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2021 Jeep Gladiator

Owner reports · Recalls · Investigations

More warning signs than most Gladiator years

Owner complaints for the 2021 Jeep Gladiator are substantially higher than the model-year median of 23.

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When problems were reported

Mileage at the reported incident

Limited mileage data: 46 of 290 reports include usable mileage. There isn’t enough coverage to show a useful chart.

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 94 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 70 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

7 crash reports3 fire reports6 injury reports

Electrical System complaints

45 reports
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10,000 miles · Sep 12, 2022
Electrical System

The contact owns a 2021 Jeep Gladiator. The contact stated that on two separate occasions the vehicle failed to immediately start while pressing the start button. The contact indicated that while attempting to start the vehicle, there were several unknown warning lights illuminated and the vehicle failed to start. The contact st…

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The contact owns a 2021 Jeep Gladiator. The contact stated that on two separate occasions the vehicle failed to immediately start while pressing the start button. The contact indicated that while attempting to start the vehicle, there were several unknown warning lights illuminated and the vehicle failed to start. The contact stated that after several more attempts the vehicle started and operated as designed. The vehicle was taken to the dealer who was unable to duplicate the failure. The manufacturer was notified of the failure. The failure mileage was 10,000.

NHTSA ODI #11484082

Mileage unknown · Feb 21, 2022
Electrical SystemPower TrainSteering

1. Major electrical system intermittent failures, each incident progressively longer lasting and various malfunction warning lights/messages displayed in dash. 2. Loss of power steering while driving on three separate occasions within a 40 day period. First incident was loss of steering for only a few seconds. Second incident v…

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1. Major electrical system intermittent failures, each incident progressively longer lasting and various malfunction warning lights/messages displayed in dash. 2. Loss of power steering while driving on three separate occasions within a 40 day period. First incident was loss of steering for only a few seconds. Second incident vehicle had to beame shut off and on multiple times before the computer reset and the vehicle drove fine. Third incident was catstrophic loss of electrical the system while driving, vehicle was pulled into middle turn lane where the engine died and would not start. Vehicle unable to start, shift, display hazard warning indicators etc. Vehicle displayed many errors and stated due to safety it would not be allowed to start without servicing. 3. Jeep has been at dealer three times. First incident, electrical malfunctioning was blamed on power step installation. Second incident was blamed on loose ground wire in engine bay. Third incident has yet to be determined by dealer. Vehicle is still at dealer, and there were approximately 73 computer DTC's pulled by the technicians that I was informed of. 4. Many various warning lamps and messages appeared on dash. Everything from shifter, engine, power steering, 4WD, no bus error, TPMS, electronic stability control, anti lock brakes, airbag system etc. These errors flickered on and off randomly before moving to next error displayed.

NHTSA ODI #11453209

Mileage unknown · Jan 14, 2022
Electrical SystemEngine

The vehicle auto starts when the AC is turned on with the Auto HAVC set to off. The owner’s manual states that “the engine will start automatically when” the “Actual cabin temperature is significantly different than temperature set on Auto HVAC.” The vehicle is operating in direct conflict with owner’s manual. This auto start is…

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The vehicle auto starts when the AC is turned on with the Auto HAVC set to off. The owner’s manual states that “the engine will start automatically when” the “Actual cabin temperature is significantly different than temperature set on Auto HVAC.” The vehicle is operating in direct conflict with owner’s manual. This auto start issue poses a serious safety hazard as the vehicle will unexpectedly start and may begin to roll when the driver is not ready. Additionally, if someone is operating on or under the vehicle, it will result in a serious injury or the loss of a finger when the vehicle auto starts in violation of the driver’s intent. The unexpected / wanted start could cause a collision with another vehicle or pedestrian leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447541

Mileage unknown · Jan 14, 2022
Electrical SystemEngine

The vehicle auto starts when the fan is turned on without the AC. The owner’s manual does not list this as one of the “Conditions that will cause the engine to start automatically”. The vehicle is operating in direct conflict with owner’s manual. This auto start issue poses a serious safety hazard as the vehicle will unexpectedl…

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The vehicle auto starts when the fan is turned on without the AC. The owner’s manual does not list this as one of the “Conditions that will cause the engine to start automatically”. The vehicle is operating in direct conflict with owner’s manual. This auto start issue poses a serious safety hazard as the vehicle will unexpectedly start and may begin to roll when the driver is not ready. Additionally, if someone is operating on or under the vehicle, it will result in a serious injury or the loss of a finger when the vehicle auto starts in violation of the driver’s intent. The unexpected / wanted start could cause a collision with another vehicle or pedestrian leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447539

Mileage unknown · Jan 14, 2022
Electrical SystemEngineService Brakes

The vehicle auto starts when the brake pedal is pressed. The owner’s manual does not list this as one of the “Conditions that will cause the engine to start automatically”. The vehicle is operating in direct conflict with owner’s manual. This auto start issue poses a serious safety hazard as the vehicle will unexpectedly start a…

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The vehicle auto starts when the brake pedal is pressed. The owner’s manual does not list this as one of the “Conditions that will cause the engine to start automatically”. The vehicle is operating in direct conflict with owner’s manual. This auto start issue poses a serious safety hazard as the vehicle will unexpectedly start and begin to roll when the driver is not ready. Additionally, if someone is operating on or under the vehicle, it will result in a serious injury or the loss of a finger when the vehicle auto starts in violation of the driver’s intent. The unexpected / wanted start could cause a collision with another vehicle or pedestrian leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel at 2 Jeep dealerships, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447535

Mileage unknown · Jan 14, 2022
Electrical SystemEngine

The vehicle auto starts when opening the driver’s door. This is not listed under “Conditions that will cause the engine to start automatically while in STOP/START AUTO STOP ACTIVE mode” in the owner’s manual. Other Jeep models do not auto start upon opening the driver’s door. This auto start issue poses a serious safety hazard a…

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The vehicle auto starts when opening the driver’s door. This is not listed under “Conditions that will cause the engine to start automatically while in STOP/START AUTO STOP ACTIVE mode” in the owner’s manual. Other Jeep models do not auto start upon opening the driver’s door. This auto start issue poses a serious safety hazard as the vehicle will unexpectedly start and begin to roll when the driver’s door is open and the driver is not properly secure in the driver seat. The unexpected / wanted start could cause a collision with another vehicle or pedestrian leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel at 2 Jeep dealerships, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447533

Mileage unknown · Jan 14, 2022
Air BagsElectrical SystemEngine

The failure of the vehicle’s safety condition check for an empty driver’s seat for an auto stop indicates that the “Occupant Restraint Controller (ORC)” and/or the “Advanced Front Air Bag system” are not receiving proper information. This creates a serious safety hazard as the front air bags may not deploy or may not “adjust the…

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The failure of the vehicle’s safety condition check for an empty driver’s seat for an auto stop indicates that the “Occupant Restraint Controller (ORC)” and/or the “Advanced Front Air Bag system” are not receiving proper information. This creates a serious safety hazard as the front air bags may not deploy or may not “adjust the inflation rate of the Advanced Front Air Bags” as specified in the owner’s manual. For driver safety, these systems and their associated sensors should be fully examined and tested. The vehicle auto stops when the driver’s seat is not occupied, in direct conflict with owner’s manual. The owner’s manual specifically states that if the “Driver’s seat is not occupied” that the “engine will not stop.” Note that this system safety check is separate and distinct from the “Driver’s seat belt is not buckled” check. The vehicle fails to properly check for the empty driver’s seat safety condition before initiating an auto stop. The associated auto stop malfunction was reproduced and confirmed by multiple service personnel at 2 Jeep dealerships, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“, despite the vehicle operating in violation of the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447530

Mileage unknown · Jan 14, 2022
Electrical SystemEngineSeats

The vehicle auto stops when the driver’s seat is not occupied, in direct conflict with owner’s manual. The owner’s manual specifically states that if the “Driver’s seat is not occupied” that the “engine will not stop.” Note that this system safety check is separate and distinct from the “Driver’s seat belt is not buckled” check.…

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The vehicle auto stops when the driver’s seat is not occupied, in direct conflict with owner’s manual. The owner’s manual specifically states that if the “Driver’s seat is not occupied” that the “engine will not stop.” Note that this system safety check is separate and distinct from the “Driver’s seat belt is not buckled” check. Furthermore, the instrument cluster never presents a “STOP/START READY” message which is the first necessary condition for an auto stop. The vehicle fails to properly check for the empty driver’s seat safety condition before auto stop. This auto stop violates Jeep’s published safety check condition and poses a serious safety hazard. This issue poses additionally serious safety hazards as the vehicle will shut off with the driver outside the vehicle, leaving the driver with an incorrect understanding that the vehicle is properly locked out from an auto start condition. Therefore, if the driver is operating on or under the vehicle with it auto stopped, the passenger can unintendedly auto start the vehicle resulting in a serious injury or the loss of a finger. Additionally, in thinking that the vehicle is off the driver may leave the vehicle unattended in their garage and after 5 minutes the vehicle will auto start filling the garage / house with toxic fumes and presenting a serious life-threatening fire hazard. The malfunction was reproduced and confirmed by multiple service personnel, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447525

Mileage unknown · Jan 14, 2022
Electrical SystemEngineFuel/propulsion System

The vehicle auto stops when the hood is closed and the driver remains in the seat with the seat belt buckled. The owner’s manual specifies that an open hood will prevent an auto stop, but preventing the auto stop is the opposite of closing the hood initiating the event. Furthermore, the instrument cluster never presents a “STOP…

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The vehicle auto stops when the hood is closed and the driver remains in the seat with the seat belt buckled. The owner’s manual specifies that an open hood will prevent an auto stop, but preventing the auto stop is the opposite of closing the hood initiating the event. Furthermore, the instrument cluster never presents a “STOP/START READY” message which is the first necessary condition for an auto stop. This issue creates a serious safety hazard, as the vehicle presents incorrect information to the driver and the vehicle unexpectedly stops which confuses and distracts the driver. Additionally, after jump starting another vehicle, the vehicle’s battery may be sufficiently depleted. Upon closing the hood, the vehicle could auto stop, and with the numerous other malfunctions impacting the auto stop system the vehicle may not be able to restart possibly leaving the driver stranded. The unexpected / wanted auto stop could cause a rear-end collision of the stranded vehicle leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447522

Mileage unknown · Jan 14, 2022
Electrical SystemEngine

The vehicle auto stops when turning down or turning off the climate controls, in direct conflict with owner’s manual. This condition is not listed as one of the three conditions to activate an auto stop in the owner’s manual. This condition is also not listed as one of the conditions that will inhibit the vehicle from an auto st…

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The vehicle auto stops when turning down or turning off the climate controls, in direct conflict with owner’s manual. This condition is not listed as one of the three conditions to activate an auto stop in the owner’s manual. This condition is also not listed as one of the conditions that will inhibit the vehicle from an auto stop in the owner’s manual. Furthermore, the instrument cluster never presents a “STOP/START READY” message which is the first necessary condition for an auto stop. This issue creates a serious safety hazard, as the vehicle presents incorrect information to the driver and the vehicle unexpectedly stops in traffic which confuses and distracts the driver. The unexpected / wanted stop in heavy traffic could cause a rear-end collision leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel at 2 different dealerships, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

NHTSA ODI #11447518

Official recalls

8

26V363000 · Steering:hydraulic Power Assist:pump

Jun 4, 2026

Chrysler (FCA US, LLC) is recalling certain 2021-2025 Jeep Wrangler, Wrangler 4XE, and Jeep Gladiator vehicles. The electric hydraulic power steering pump wiring may overheat and cause a vehicle fire, even when the vehicle is parked with the ignition in the "Off" position.

Consequence & remedy

Consequence: A vehicle fire increases the risk of injury.

Remedy: Owners are advised to park outside and away from structures, until their vehicle is repaired. Dealers will inspect and replace the wiring and electric hydraulic power steering pump, as necessary, free of charge. Owner notification letters are expected to be mailed July 9, 2026. Owners may contact FCA US LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is 21D. The Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov on June 11, 2026.

24V652000 · Electrical System: Instrument Cluster/panel

Sep 5, 2024

Chrysler (FCA US, LLC) is recalling certain 2020-2024 Jeep Gladiator and 2018-2024 Jeep Wrangler vehicles. The instrument panel cluster may experience an internal short circuit and fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."

Consequence & remedy

Consequence: An instrument panel that fails to display critical safety information, such as the speedometer or warning lights, can increase the risk of a crash.

Remedy: Dealers will replace the instrument panel cluster, free of charge. Owner notification letters were mailed between October 3, 2024, and January 23, 2025. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is 30B.

24V572000 · Power Train:manual Transmission:control Module:software

Aug 1, 2024

Chrysler (FCA US, LLC) is recalling certain 2021 Jeep Wrangler and Jeep Gladiator vehicles that were previously remedied under NHTSA recall number 23V-116. The software for the powertrain control module may cause an engine stall, which can result in a loss of drive power.

Consequence & remedy

Consequence: A loss of drive power increases the risk of a crash.

Remedy: Dealers will update the powertrain control module software, free of charge. Owner notification letters were mailed August 15, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is 92B. Vehicles previously repaired under recall 23V-116 will need to have the new remedy completed.

23V263000 · Fuel System, Diesel:delivery:fuel Pump

Apr 13, 2023

Chrysler (FCA US, LLC) is recalling certain 2021-2023 Jeep Wrangler, Gladiator, and 2022-2023 Ram 1500 vehicles equipped with a 3.0L diesel engine. The high pressure fuel pump (HPFP) may fail.

Consequence & remedy

Consequence: Fuel pump failure can result in an engine stall, increasing the risk of a crash.

Remedy: Dealers will replace the HPFP and replace additional fuel system components, as necessary, free of charge. Owner notification letters were mailed October 17, 2023. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 01A.

23V116000 · Power Train:clutch Assembly

Feb 23, 2023

Chrysler (FCA US, LLC) is recalling certain 2018-2023 Jeep Wrangler, and 2020-2023 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence & remedy

Consequence: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.

Remedy: Dealers will replace the clutch assembly and update the software, free of charge. Owner notification letters were mailed from November 16, 2023 through July 25, 2024. Owners may contact (FCA US, LLC) customer service at 1-800-853-1403. FCA US LLC's number for this recall is 19A. This recall expands and replaces previous recall 21V-028. Vehicles previously repaired under recall 21V-028 will need to have the new remedy completed.

22V767000 · Engine; Fuel System, Gasoline:delivery:fuel Pump

Oct 13, 2022

Chrysler (FCA US, LLC) is recalling certain 2020-2022 Jeep Wrangler, Ram 1500, and 2021-2022 Jeep Gladiator vehicles equipped with 3.0L diesel engines. The high pressure fuel pump (HPFP) may fail, causing an engine stall.

Consequence & remedy

Consequence: An engine stall can increase the risk of a crash.

Remedy: Dealers will replace the HPFP and inspect and replace additional fuel system components, as necessary, free of charge. Owner notification letters were mailed October 17, 2023. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is Z96.

Additional source detail variants (2)

Engine

Chrysler (FCA US, LLC) is recalling certain 2020-2022 Jeep Wrangler, Ram 1500, and 2021-2022 Jeep Gladiator vehicles equipped with 3.0L diesel engines. The high pressure fuel pump (HPFP) may fail, causing an engine stall.

Consequence: An engine stall can increase the risk of a crash.

Remedy: Dealers will replace the HPFP and inspect and replace additional fuel system components, as necessary, free of charge. Owner notification letters were mailed October 17, 2023. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is Z96.

Fuel System, Gasoline:delivery:fuel Pump

Chrysler (FCA US, LLC) is recalling certain 2020-2022 Jeep Wrangler, Ram 1500, and 2021-2022 Jeep Gladiator vehicles equipped with 3.0L diesel engines. The high pressure fuel pump (HPFP) may fail, causing an engine stall.

Consequence: An engine stall can increase the risk of a crash.

Remedy: Dealers will replace the HPFP and inspect and replace additional fuel system components, as necessary, free of charge. Owner notification letters were mailed October 17, 2023. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is Z96.

22V638000 · Back Over Prevention:display Function

Aug 25, 2022

Chrysler (FCA US, LLC) is recalling certain 2020-2021 Jeep Wrangler, RAM 1500 and 2021 Jeep Gladiator vehicles. A radio software error may prevent the rearview image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Consequence & remedy

Consequence: A rearview camera that does not display an image reduces the driver's rear view, increasing the risk of a crash.

Remedy: Dealers will update the radio software, free of charge. Owner notification letters were mailed October 6, 2022. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA, LLC's number for this recall is Z86.

21V028000 · Power Train:clutch Assembly

Jan 28, 2021

Chrysler (FCA US, LLC) is recalling certain 2018-2021 Jeep Wrangler and 2020-2021 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.

Consequence & remedy

Consequence: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.

Remedy: FCA US LLC will notify owners, and dealers will add software to reduce engine torque capability when clutch assembly temperatures rise to a level that may damage the inner pressure plate, free of charge." FCA has ordered a stop sale for the affected vehicles as of February 25, 2021. Owner notification letters were mailed on March 4, 2021.

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

2

PE24024 · Underhood Fires

Opened Sep 6, 2024 · No close date supplied

Status: open (inferred from source dates) · Steering:hydraulic Power Assist:pump

The Office of Defects Investigation (ODI) has received 9 Vehicle Owner's Questionnaire (VOQ) reports, 1 Death and Injury report, and multiple field reports alleging incidents of engine compartment fires in model year (MY) 2021-2023 Jeep Wrangler and Gladiator vehicles. The majority of the reports describe a fire occurring while the ignition in the vehicle was in an ‘OFF’ state with a suspected origin at the passenger front side of the engine compartment. An ignition ‘OFF’ vehicle fire can result in an increased risk of occupant injury, injury to persons outside the vehicle, and property damage, with little to no warning. ODI has contacted the vehicle manufacturer, Fiat Chrysler Automobiles (FCA), and learned of several thermal events originating at the power steering pump electrical connector in recent model year Jeep Wrangler and Gladiator vehicles. The location of the pump connector is located at the passenger front side of the engine compartment, coinciding with the majority of fire reports known to ODI. ODI is opening this Preliminary Evaluation (PE) to assess the cause, scope, and frequency of the alleged defect. To review the ODI reports cited in the Opening Resume ODI Report Identification Numbers document, go to NHTSA.gov.

EA23001 · High Pressure Fuel Pump Failure

Opened Mar 17, 2023 · No close date supplied

Status: open (inferred from source dates) · Fuel System, Diesel:delivery:fuel Pump

The Office of Defects Investigation (ODI) opened PE21-021 on October 14, 2021, to investigate incidents alleging a stall/loss of motive power as a result of high-pressure fuel pump failures in certain model year (MY) 2019-2020 Ram 2500, 3500, 4500, and 5500 heavy duty trucks equipped with 6.7L Cummins turbodiesel engines. During the investigation, ODI sought to determine if the related defect allegation was limited in scope to the recalled population. After review of information request response materials from both FCA and BMW, NHTSA determined that sufficient information to identify a comprehensive recall population could not be produced by FCA and BMW.During the investigation FCA filed recalls 22V406, 22E048, 22V767, and 22E087 which include vehicles not identified in the initial subject population by ODI. ODI also received recall 21V586, involving loss of motive power due to failed CP4 fuel pumps on certain BMW manufactured vehicles. An information request letter response received from BMW indicated that failed pumps on their vehicles were caused by an interaction between pump internal components and US market diesel fuel, leading to increased slip and eventual particle-generating wear surface. Additional work will be done to identify whether a similar root cause is associated with the FCA recalled population and if similar wear dynamics occur on pumps supplied to vehicle manufacturers other than those included in the recalled population.ODI has upgraded this investigation to an EA in order to 1) determine engineering specifications of internal pump components that are correlated with pump failure leading to loss of motive power or other safety related hazards, 2) identify vehicle populations equipped with alleged defective pump variants, 3) assess if vehicles equipped with alleged defective pump variants result in an unreasonable risk to motor vehicle safety and 4) gather and review any other relevant information related to high pressure fuel pump failure associated with the subject populations of recalls 21V586, 21V880, 21E094, 22V406, 22E048, 22V767, and 22E087.Review of the above information will allow NHTSA to confirm root cause and recall remedy viability, and identify and evaluate vehicle populations equipped with pump components that may pose an unreasonable risk to motor vehicle safety.The ODI reports cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID using the following complaint identification numbers: 11257550, 11351441, 11361603, 11361616, 11365300, 11365426, 11365858, 11366401, 11372337, 11373793, 11374797, 11376793, 11377871, 11378173, 11384377, 11386063, 11387018, 11399710, 11402550, 11415339, 11418868, 11418870, 11427075, 11434276, 11436807, 11437226, 11437249, 11437273, 11437292, 11437294, 11437394, 11437399, 11437403, 11437405, 11437423, 11437528, 11437565, 11437579, 11437580, 11437590, 11437679, 11437744, 11437781, 11437842, 11437993, 11438006, 11438008, 11438121, 11438138, 11438155, 11438392, 11438629, 11439359, 11439879, 11440397, 11443030, 11446542, 11448163, 11453556, 11458918, 11460558, 11469337