T STOP EVEN KEY IS OFF.I LEAVE MY TRUCK FOR HOW MANY HOURS THE PUMP STOP BUT WHEN I CHECK THE TRUCK MY BATTERY ARE DRAIN.AND MY VSC KEEP TURNING ON IN OFF I CAN'T DRIVE BECAUSE MY TRUCK LOOK LIKE LOOSING POWER AND VSC KEEP BLINKING EVEN SUNNY DAY. THANK YOU I HOPE WE RESOVE THIS PROBLEM.

NHTSA ODI #11281870

156,000 miles · Nov 18, 2019
SuspensionInjury

LOWER CONTROL ARM BROKE IN HALF DRIVING STRAIGHT THROUGH A PARKING LOT, CAUSING PARTIAL SEPARATION OF FRONT PASSENGER WHEEL AND HUB ASSEMBLY FROM VEHICLE AND LOSS OF VEHICLE CONTROL AS WELL AS SUDDEN DECELERATION. RESULTING IN COMPLETE DAMAGE TO BRAKE LINE, UPPER CONTROL ARM, DRIVE SHAFT, STEERING RACK, STEERING COLUMN(BROKEN I…

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LOWER CONTROL ARM BROKE IN HALF DRIVING STRAIGHT THROUGH A PARKING LOT, CAUSING PARTIAL SEPARATION OF FRONT PASSENGER WHEEL AND HUB ASSEMBLY FROM VEHICLE AND LOSS OF VEHICLE CONTROL AS WELL AS SUDDEN DECELERATION. RESULTING IN COMPLETE DAMAGE TO BRAKE LINE, UPPER CONTROL ARM, DRIVE SHAFT, STEERING RACK, STEERING COLUMN(BROKEN INTERNAL STEERING SHAFT), AIRBAG AND STEERING WHEEL CONTROLS CLOCKSPRING, PASSENGER FENDER, BUMPER ASSEMBLY, AS WELL AS SECOND DEGREE BURNS TO FOREARMS FROM THE RESULTING STEERING WHEEL BACKLASH. THIS OCCURRED AT APPX 10MPH. AN ACQUAINTANCE QUALIFIED TO HAVE AN OPINION ON THE CAUSE LOOKED AT PHOTOS OF THE PARTS GRAIN STRUCTURE AT BREAK, CONCLUDED CASTING ERROR OF CAST ALUMINUM CONTROL ARM.*DT *JS*DT IN NOV 21, 2019 CONSUMER STATED HE REPLACED THE FOLLOWING HIMSELF UPPER CONTROL ARM, LOWER CONTROL ARM, BRAKE LINE, FRONT R DRIVE SHAFT, STEERING RACK, FENDER, IMPACT ABSORBER/BUMPER SUPPORT, STEERING COLUMN, AIRBAG CLOCK SPRING, FENDER LINER AND AIRBOX/FILTER SUPPORT. CONSUMER ALSO STATED, IT APPEARS TONE RING IN THE BEARING HUB FOR ABS SPEED SENSOR WAS DAMAGED BY THIS OCCURRENCE, THIS HAS YET TO BE REPLACED.*JB*DT*JB

NHTSA ODI #11280900

54,000 miles · Nov 6, 2019
Air Bags

TL* THE CONTACT OWNS A 2012 RAM 1500. WHILE DRIVING APPROXIMATELY 70 MPH, THE AIR BAG WARNING INDICATOR SUDDENLY ILLUMINATED. THE CONTACT TOOK THE VEHICLE TO A CERTIFIED MECHANIC WHO WAS UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE. THE CONTACT TOOK THE VEHICLE TO ATHENS DODGE CHRYSLER JEEP RAM (LOCATED AT 4145 ATLANTA HWY, ATHEN…

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TL* THE CONTACT OWNS A 2012 RAM 1500. WHILE DRIVING APPROXIMATELY 70 MPH, THE AIR BAG WARNING INDICATOR SUDDENLY ILLUMINATED. THE CONTACT TOOK THE VEHICLE TO A CERTIFIED MECHANIC WHO WAS UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE. THE CONTACT TOOK THE VEHICLE TO ATHENS DODGE CHRYSLER JEEP RAM (LOCATED AT 4145 ATLANTA HWY, ATHENS, GA 30606, 706-510-0290), BUT IT WAS NOT OFFICIALLY DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 54,000. *CW MANUFACTURER STATED THAT A DIAGNOSTIC CHECK WAS NEEDED TO REPLACE THE WIRING HARNESS IN THE STEERING COLUMN. CONSUMER STATES THAT THIS IS A COMMON PROBLEM WITH DODGE RAM 1500 TRUCKS AND THAT MANUFACTURER SHOULD DO A RECALL. *DL

NHTSA ODI #11278456

81,000 miles · Oct 17, 2019
Air Bags

TL* THE CONTACT OWNS A 2012 RAM 1500. WHILE DRIVING 15 MPH, THE DRIVER'S SIDE AIR BAG POPPED WITHOUT WARNING. AFTER THE AIR BAG POPPED, THE CHECK ENGINE AND AIR BAG WARNING INDICATORS ILLUMINATED. THERE WERE NO INJURIES. THE CONTACT TOOK THE VEHICLE TO RICHARDSON CHRYSLER JEEP DODGE RAM (1321 N CENTRAL EXPY, RICHARDSON, TX 75080…

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TL* THE CONTACT OWNS A 2012 RAM 1500. WHILE DRIVING 15 MPH, THE DRIVER'S SIDE AIR BAG POPPED WITHOUT WARNING. AFTER THE AIR BAG POPPED, THE CHECK ENGINE AND AIR BAG WARNING INDICATORS ILLUMINATED. THERE WERE NO INJURIES. THE CONTACT TOOK THE VEHICLE TO RICHARDSON CHRYSLER JEEP DODGE RAM (1321 N CENTRAL EXPY, RICHARDSON, TX 75080, 214-329-0862) AND WAS INFORMED THAT THERE WAS AN UNKNOWN TRANSMISSION RECALL ON THE VEHICLE, BUT NOTHING IN RELATION TO THE AIR BAGS. THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 15V459000 (AIR BAGS); HOWEVER, THE VIN WAS NOT INCLUDED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 81,000.

NHTSA ODI #11269163

89,000 miles · Oct 17, 2019
Power TrainSuspension

TL* THE CONTACT OWNS A 2012 RAM 1500. WHILE DRIVING VARIOUS SPEEDS, THE REAR OF THE VEHICLE SHOOK AND VIBRATED. THE VEHICLE WAS TAKEN TO FILLBACK CHRYSLER JEEP (1702 ELM ST, BOSCOBEL, WI) WHERE THE WHEELS WERE ROTATED AND BALANCED AND THE DRIVESHAFT WAS REPLACED; HOWEVER, THE FAILURES CONTINUED. THE CAUSE OF THE FAILURE WAS NOT …

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TL* THE CONTACT OWNS A 2012 RAM 1500. WHILE DRIVING VARIOUS SPEEDS, THE REAR OF THE VEHICLE SHOOK AND VIBRATED. THE VEHICLE WAS TAKEN TO FILLBACK CHRYSLER JEEP (1702 ELM ST, BOSCOBEL, WI) WHERE THE WHEELS WERE ROTATED AND BALANCED AND THE DRIVESHAFT WAS REPLACED; HOWEVER, THE FAILURES CONTINUED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 89,000. *LN*JB

NHTSA ODI #11269093

Mileage unknown · Sep 25, 2019
Suspension

BAD WOBBLE WHEN TRUCK GET TO 70.MPH

NHTSA ODI #11258175

Official recalls

6

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.

17V824000 · Equipment

Dec 21, 2017

Chrysler (FCA US LLC) is recalling various Dodge, Chrysler, and RAM vehicles equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. A list of the affected trailer models is available at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V824-0103.pdf. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf

Consequence & remedy

Consequence: If the fire extinguisher does not function properly, it can increase the risk of injury in the event of a fire.

Remedy: Chrysler will notify owners instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began February 14, 2018. Owners may contact Chrysler customer service at 1-800-853-1403 or Kidde customer service service toll-free at 1-855-262-3540, or online at www.kidde.com and click on "Product Safety Recall" for more information. Chrysler's number for this recall is T82.

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.

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.

12V192000 · Equipment:other:labels

May 2, 2012

CHRYSLER IS RECALLING CERTAIN MODEL YEAR 2012 RAM 1500 TRUCKS, MANUFACTURED FROM JANUARY 5, 2012 THROUGH JANUARY 6, 2012. THE AFFECTED VEHICLES HAVE A SPARE TIRE THAT DOES NOT MATCH THE SPECIFICATIONS LISTED ON THE TIRE PLACARD. THUS, THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, “TIRE SELECTION AND RIMS.”

Consequence & remedy

Consequence: IF INSTALLED, THE INCORRECTLY SIZED SPARE TIRE MAY UNEXPECTEDLY ACTIVATE THE ELECTRONIC STABILITY CONTROL (ESC) SYSTEM, ALTERING THE EFFECTIVENESS OF THE ESC SYSTEM, INCREASING THE RISK OF A CRASH.

Remedy: CHRYSLER WILL NOTIFY OWNERS, AND DEALERS WILL INSPECT AND REPAIR VEHICLES AS NECCESSARY FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MAY 21, 2012. OWNERS SHOULD 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.