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2012 Fiat 500

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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When problems were reported

Mileage at the reported incident

289 reports with mileage · 106 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.

  • Power Train. Review the 200 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 63 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 51 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

21 crash reports4 fire reports16 injury reports

What owners actually said

395 reports
29,412 miles · Feb 11, 2014
Power Train

2012 FIAT 500 CLUTCH WENT OUT AS WE WERE NEARING RAILROAD TRACKS. WE COULD NOT GET AUTO INTO ANY GEAR AND HAD TO COAST OVER THE TRACKS AND INTO OUR NEIGHBORHOOD. WE HAD IT TOWED TO THE DEALER FOR SERVICE. THEY STATED IT WAS A WORN CLUTCH EVEN THOUGH WE HAD LESS THAN 30,000 MILES. WE ASKED THEM TO INVESTIGATE IF IT WERE FAUL…

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2012 FIAT 500 CLUTCH WENT OUT AS WE WERE NEARING RAILROAD TRACKS. WE COULD NOT GET AUTO INTO ANY GEAR AND HAD TO COAST OVER THE TRACKS AND INTO OUR NEIGHBORHOOD. WE HAD IT TOWED TO THE DEALER FOR SERVICE. THEY STATED IT WAS A WORN CLUTCH EVEN THOUGH WE HAD LESS THAN 30,000 MILES. WE ASKED THEM TO INVESTIGATE IF IT WERE FAULTY PARTS. THEY STATED OURS WAS THE ONLY KNOWN CASE. WE FOUND MANY OTHER CASES ON THE INTERNET. WE COULD HAVE HURT OR KILLED, ESPECIALLY IF IT HAD HAPPENED WHILE WE WERE IN THE FREEWAY FAST LANE. FIAT PAID FOR OUR PARTS, AND WE PAID FOR THE LABOR. THEY EVENTUALLY AGREED TO REIMBURSE US FOR THE LABOR "AS A GESTURE OF GOODWILL". WE ARE WAITING FOR THE CHECK. WE ARE STILL CONCERNED ABOUT THE SAFETY OF THESE PARTS IN OTHER CARS, AND ABOUT THE SAFETY OF OUR REPLACED PARTS. *TR

NHTSA ODI #10563902

12,400 miles · Feb 1, 2014
Vehicle Speed Control

I EXPERIENCED UNINTENDED ACCELERATION TWICE THIS WEEK. THE FIRST INCIDENT TOOK PLACE ON JANUARY 31, 2014. THE OTHER WAS FEBRUARY 1, 2014. BOTH INCIDENTS TOOK PLACE AT LOW SPEEDS. BASICALLY AS I WAS COMING TO A STOP, THE CAR JUST ACCELERATED OUT OF CONTROL. I WAS UNDER 5MPH ON BOTH INCIDENTS. WHAT IT FEELS LIKE IS AS I AM COMING …

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I EXPERIENCED UNINTENDED ACCELERATION TWICE THIS WEEK. THE FIRST INCIDENT TOOK PLACE ON JANUARY 31, 2014. THE OTHER WAS FEBRUARY 1, 2014. BOTH INCIDENTS TOOK PLACE AT LOW SPEEDS. BASICALLY AS I WAS COMING TO A STOP, THE CAR JUST ACCELERATED OUT OF CONTROL. I WAS UNDER 5MPH ON BOTH INCIDENTS. WHAT IT FEELS LIKE IS AS I AM COMING TO A SLOW DOWN THE TRANSMISSION DOES NOT GO DOWN IN GEAR AND JUST THRUSTS AND TAKES OFF. I RAN INTO A HEDGE IN THE PARKING LOT ON THE FEBRUARY 1ST INCIDENT. I WAS ABLE TO APPLY THE BRAKES, BUT NOT IN TIME TO AVOID THE COLLISION WITH THE HEDGE. I DID NOT HAVE MY FOOT ON, OR NEAR THE ACCELERATOR. BOTH TIMES MY FOOT WAS ON THE BRAKE. *TR

NHTSA ODI #10562500

14,000 miles · Jan 28, 2014
Structure

TL* THE CONTACT OWNS A 2012 FIAT 500 SPORT. THE CONTACT STATED THAT WHILE ENTERING THE HIGHWAY AT 20 MPH, THE REAR ROOF WING BECAME DETACHED FROM THE VEHICLE AND FLEW INTO INCOMING TRAFFIC. BOTH THE MANUFACTURER AND THE DEALER WERE UNWILLING TO REMEDY THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 14,000.

NHTSA ODI #10561870

47,433 miles · Jan 15, 2014
Power Train

VEHICLE CLUTCH FAILED TO DISENGAGE. DEALER ADVISED CUSTOMER (ME) PARTS NOT UNDER WARRANTY AND ADVISED FIAT THAT CLUTCH IS WORN OUT. DEALER COMPLETED THE REPAIR; CUSTOMER PAID $940 FOR REPAIR. DEALER INVOICE NOTES: "CLUTCH PRESSURE PLATE SPRING DAMAGE AND DISTORTED" - DAMAGED COMPONENT IS NOT A WEAR-AND-TEAR COMPONENT OF THE C…

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VEHICLE CLUTCH FAILED TO DISENGAGE. DEALER ADVISED CUSTOMER (ME) PARTS NOT UNDER WARRANTY AND ADVISED FIAT THAT CLUTCH IS WORN OUT. DEALER COMPLETED THE REPAIR; CUSTOMER PAID $940 FOR REPAIR. DEALER INVOICE NOTES: "CLUTCH PRESSURE PLATE SPRING DAMAGE AND DISTORTED" - DAMAGED COMPONENT IS NOT A WEAR-AND-TEAR COMPONENT OF THE CLUTCH ASSEMBLY, AND HAS SUFFERED CATASTROPHIC FAILURE, NOT A PROGRESSIVE WEAR. FIAT REFUSES TO REVIEW AND RE-EVALUATE THE CASE. *TR

NHTSA ODI #10560058

40,047 miles · Jan 2, 2014
Fuel/propulsion SystemPower TrainSteering

I WAS DRIVING HOME ON A ROAD FLAT/STRAIGHT ROAD WITH A 50 MPH SPEED LIMIT. I WAS SHIFTING MY GEARS (MANUAL) AS I NOTICED THAT THE LIGHT AHEAD WAS TURNING FROM RED TO GREEN. I COULD NOT GET THE GEAR TO GRASP 3RD. MOREOVER, THE WHEN I TRIED PRESSING THE BRAKE, IT DID NOT FEEL LIKE IT NORMALLY DOES. IT WAS MUCH MORE DIFFICULT TO…

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I WAS DRIVING HOME ON A ROAD FLAT/STRAIGHT ROAD WITH A 50 MPH SPEED LIMIT. I WAS SHIFTING MY GEARS (MANUAL) AS I NOTICED THAT THE LIGHT AHEAD WAS TURNING FROM RED TO GREEN. I COULD NOT GET THE GEAR TO GRASP 3RD. MOREOVER, THE WHEN I TRIED PRESSING THE BRAKE, IT DID NOT FEEL LIKE IT NORMALLY DOES. IT WAS MUCH MORE DIFFICULT TO PUSH THE BRAKE. I WAS REALLY SCARED AND ALMOST HAD AN ACCIDENT. I WAS SOMEHOW ABLE TO COAX MY CAR TO THE SIDE OF THE ROAD. I TURNED THE CAR OFF, AND TURNED IT BACK ON. I FULLY PUSHED THE CLUTCH IN WITH MY LEFT FOOT, BUT WAS UNABLE TO MOVED THE GEAR SHIFT FROM NEUTRAL INTO ANY OF THE GEARS (1ST, 2ND, 3RD, 4TH, 5TH, OR REVERSE). I TURNED THE CAR OFF AGAIN, AT THIS POINT I TOOK MY FOOT OFF THE CLUTCH AND WAS ABLE TO FREELY MORE THE GEAR SHIFT INTO ANY OF THE GEARS. SOMETHING IS TREMENDOUSLY WRONG WITH THIS CAR. IF THIS HAD HAPPENED TO ME ON THE HIGHWAY I COULD HAVE BEEN SERIOUSLY INJURED. THE DEALER HAS SAID THAT THE CLUTCH, BEARINGS, AND PRESSURE PLATE NEEDS TO BE REPLACED. MY CONCERN IS THAT THIS MAY HAPPEN AGAIN TO ME IF THE DEALER REPLACES THE BAD PARTS WITH NEW ('POTENTIALLY DEFECTIVE') PARTS. A RECALL NEEDS TO BE ISSUED. I DO NOT WANT THIS TO HAPPEN TO AGAIN TO ME OR SOMEONE ELSE. *TR

NHTSA ODI #10558127

18,895 miles · Dec 11, 2013
Visibility

FROM CALIFORNIA VISITING FAMILY IN OKLAHOMA. AT THE TIME OF VISIT WE EXPERIENCED A WINTER COLD FRONT THAT BROUGHT ICE RAIN AND SNOW. WENT OUT ON THE MORNING OF THE INCIDENT TO WARM THE CARS IN THE YARD, AND THE TEMPERATURE AT THE TIME WAS 18 DEGREES WIND CHILL, WITH EFFECT WAS 5 DEGREES. STARTED THE CAR AND LET IT WARM UP FOR AB…

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FROM CALIFORNIA VISITING FAMILY IN OKLAHOMA. AT THE TIME OF VISIT WE EXPERIENCED A WINTER COLD FRONT THAT BROUGHT ICE RAIN AND SNOW. WENT OUT ON THE MORNING OF THE INCIDENT TO WARM THE CARS IN THE YARD, AND THE TEMPERATURE AT THE TIME WAS 18 DEGREES WIND CHILL, WITH EFFECT WAS 5 DEGREES. STARTED THE CAR AND LET IT WARM UP FOR ABOUT 15 MINUTES, AND HEAT AND DEFROST WERE NOT TURNED ON AT THE TIME, THEN AFTER 15 MINUTES WENT OUT TO TURN OFF ALL THE VEHICLES. I THEN TURNED OFF THE FIAT AND CLOSE THE DOORS AND TOOK TWO STEPS AWAY FROM CAR AND THE REAR WINDOW EXPLODED OUTWARD. WHEN I WARMED UP THE CAR, NO DEFROSTER WAS TURNED ON OF ANY KIND, I JUST TURNED THE CAR ON SO THE FLUIDS WOULDN'T FREEZE. I CALLED AHEAD OF TIME TO ASK ALL THE APPROPRIATE QUESTIONS BEFORE HEADING OUT TO 45 MINUTES TO THE DEALERSHIP. THEN I TOOK IT IN TO DEALERSHIP TO HAVE IT LOOKED AT, AND WAS TOLD THAT IT WAS NOT COVERED UNDER A STANDARD 12 BY 12 SERVICE CONTRACT WITHOUT INSPECTING THE VEHICLE. THEY DIDN'T DO ANY DIAGNOSTIC TEST LIKE THEY SAID THEY WOULD OVER THE PHONE, THEY ONLY DID A OIL CHANGE THAT I ASKED FOR. THEY TOLD US THAT IT WAS IMPOSSIBLE FOR THIS TO HAPPEN, AND IT COULD ONLY BE CAUSED BY SOME TYPE OF IMPACT. THEY NEVER TOOK OFF THE PLASTIC ON THE WIDOWS THAT WE PUT ON TO HOLD WHAT GLASS THAT WAS LEFT IN PLACE. I CALLED CORPORATE AND TALKED TO SERVICE DEPARTMENT, AND GAVE THEM PERTINENT INFORMATION CONCERNING THE WINDOW. THEY OPEN THE FILE FOR US, AND CHECKED WARRANTIES. THEN I WAS ASKED TO DESCRIBE WHAT HAPPENED, SHE TOOK DOWN THAT INFORMATION, AND THEN WAS PUT ON HOLD, BECAUSE SHE NEED TO CONFER WITH THE TECHNICIANS AT THE DEALERSHIP. AFTER TALKING WITH THE TECHNICIAN, I WAS TOLD BY HER THAT THEY CONCLUDE THAT IT WAS IMPACT RELATED AND COULD NOT BE SERVICE UNDER ANY WARRANTY. WE FOUND ADDITIONAL SITUATIONS ON THE INTERNET ON FIAT WINDOWS EXPLODING. *TR

NHTSA ODI #10555738

25,000 miles · Nov 7, 2013
Electrical SystemVisibility/wiper

AFTER DEALER REPLACED FAULTY REAR MAIN SEAL IN JULY/AUGUST 2013, REAR WIPER BLADE WOULD ACTIVATE WITH CONTROLS IN OFF POSITION, CAUSING ME TO HAVE TO MOVE FRONT WINDSHIELD WIPER CONTROL ARM UP AND DOWN, AND THEN REAR WIPER BLADES WOULD STOP. ALSO THE CAR STARTER WOULD INTERMITTENTLY MAKE A ELECTRICAL NOISE AFTER TURNING THE KEY…

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AFTER DEALER REPLACED FAULTY REAR MAIN SEAL IN JULY/AUGUST 2013, REAR WIPER BLADE WOULD ACTIVATE WITH CONTROLS IN OFF POSITION, CAUSING ME TO HAVE TO MOVE FRONT WINDSHIELD WIPER CONTROL ARM UP AND DOWN, AND THEN REAR WIPER BLADES WOULD STOP. ALSO THE CAR STARTER WOULD INTERMITTENTLY MAKE A ELECTRICAL NOISE AFTER TURNING THE KEY AND THE CAR WOULDN'T START, THEN I HAD TO TURN KEY TWO TO THREE TIMES TO START CAR. AFTER TWO MONTHS WITH ABOVE, IN COLD WEATHER BELOW 35 DEGREES THE STEREO, CD PLAYER, BLUEME SYSTEMS WON'T WORK! IT ONLY STARTS TO WORK AFTER THE CAR AND SURROUNDING ENVIRONMENT REACHES 40-45 DEGREES. CALLED INTO DEALER AND HAVE APPOINTMENT FOR CHECKING ALL AND REPAIR/REPLACE COMPONENTS NOT WORKING PROPERLY AND SAFELY. *TR

NHTSA ODI #10551414

3,500 miles · Oct 31, 2013
Air BagsElectrical SystemVehicle Speed Control

AIR BAG LIGHTS ARE NOT SHOWING ON THE INSTRUMENT CLUSTER THE AIRBAGS ARE NOT WORKING! *TR

NHTSA ODI #10550428

45,000 miles · Oct 18, 2013
Electrical SystemFuel System, Gasoline

REPORTED ELECTRICAL BURNING SMELL THRU VENTILATION SYSTEM. DEALERSHIP DENIED ELECTRICAL BURNING BUT FOUND GAS PUNCTURE IN PLASTIC GAS TANK, SAYS SMELL IS FROM BURNING GAS. (OWNER DISAGREES) HOWEVER WITH NO OTHER SUSPENSION OR BODY DAMAGE FOUND EXCEPT THE GAS TANK PUNCTURE THERE IS GREAT CONCERN THAT THIS IS A SERIOUS DANGEROUS…

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REPORTED ELECTRICAL BURNING SMELL THRU VENTILATION SYSTEM. DEALERSHIP DENIED ELECTRICAL BURNING BUT FOUND GAS PUNCTURE IN PLASTIC GAS TANK, SAYS SMELL IS FROM BURNING GAS. (OWNER DISAGREES) HOWEVER WITH NO OTHER SUSPENSION OR BODY DAMAGE FOUND EXCEPT THE GAS TANK PUNCTURE THERE IS GREAT CONCERN THAT THIS IS A SERIOUS DANGEROUS DESIGN FLAW. THAT THE TANK CAN BE PUNCTURED SO EASILY WITHOUT THE KNOWLEDGE OF DRIVER OF ANY EVENT. *TR

NHTSA ODI #10548386

150 miles · Oct 10, 2013
EnginePower Train

WHEN I AM DRIVING AND I AM START SLOWING DOWN FOR A LIGHT BEFORE IT GET TO A FULL STOP THE TRANSMISSION DOWN SHIFT TO QUICK THAT MAKES THE CAR JERK, I STOP AND WAIT FOR THE LIGHT TO CHANGE AND IT DOWNSHIFT BY ITSELF, IT FEELS LIKE SOMEBODY IS HITTING YOU ON THE REAR OF THE CAR BUT NOBODY IS THERE .I BROUGHT THE CAR SEVERAL TIMES…

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WHEN I AM DRIVING AND I AM START SLOWING DOWN FOR A LIGHT BEFORE IT GET TO A FULL STOP THE TRANSMISSION DOWN SHIFT TO QUICK THAT MAKES THE CAR JERK, I STOP AND WAIT FOR THE LIGHT TO CHANGE AND IT DOWNSHIFT BY ITSELF, IT FEELS LIKE SOMEBODY IS HITTING YOU ON THE REAR OF THE CAR BUT NOBODY IS THERE .I BROUGHT THE CAR SEVERAL TIMES TO THE DEALER BUT BECAUSE IT DOES NOT HAPPEN ALL THE TIME NOTHING THEY COULD DO ABOUT IT. ONE OF THE TIMES THAT I WAS AT THE DEALER IT HAPPENED. I PUT THE CAR IN REVERSE, DROVE IT FOR 10 FEET AND THEN SHIFTED TO FORWARD AND THE TRANSMISSION WOULD NOT DO ANYTHING FOR 3 TO 4 SECONDS THEN A JUMP (SHIFTED TO 1ST GEAR) I WAS WITH THE PERSON WHO MAKES THE APPOINTMENTS SO HE TOLD ME TO BRING THE CAR NEXT DAY. NEXT DAY THEY DROVE IT AND THE CAR WOULD SHIFT FINE SO NOTHING WAS FIXED. LAST WEEK, I TOLD THEN TO KEEP THE CAR AND LET THE FOREMAN TO DRIVE IT HOME SO HE WOULD FEEL WHAT IT WAS HAPPENING, HE TOLD ME THAT IT HAPPENED ONCE BUT ON DOWNSHIFT AND THAT COULD BE A COMPUTER PROGRAM AND I HAVE TO WAIT UNTIL FIAT DEVELOP A NEW PROGRAM. THEY TRIED EVERYTHING THAT THEY KNOW AND THE FINAL SOLUTION WAS THE WAY THAT I DRIVE OR THE COMPUTER HAVE TO ADJUST WHEN I CHANGE MY DRIVING FROM THE HIGHWAY TO THE CITY I THING IS A LOT OF BS I DRIVE 120 MILES DAILY TO WORK AND I AM WORRY THAT THE DOWNSHIFT WILL HAPPEN WHEN I AM DRIVING ON HIGHWAY SPEED AND OF COURSE THEY TOLD ME THAT THE DOWNSHIFT WILL NOT HAPPEN ON HIGHER SPEED EVEN THAT THEY SAID THEY DO NOT KNOW WHY I KEEP BRINGING THE CAR WITH THE SAME TRANSMISSION PROBLEM. PLEASE HELP ME TO RESOLVE THIS PROBLEM BECAUSE EVEN THE CAR FOLDS ON THE LEMON LAW STILL I HAVE TO MAKES THE PAYMENTS. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #10547474

Official recalls

3

19V817000 · Power Train:automatic Transmission; Power Train:automatic Transmission:lever And Linkage:floor Shift

Nov 15, 2019

Chrysler (FCA US LLC) is recalling certain 2012-2013 Fiat 500 vehicles equipped with 6-speed automatic transmissions. The shifter cable bushing may fail allowing the cable to detach from the transmission.

Consequence & remedy

Consequence: If the shifter cable detaches from the transmission, the transmission may not shift into the gear selected by the driver. Additionally, despite selecting PARK with the shifter, the vehicle may roll away. These scenarios may increase the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will replace the shifter cable adjuster, free of charge. The recall began January 9, 2020. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is VB4.

Additional source detail variants (2)

Power Train:automatic Transmission:lever And Linkage:floor Shift

Chrysler (FCA US LLC) is recalling certain 2012-2013 Fiat 500 vehicles equipped with 6-speed automatic transmissions. The shifter cable bushing may fail allowing the cable to detach from the transmission.

Consequence: If the shifter cable detaches from the transmission, the transmission may not shift into the gear selected by the driver. Additionally, despite selecting PARK with the shifter, the vehicle may roll away. These scenarios may increase the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will replace the shifter cable adjuster, free of charge. The recall began January 9, 2020. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is VB4.

Power Train:automatic Transmission

Chrysler (FCA US LLC) is recalling certain 2012-2013 Fiat 500 vehicles equipped with 6-speed automatic transmissions. The shifter cable bushing may fail allowing the cable to detach from the transmission.

Consequence: If the shifter cable detaches from the transmission, the transmission may not shift into the gear selected by the driver. Additionally, despite selecting PARK with the shifter, the vehicle may roll away. These scenarios may increase the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will replace the shifter cable adjuster, free of charge. The recall began January 9, 2020. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is VB4.

16V302000 · Power Train:manual Transmission

May 16, 2016

Chrysler (FCA US LLC) is recalling certain model year 2012-2016 Fiat 500 vehicles manufactured June 21, 2010, through January 12, 2016, equipped with a manual transmission. The clutch diaphragm spring may fracture and fail, causing an inability to switch gears.

Consequence & remedy

Consequence: If the clutch diaphragm spring fails, the driver may not be able to shift gears or the vehicle may lose motive power, increasing the risk of a crash.

Remedy: The remedy for this recall will include the installation of a clutch pedal limiter and a clutch pedal switch. The recall began on November 10, 2016. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is S34.

11V550000 · Service Brakes, Hydraulic:fluid

Nov 10, 2011

CHRYSLER IS RECALLING CERTAIN MODEL YEAR 2012 DODGE JOURNEY AND FIAT 500 VEHICLES MANUFACTURED FROM OCTOBER 24, 2011, THROUGH OCTOBER 26, 2011. SOME VEHICLES WERE ASSEMBLED WITH CONTAMINATED BRAKE FLUID AND MAY EXPERIENCE A DEGRADATION OF THE SEALING COMPONENTS WITHIN THE BRAKE SYSTEM.

Consequence & remedy

Consequence: THIS COULD LEAD TO LOSS OF BRAKING ABILITY INCREASING THE RISK OF A CRASH.

Remedy: CHRYSLER WILL NOTIFY OWNERS AND REPLACE ALL BRAKE COMPONENTS THAT COME IN CONTACT WITH HYDRAULIC BRAKE FLUID. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 1, 2012. 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.