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2011 Dodge RAM 2500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2011 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

149 reports with mileage · 148 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 210 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Suspension. Review the 37 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

3 crash reports6 fire reports3 injury reports

Service Brakes complaints

10 reports
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75,000 miles · Jan 13, 2021
Service BrakesSteering

TL* THE CONTACT OWNS A 2011 RAM 2500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 MPH AND MAKING A LEFT TURN, THE BRAKING SYSTEM MALFUNCTIONED AND THE VEHICLE WOULD NOT IMMEDIATELY SLOW DOWN. ADDITIONALLY, THE POWER STEERING FAILED CAUSING THE STEERING WHEEL TO BECOME DIFFICULT TO TURN. THE CONTACT INDICATED THAT THE …

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TL* THE CONTACT OWNS A 2011 RAM 2500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 MPH AND MAKING A LEFT TURN, THE BRAKING SYSTEM MALFUNCTIONED AND THE VEHICLE WOULD NOT IMMEDIATELY SLOW DOWN. ADDITIONALLY, THE POWER STEERING FAILED CAUSING THE STEERING WHEEL TO BECOME DIFFICULT TO TURN. THE CONTACT INDICATED THAT THE FAILURE HAD OCCURRED ON FOUR SEPARATE OCCASIONS AND OCCURRED WHILE THE RPM WAS BELOW 700 RPM. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO WAS UNABLE TO DUPLICATE THE FAILURE. NO REPAIRS WERE PERFORMED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. A DEALER WAS NOT CONTACTED. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 75,000.*DT FAILURE OCCURRED AFTER BRAKING AND GOING ABOUT 20 MPH AFTER THE RPM'S DROP TO ABOUT 700.*JB

NHTSA ODI #11387896

89,500 miles · Dec 30, 2018
Service BrakesUnknown Or Other

INTEGRATED TRAILER BRAKE SYSTEM FAILED AND WILL NOT READ ANY TRAILER WHEN CONNECTED. STATES 'TRAILER DISCONNECTED'

NHTSA ODI #11164131

35,800 miles · Jun 4, 2016
Service BrakesSteering

WHILE MAKING A TURN AND APPLYING THE BRAKE PEDAL, COMPLETE LOSS OF POWER STEERING CAUSING VEHICLE TO CROSS CENTER LINE OF ROADWAY AND DRIVE INTO ONCOMING TRAFFIC. BRAKE PEDAL ALSO EXTREMELY HARD TO PRESS (POSSIBLY LOSS OF POWER BRAKING AT THE SAME TIME). STEERING RETURNING TO NORMAL SEVERAL SECONDS AFTER RELEASING THE BRAKE PEDA…

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WHILE MAKING A TURN AND APPLYING THE BRAKE PEDAL, COMPLETE LOSS OF POWER STEERING CAUSING VEHICLE TO CROSS CENTER LINE OF ROADWAY AND DRIVE INTO ONCOMING TRAFFIC. BRAKE PEDAL ALSO EXTREMELY HARD TO PRESS (POSSIBLY LOSS OF POWER BRAKING AT THE SAME TIME). STEERING RETURNING TO NORMAL SEVERAL SECONDS AFTER RELEASING THE BRAKE PEDAL. THIS HAPPENED MULTIPLE TIMES TODAY, WITH SHUTTING THE VEHICLE OFF COMPLETELY BETWEEN OCCURRENCES OF THIS FAILURE.

NHTSA ODI #10872527

62,500 miles · Mar 14, 2016
Service Brakes

I AM HAVING PROBLEMS WITH THE FACTORY INSTALLED BRAKE CONTROLLER ON MY 2011 RAM 2500. THE CONTROLLER WILL NOT SEND ENOUGH POWER TO THE TRAILER TO STOP IT EVEN WITH THE BRAKE CONTROLLER SET TO THE MAX. I HAVE HAD THE TRAILER CHECKED AND TOWED IT WITH OTHER TRUCKS WITH NO PROBLEMS. I CONTACTED DODGE ABOUT THE PROBLEM AND WAS TOLD …

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I AM HAVING PROBLEMS WITH THE FACTORY INSTALLED BRAKE CONTROLLER ON MY 2011 RAM 2500. THE CONTROLLER WILL NOT SEND ENOUGH POWER TO THE TRAILER TO STOP IT EVEN WITH THE BRAKE CONTROLLER SET TO THE MAX. I HAVE HAD THE TRAILER CHECKED AND TOWED IT WITH OTHER TRUCKS WITH NO PROBLEMS. I CONTACTED DODGE ABOUT THE PROBLEM AND WAS TOLD THAT THEY WERE NO PROBLEMS REPORTED. UPON CHECKING WITH A LOCAL DODGE DEALER I WAS ADVISED THAT OTHERS HAD THE SAME COMPLAINT. I ALSO FOUND A UPDATE FOR THE BRAKE CONTROLLER WHICH DIDNT HELP. THIS IS VERY DANGEROUS AND DODGE WAS TOLD. I AM GOING TO HAVE TO PUT A AFTERMARKET CONTROLLER IN MY VEHICLE TO TOW THE TRAILER SAFELY. MY CONCERN IS SAFETY. WHY DID DODGE LIE ABOUT PROBLEMS WITH THE FACTORY BRAKE CONTROLLER AND DID CHANGE IT IN 2012 SO YOU HAVE MORE CONTROL AND WHY WERE THEY A UPDATE FOR THE BRAKE CONTROLLER THAT DODGE DIDNT TELL THE OWNERS. THIS IS A SERIOUS PROBLEM THAT DODGE NEEDS TO FIX

NHTSA ODI #10849650

47,260 miles · Aug 21, 2015
Service BrakesSteering

AUGUST 7, 2015, I WAS DRIVING MY 2011 DODGE 2500 4X4 CREW CAB DIESEL WITH 47265 MILES, DOWN A NARROW CANYON ROAD WITH A DROP OFF INTO A RIVER ON ONE SIDE NEAR MY HOME. I BEGAN A RIGHTHAND TURN AT ABOUT 20-25 MPH WHEN BOTH THE POWER STEERING AND POWER BRAKES WENT OUT. I WAS PULLING WITH BOTH HANDS AND HAD BOTH FEET ON THE BREAK …

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AUGUST 7, 2015, I WAS DRIVING MY 2011 DODGE 2500 4X4 CREW CAB DIESEL WITH 47265 MILES, DOWN A NARROW CANYON ROAD WITH A DROP OFF INTO A RIVER ON ONE SIDE NEAR MY HOME. I BEGAN A RIGHTHAND TURN AT ABOUT 20-25 MPH WHEN BOTH THE POWER STEERING AND POWER BRAKES WENT OUT. I WAS PULLING WITH BOTH HANDS AND HAD BOTH FEET ON THE BREAK AND I WAS STILL HEADING STRAIGHT ACROSS THE CENTER LINE TOWARD ANOTHER CAR GOING THE OPPOSITE DIRECTION. I DO BELIEVE IT WAS A MIRACLE THAT BOTH VEHICLES DIDN'T END UP DOWN THE EMBANKMENT AND IN THE RIVER. I WAS ABLE TO STOP THE TRUCK IN A TURNOUT PAST THE CURVE, I COULD NOT FIND ANY LEAKS OR ANYTHING BINDING IN THE STEERING. WHEN I RESTARTED THE TRUCK THE STEERING AND BRAKES WORKED FINE, SO I DROVE THE 1 1/2 MILES BACK HOME WHERE IT HAPPENED AGAIN TURNING INTO MY DRIVE WAY. THE DODGE DEALER STATED THAT THE BRAKE BOOSTER FAILED AND THAT HAD CAUSED THE POWER STEERING PUMP TO FAIL AND IT WOULD COST CLOSE TO $2000.00 TO FIX. I TOLD THEM TO GO AND FIX IT, BUT MY LAWYER AND I WOULD BE HAVING A TALK WITH DODGE BECAUSE I BELIEVE THIS IS A SAFETY PROBLEM AND DODGE IS LUCKY THAT THEY ARE NOT OWNING 3 FATALITIES. THE STATED THAT THEY WOULD CALL THE FACTORY REPRESENTATIVE. THE DEALER CALLED BACK AND STATED IT WOULD ONLY B E $500.00 FOR "CUSTOMER PARTICIPATION OF GOODWILL CDED". I HAVE LOST ALL CONFIDENCE IN THE SAFETY OF THIS TRUCK AND WITH THIS ISSUE AND WAITING 5 MOS. FOR PARTS ON ONE RECALL AND 4 MONTHS ON ANOTHER. I CAN'T EVEN SELL IT BECAUSE I AM WAITING ON AN O2 SENSOR FOR 2 1/2 MOS. NOW. PLEASE LOOK INTO THIS STEERING AND BRAKE ISSUE TO SEE IF IT IS AN ISOLATED PROBLEM OR SOMETHING ELSE BEFORE SOMEBODY DOES GET KILLED.

NHTSA ODI #10750306

Mileage unknown · Jul 30, 2015
Service Brakes

THE BRAKES SKIP WHEN BEING APPLIED AT ANY SPEED. TOOK THE TRUCK TO GET SERVICED AT THE DODGE DEALER AND THE MECHANIC KNEW EXACTLY WHAT WAS WRONG BY THE DESCRIPTION I GAVE HIM. HE STATED HE NORMALLY GETS DODGE TRUCKS IN TWO THREE TIMES A WEEK FOR THE SAME ISSUE. BASICALLY, DODGE USED A SLEEVED BRAKE LINE AND THE INNER LINE IS…

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THE BRAKES SKIP WHEN BEING APPLIED AT ANY SPEED. TOOK THE TRUCK TO GET SERVICED AT THE DODGE DEALER AND THE MECHANIC KNEW EXACTLY WHAT WAS WRONG BY THE DESCRIPTION I GAVE HIM. HE STATED HE NORMALLY GETS DODGE TRUCKS IN TWO THREE TIMES A WEEK FOR THE SAME ISSUE. BASICALLY, DODGE USED A SLEEVED BRAKE LINE AND THE INNER LINE IS SEPARATING FROM THE OUTER SLEEVE AND SLIDING INTO THE PUMP. HE STATED ALMOST A FOOT OF BRAKE LINE HAD SLIDE INTO MY PUMP. AT 37K MILES SOMETHING LIKE THIS SHOULD NOT BE AN ISSUE.

NHTSA ODI #10744957

100,300 miles · Sep 15, 2014
Service Brakes

INTEGRATED TRAILER BRAKE DOES NOT BRAKE WITH TRAILER. THE TRUCK HAS TO DO ALL THE BRAKING FOR VEHICLE AND TRAILER CAUSING VERY UNSAFE TOWING. CHRYSLER IS NOT HELPFUL WITH ASSISTING MY LOCAL DEALER TO REMEDY THIS ISSUE EVEN AFTER I HAVE ALREADY PAID FOR THE UNIT TO BE FIXED. *TR

NHTSA ODI #10633415

36,080 miles · Jul 29, 2013
Service BrakesSteeringSuspension

TRUCK SUDDENLY STARTED BOUNCING ALL OVER THE ROAD. FELT AS THOUGH ALL FOUR TIRES HAD SUDDENLY GONE FLAT. EXTREMELY DIFFICULT TO MAINTAIN CONTROL AND WENT INTO ONCOMING LANE SIDEWAYS. INSPECTION DID NOT SHOW ANY FAILED COMPONENT (TIRE, STEERING SYSTEM, ETC). CHECK ENGINE LIGHT ILLUMINATED FOR A DAY, THEN WENT OFF. LIGHT ILLUMINAT…

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TRUCK SUDDENLY STARTED BOUNCING ALL OVER THE ROAD. FELT AS THOUGH ALL FOUR TIRES HAD SUDDENLY GONE FLAT. EXTREMELY DIFFICULT TO MAINTAIN CONTROL AND WENT INTO ONCOMING LANE SIDEWAYS. INSPECTION DID NOT SHOW ANY FAILED COMPONENT (TIRE, STEERING SYSTEM, ETC). CHECK ENGINE LIGHT ILLUMINATED FOR A DAY, THEN WENT OFF. LIGHT ILLUMINATED AGAIN, WITH NO INDICATION OF PROBLEM. LOSS OF CONTROL HAS HAPPENED THREE MORE TIMES SINCE FIRST OCCURRENCE. SIMILAR SPEEDS DURING EACH EVENT, WITH TWO DIFFERENT OPERATORS. SERIOUS DIFFICULTY RETAINING CONTROL TO STOP THE VEHICLE AND ROLL OVER/CRASH CONCERNS PRECLUDE ATTEMPTING TO DUPLICATE EVENT. DEALERSHIP HAS BEEN UNRESPONSIVE TO DATE. I WILL NEVER TRUST THE ONCOMING DODGE TRUCK UNTIL THIS IS ADDRESSED. PEOPLE ARE GOING TO DIE. IT IS SAD. *TR

NHTSA ODI #10532402

25,000 miles · Jan 30, 2013
Service BrakesSteering

WHEN GETTING OFF THE EXPRESSWAY RAMP THE BRAKES SEEMED WEAK, THEN I COULD NOT TURN THE WHEEL AND HAD TO ALMOST STOP. I HAD NO POWER ASSIST ON THE STEERING AT THIS POINT. ONCE THE WHEELS WERE STRAIGHT AGAIN IT SEEMED FINE. THE NEXT FEW TURNS HAD THE SAME PROBLEMS CAUSING ME TO ALMOST HIT OBJECTS AND OTHER CARS AS I COULD NOT …

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WHEN GETTING OFF THE EXPRESSWAY RAMP THE BRAKES SEEMED WEAK, THEN I COULD NOT TURN THE WHEEL AND HAD TO ALMOST STOP. I HAD NO POWER ASSIST ON THE STEERING AT THIS POINT. ONCE THE WHEELS WERE STRAIGHT AGAIN IT SEEMED FINE. THE NEXT FEW TURNS HAD THE SAME PROBLEMS CAUSING ME TO ALMOST HIT OBJECTS AND OTHER CARS AS I COULD NOT TURN THE VEHICLE. I WAS NOT PULLING ANYTHING AT THE TIME. MY SON-IN-LAW HAD THE SAME ISSUE ON HIS SAME MAKE/MODEL/YEAR DODGE TRUCK AT ABOUT THE SAME MILEAGE LAST YEAR WHILE PULLING A 5TH WHEEL. HE TOOK IT IN AND THEY FLUSHED OUT THE POWER STEERING SYSTEM AS A FIX AND IT HAS NOT OCCURRED AGAIN....YET. PROBLEM COULD BE RELATED TO CONTAMINATION IN THE HYDRAULIC SYSTEM WHICH WILL JAM VALVES, OR IT COULD BE IN ELECTRONICS MODULES. EITHER WAY ITS NOT GOOD, ESPECIALLY WHEN PULLING A LARGE 5TH WHEEL. *TR

NHTSA ODI #10495201

26,000 miles · Nov 6, 2012
Service Brakes

TL* THE CONTACT OWNS A 2011 DODGE RAM 2500. THE CONTACT STATED THAT WHILE DRIVING 45 MPH, THE BRAKES LOCKED UP AND CAUSED THE VEHICLE TO STOP INSTANTLY. THE VEHICLE WAS RESTARTED BUT HE WAS HAVING DIFFICULTY DRIVING IT TO HIS HOUSE. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR INSPECTION. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTU…

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TL* THE CONTACT OWNS A 2011 DODGE RAM 2500. THE CONTACT STATED THAT WHILE DRIVING 45 MPH, THE BRAKES LOCKED UP AND CAUSED THE VEHICLE TO STOP INSTANTLY. THE VEHICLE WAS RESTARTED BUT HE WAS HAVING DIFFICULTY DRIVING IT TO HIS HOUSE. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR INSPECTION. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 26,000.

NHTSA ODI #10483471

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.

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.

11V350000 · Steering:linkages:tie Rod Assembly

Jul 6, 2011

CHRYSLER IS RECALLING CERTAIN MODEL YEAR 2008-2011 DODGE RAM 2500/3500 4X4, MANUFACTURED FROM FEBRUARY 14, 2008, THROUGH MARCH 28, 2011; MODEL YEAR 2008-2011 DODGE RAM 3500 CAB CHASSIS 4X2, MANUFACTURED FROM FEBRUARY 14, 2008, THROUGH MARCH 28, 2011; AND MODEL YEAR 2008 DODGE RAM 1500 MEGA CAB 4X4, MANUFACTURED FROM FEBRUARY 14, 2008, THROUGH AUGUST 15, 2008, BECAUSE THE LEFT TIE ROD BALL STUD MAY FRACTURE. THIS CONDITION TENDS TO OCCUR DURING LOW SPEED PARKING LOT TYPE MANEUVERS WHEN THE CUSTOMER IS MAKING A TIGHT TURN. ADDITIONALLY, MODEL YEAR 2003-2008 DODGE RAM 2500/3500 VEHICLES MAY HAVE RECEIVED THE AFFECTED TIE ROD ASSEMBLY AS A REPLACEMENT PART DURING NORMAL SERVICE.

Consequence & remedy

Consequence: THIS CONDITION COULD RESULT IN THE POTENTIAL LOSS OF DIRECTIONAL STABILITY IN THE LEFT HAND FRONT WHEEL, INCREASING THE RISK OF A CRASH.

Remedy: DEALERS WILL INSPECT THE TIE ROD ENDS FOR RELATIVE ORIENTATION AND REPLACE THE LEFT OUTER TIE ROD AS REQUIRED AND PERFORM A FRONT END TOE ALIGNMENT AS NEEDED. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON OCTOBER 3, 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.