NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
395 reports60,000 miles · Mar 25, 2016
Power Train
VEHICLE HAS A MANUAL TRANSMISSION. WITHOUT WARNING, DURING NORMAL DRIVING CONDITIONS ON A CITY STREET, IT BECAME IMPOSSIBLE TO SHIFT GEARS. THE CAR HAD TO BE TOWED TO A REPAIR SHOP (FIAT DEALER) WHERE IT WAS DISCOVERED THE FLYWHEEL, CLUTCH PRESSURE PLATE, AND CLUTCH BEARING WERE BROKEN AND HAD TO BE REPLACED. COST FOR THE REPA…
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VEHICLE HAS A MANUAL TRANSMISSION. WITHOUT WARNING, DURING NORMAL DRIVING CONDITIONS ON A CITY STREET, IT BECAME IMPOSSIBLE TO SHIFT GEARS. THE CAR HAD TO BE TOWED TO A REPAIR SHOP (FIAT DEALER) WHERE IT WAS DISCOVERED THE FLYWHEEL, CLUTCH PRESSURE PLATE, AND CLUTCH BEARING WERE BROKEN AND HAD TO BE REPLACED. COST FOR THE REPAIR WAS $1612.00
NHTSA ODI #10851625
46,000 miles · Mar 24, 2016
Power Train
I WAS DRIVING IN 3RD GEAR (MANUAL TRANS) AND TRIED TO SHIFT TO 4TH. THE SHIFT KNOB POPPED OUT OF 3RD FINE, BUT THEN WOULD NOT GO INTO 4TH. WHEN I TRIED TO GO BACK INTO 3RD IT WOULDN'T ENGAGE. I ENDED UP NEEDING TO SHIFT INTO 2ND WHEN THE CAR LOST MOMENTUM, IT WOULD NOT ENGAGE IN THIS GEAR EITHER, OR 1ST. I HAD TO TURN QUICKL…
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I WAS DRIVING IN 3RD GEAR (MANUAL TRANS) AND TRIED TO SHIFT TO 4TH. THE SHIFT KNOB POPPED OUT OF 3RD FINE, BUT THEN WOULD NOT GO INTO 4TH. WHEN I TRIED TO GO BACK INTO 3RD IT WOULDN'T ENGAGE. I ENDED UP NEEDING TO SHIFT INTO 2ND WHEN THE CAR LOST MOMENTUM, IT WOULD NOT ENGAGE IN THIS GEAR EITHER, OR 1ST. I HAD TO TURN QUICKLY ONTO A SIDE STREET IN ORDER TO NOT GET HIT FROM BEHIND. WITH THE CAR ON, IN NEUTRAL, AND STATIONARY, IT WOULD NOT SHIFT INTO ANY GEAR (WITH THE CLUTCH PRESSED DOWN). IT FELT LIKE IT JUST BOUNCED OUT OF GEAR WITHOUT IT EVER ENGAGING. WITH THE CAR OFF, THE SHIFTER WOULD ENGAGE FINE - IN ANY GEAR. FROM WHAT I'VE READ ON MULTIPLE FIAT FORUMS, THIS IS A REOCCURRING PROBLEM FOR MANY. MY CAR HAS APPROXIMATELY 46,000MILES, AND NOT HAD ANY MAJOR ISSUES THUS FAR, WITH THE ENGINE AND BODY ARE IN GREAT CONDITION. - HTTP://WWW.FIAT500OWNERS.COM/FORUM/8-FIAT-500-GENERAL-DISCUSSION-FORUM/81033-WONT-ABLE-SHIFT-GEARS.HTML ---- HTTP://WWW.FIAT500OWNERS.COM/FORUM/8-FIAT-500-GENERAL-DISCUSSION-FORUM/27713-STIFF-CLUTCH-CAR-WONT-SHIFT-INTO-GEAR-GETTING-SICK-ALL-THESE-ISSUES.HTML ----
NHTSA ODI #10851488
43,000 miles · Mar 11, 2016
Power Train
THE CLUTCH GAVE OUT IN RUSH HOUR TRAFFIC AS I WAS DOWNSHIFTING TO ENTER A TRAFFIC CIRCLE. THE CLUTCH PEDAL BECAME STIFF AND I WAS ABLE TO GET THE CAR INTO NEUTRAL, BUT COULD NOT PUT THE CAR BACK IN GEAR, OR DEPRESS THE CLUTCH PEDAL FULLY. ACCORDING TO THE MECHANIC, THE PRESSURE PLATE CRACKED DUE TO IT BEING MANUFACTURED WITH LO…
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THE CLUTCH GAVE OUT IN RUSH HOUR TRAFFIC AS I WAS DOWNSHIFTING TO ENTER A TRAFFIC CIRCLE. THE CLUTCH PEDAL BECAME STIFF AND I WAS ABLE TO GET THE CAR INTO NEUTRAL, BUT COULD NOT PUT THE CAR BACK IN GEAR, OR DEPRESS THE CLUTCH PEDAL FULLY. ACCORDING TO THE MECHANIC, THE PRESSURE PLATE CRACKED DUE TO IT BEING MANUFACTURED WITH LOW-QUALITY METAL. THE CAR HAS ONLY 43,000 MILES ON IT.
NHTSA ODI #10846116
58,249 miles · Feb 29, 2016
Electrical SystemPower TrainService Brakes
"TAKATA RECALL" MECHANICAL DEFECT HAS BEEN DETECTED. MY CAR WAS ON THE HIGHWAY WHEN SUDDENLY IT RANDOMLY BEGAN STATING TO "CHECK TRANSMISSION SEE HANDBOOK." I TOOK IT TO A FIAT DEALERSHIP IN WHICH I IMMEDIATELY ADVISED THEM OF THE DIAGNOSIS CODE P0741 HAD BEEN PROVIDED TO THEM AT DROP OFF BEFORE ANY WORK WAS PERFORMED - TONY …
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"TAKATA RECALL" MECHANICAL DEFECT HAS BEEN DETECTED. MY CAR WAS ON THE HIGHWAY WHEN SUDDENLY IT RANDOMLY BEGAN STATING TO "CHECK TRANSMISSION SEE HANDBOOK." I TOOK IT TO A FIAT DEALERSHIP IN WHICH I IMMEDIATELY ADVISED THEM OF THE DIAGNOSIS CODE P0741 HAD BEEN PROVIDED TO THEM AT DROP OFF BEFORE ANY WORK WAS PERFORMED - TONY (THE SERVICE ADVISOR) SAID THAT WAS NOT HELPFUL COULD MEAN ANYTHING. (DIAGNOSIS MEANS: TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR STUCK OFF) I WAS ADVISED NUMBERS LIES AND WAS TOLD I NEEDED A NEW TRANSMISSION. TURNS OUT THERE IS A FAULT IN THE WIRING OF THE SYSTEM AND COMPUTER WHICH IS NOW CAUSING CAR TO NOT STAY IN GEAR. I WANT TO RAISE ALL AWARENESS TO THIS ISSUE. ESPECIALLY SINCE THE PURCHASE OF THIS CAR (ONLY 58K IN MILEAGE) I HAVE HAD TO PERSONALLY REPLACE THE FOLLOWING: NUMBER OF RADIATOR REPAIRS: 2 SUNROOF: 1 TRANSMISSION: FAULTY MECHANICAL ERROR TOTAL TUNE UPS: 2 BRAKE INSTALLMENTS: 3 I WAS NOT MADE AWARE OF ANY PRIOR ISSUES BEFORE PURCHASE ALL ISSUES HAVE OCCURRED DUE TO MANUFACTURE NEGLIGENCE! NO ACCIDENTS HAVE OCCURRED. PLEASE ASSIST ME IN ANY WAY POSSIBLE.
NHTSA ODI #10839085
26,000 miles · Feb 11, 2016
Power Train
TL* THE CONTACT OWNS A 2012 FIAT 500 ABARTH. WHILE DRIVING APPROXIMATELY 55 MPH, THE CLUTCH FAILED AND PREVENTED THE TRANSMISSION FROM SHIFTING OUT OF GEAR. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE CLUTCH PRESSURE PLATE WOULD NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIF…
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TL* THE CONTACT OWNS A 2012 FIAT 500 ABARTH. WHILE DRIVING APPROXIMATELY 55 MPH, THE CLUTCH FAILED AND PREVENTED THE TRANSMISSION FROM SHIFTING OUT OF GEAR. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE CLUTCH PRESSURE PLATE WOULD NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 26,000.
NHTSA ODI #10825574
36,000 miles · Feb 9, 2016
Fuel/propulsion System
AT ABOUT 33,000 MILES THE FUEL ROLLOVER VALVE FAILED MAKING IT DIFFICULT TO PUMP FUEL INTO MY TANK AND AT TIMES CAUSING FUEL TO SPILL FROM THE FILLER TUBE. THE VALVE IS NOT REPLACEABLE SO THE ENTIRE FUEL TANK WAS REPLACED UNDER WARRANTY. ABOUT 3,200 MILES LATER THE ROLLOVER VALVE FAILED AGAIN. EVEN THOUGH THE TANK ONLY HAD A FEW…
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AT ABOUT 33,000 MILES THE FUEL ROLLOVER VALVE FAILED MAKING IT DIFFICULT TO PUMP FUEL INTO MY TANK AND AT TIMES CAUSING FUEL TO SPILL FROM THE FILLER TUBE. THE VALVE IS NOT REPLACEABLE SO THE ENTIRE FUEL TANK WAS REPLACED UNDER WARRANTY. ABOUT 3,200 MILES LATER THE ROLLOVER VALVE FAILED AGAIN. EVEN THOUGH THE TANK ONLY HAD A FEW THOUSAND MILES ON IT FIAT/CHRYSLER REFUSED TO WARRANTY THE REPLACEMENT TANK DUE TO THE CAR ITSELF BEING OUT OF NEW CAR WARRANTY BY A FEW MONTHS. I REFUSED REPLACEMENT OF THE SECOND TANK AT MY EXPENSE. THERE ARE A LOT OF DETAILS, DISCUSSIONS, AND A PROMISE BROKEN BY FIAT/CHRYSLER THAT ARE MISSING HERE BECAUSE OF AVAILABLE CHARACTERS TO TYPE. SIMPLY PUT THOUGH, FIAT ADMITS HAVING A ROLLOVER VALVE PROBLEM. MY RESEARCH SHOWS THAT MANY OWNERS EXPERIENCING THE PROBLEM BELIEVE IT IS CAUSED BY THE FUEL PUMP NOZZLE ITSELF SO THEY HAVE NOT COMPLAINED TO FIAT. ONE OF THE 3 DEALERS I SPOKE WITH MENTIONED THEY ARE HAVING TO REPLACE TANKS BECAUSE OF THE ROLLOVER VALVE THAT "STICKS". UPON CHECKING THE VALVE MYSELF I SAW NO EVIDENCE OF STICKING YET SOMETHING WAS BLOCKING FUEL FROM COMING IN. IS IT SO SENSITIVELY CALIBRATED THAT ONE CAN'T ACTUALLY TELL IF IT WORKS WITHOUT SPECIAL MEASURING TOOLS? HOW DOES FIAT SERVICE TEST IT? IF IT IS STICKING CLOSED, CAN IT STICK OPEN RENDERING THE ROLLOVER SAFETY COMPLETELY INEFFECTIVE? REGARDLESS, THIS VALVE WAS DESIGNED NOT TO FAIL, OTHERWISE IT WOULD REQUIRE AN INEXPENSIVE REPLACEABLE PART RATHER THAN A $800.00 FUEL TANK REPLACEMENT. I ALSO CONTEND, THAT, FOR IT TO CEASE TO OPERATE CORRECTLY AFTER JUST A FEW THOUSAND MILES (DO THE MATH) A GOOD INDICATION IS THAT IT WAS DEFECTIVE WHEN INSTALLED. BUT FIAT REFUSES TO BEAR ANY RESPONSIBILITY. FINALLY, THIS IS NOT A NEW PROBLEM WITH CHRYSLER. I BELIEVE EXTENDED LIFETIME WARRANTIES EXIST FOR RAM TRUCKS AND OTHER DODGE VEHICLES FROM ABOUT 2003 TO 2007 FOR A SIMILAR PART.
NHTSA ODI #10825196
36,000 miles · Feb 1, 2016
Power Train
AT ABOUT 36,000 MILES IT BECAME DIFFICULT TO CHANGE GEARS AND THEN SHIFTER SUDDENLY BECAME IMPOSSIBLE TO CONTROL WHILE ON THE ROAD. GOT OFF THE ROAD AND CAR WOULD NOT GO INTO FIRST GEAR, AND WHEN TRYING TO REVERSE IT MADE A HORRIBLE GRINDING SOUND. CAR WAS IMMOBILE. TURNS OUT THAT SOME 2012 FIATS HAVE BEEN REPORTED TO HAVE FAULT…
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AT ABOUT 36,000 MILES IT BECAME DIFFICULT TO CHANGE GEARS AND THEN SHIFTER SUDDENLY BECAME IMPOSSIBLE TO CONTROL WHILE ON THE ROAD. GOT OFF THE ROAD AND CAR WOULD NOT GO INTO FIRST GEAR, AND WHEN TRYING TO REVERSE IT MADE A HORRIBLE GRINDING SOUND. CAR WAS IMMOBILE. TURNS OUT THAT SOME 2012 FIATS HAVE BEEN REPORTED TO HAVE FAULTY PRESSURE PLATES INSTALLED. DEALERSHIP SAID IT WAS MY PRESSURE PLATE AND QUOTED A PRICE OF 1100+ AS THEY SAID CLUTCH IS NOT COVERED UNDER WARRANTY. I FOUGHT THAT AND FIAT CHRYSLER CORPORATION ENDED UP PAYING FOR THE NEW CLUTCH ASSEMBLY. A PHOTO OF PRESSURE PLATE WERE EMAILED BY DEALER WITH THE NOTE: AS YOU CAN SEE HERE IN THE PICTURE THE FINGERS FOR THE PRESSURE PLATE ARE BENT IN 3 PLACES CAUSING THE ISSUE YOU ARE EXPERIENCING. THE GOOD NEWS IS I HAVE SPOKEN WITH ERICKA FROM FIAT CHRYSLER HEADQUARTERS AND THIS WILL BE WARRANTIED BY THEM AT NO COST TO YOU FOR THE PARTS, LABOR OR RENTAL.
NHTSA ODI #10823363
60,000 miles · Jan 15, 2016
Power Train
WHILE IN MOTION (1ST GEAR) AND ABOUT TO SHIFT INTO SECOND THE CLUTCH BECAME COMPLETELY FROZEN AND THE SHIFT LEVER WAS UNABLE TO MOVE GEARS. THIS WAS WHILE IN TRAFFIC. THE VEHICLE HAD TO BE SHUT DOWN IN ORDER FOR THE SHIFTER TO BE PUT INTO NEUTRAL. THE VEHICLE HAS 60,000 MILES ON IT. NO PREVIOUS CLUTCH ISSUES WERE APPARENT.THE SE…
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WHILE IN MOTION (1ST GEAR) AND ABOUT TO SHIFT INTO SECOND THE CLUTCH BECAME COMPLETELY FROZEN AND THE SHIFT LEVER WAS UNABLE TO MOVE GEARS. THIS WAS WHILE IN TRAFFIC. THE VEHICLE HAD TO BE SHUT DOWN IN ORDER FOR THE SHIFTER TO BE PUT INTO NEUTRAL. THE VEHICLE HAS 60,000 MILES ON IT. NO PREVIOUS CLUTCH ISSUES WERE APPARENT.THE SERVICE ADVISOR TOLD US IT WAS A FAILURE OF THE CLUTCH PRESSURE PLATE AND CONSEQUENTLY THE SLAVE CYLINDER. WE WERE TOLD THAT THE CLUTCH WAS NOT WORN BEYOND NORMAL WEAR AND TEAR FOR THE MILEAGE SO THIS WAS NOT CAUSED BY USER ERROR BUT DEFECTIVE PRESSURE PLATE. WE WERE TOLD THAT BECAUSE THE TRANSMISSION WAS OUT WE MIGHT AS WELL REPLACE THE CLUTCH BUT IT WAS NOT REQUIRED. TOTAL REPAIR COST WAS $1030.00 INCLUDING THE PRESSURE PLATE, SLAVE CYLINDER, CLUTCH AND LABOR. THIS ISSUE HAS OCCURRED ON NUMEROUS 2012 FIAT 500'S BASED UPON OTHER OWNERS. THIS IS A SEVERE SAFETY HAZARD FROM A DEFECTIVE PART. THE NEW PART HAS A NEW PART NUMBER BUT I WAS TOLD THIS HAS NO RELATION TO PRESSURE PLATE UPDATES EVEN THOUGH NEWER 500'S DON'T SEEM TO HAVE THE ISSUE. ALSO NOTICED WAS THE CARS CLUTCH FEELS COMPLETELY DIFFERENT THAN IT DID UPON PURCHASE OF THE VEHICLE IN 2012 THROUGH PRIOR TO THE REPAIR. NOW THE CLUTCH PEDAL EXHIBITS A COMPLETELY LOOSE FEELING WITHOUT TENSION AS IT DID THE PAST 4 YEARS.
NHTSA ODI #10820538
69,000 miles · Dec 17, 2015
Service Brakes
DRIVING DOWN THE HIGHWAY WITH MY CRUISE CONTROL ON, AND ALL OF A SUDDEN MY EMERGENCY BRAKE LIGHT CAME ON AND THE BRAKES WERE APPLIED AND CANCELLED THE CRUISE CONTROL. THERE WAS NOTHING AROUND MY EMERGENCY BRAKE. I PULLED OVER TO PULL IT AND MAKE SURE NOTHING WAS MAKING IT BE ENGAGED. DROVE ON HOME WITH NO OTHER PROBLEMS.
NHTSA ODI #10810854
25,000 miles · Dec 11, 2015
Electrical System
TL* THE CONTACT OWNS A 2012 FIAT 500. WHILE DRIVING AT A LOW SPEED, THE INSTRUMENT CLUSTER, INCLUDING THE LIGHTS, GAUGES, AND METERS, FAILED TO FUNCTION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 25,000.
NHTSA ODI #10809669
Official recalls
3Nov 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.
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.
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
1EA19001 · 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.