2021 Jeep Wrangler Common Problems & Defect Telemetry
Authoritative defect intelligence synthesized from 904 verified NHTSA owner complaints, 15 federal safety recalls, and interquartile failure mileage telemetry.
The 2021 Jeep Wrangler receives a 3.1/10 MazicBay Reliability Index based on 904 verified NHTSA federal complaints and 15 safety recalls. The primary reported failure mode is Electrical Parasitic Drain, Infotainment & Harness Reports with a median failure point at 12,000 miles (IQR: 3,000 – 36,419 mi). Out-of-warranty repairs benchmark at $280 – $850 .
50.2 complaints / 10k sold
Verified US federal records
Crash, fire & stall audit
15 Active / Free Remedies
Top Reported Problem Clusters (7)
Electrical Parasitic Drain, Infotainment & Harness Reports
- Unexplained battery drain after sitting overnight
- Infotainment display / instrument cluster blackouts
- Accessory malfunction / alternator fault warnings
“When using electric mode, repeatedly and consistently, when I try to accelerate (for example to get onto a highway) despite having the acceleration fully depressed, the car does not accelerate. After some time, the gas powered engine will rev, the RPM will shoot up and then th...”
“After dealer recall 21D inspection on 7/30/2026 I have experienced 2 electrical failures in the recall system, and/or systems associated with recall. The first incident on 7/31/2026 at approximately 9:00 PM my wife, 2 kids, and a neighbors kid were at a stop light for a 4 lane...”
“Acceleration lag: either bucking or temporary loss of motive power when attempting to pull into traffic has almost caused us to be hit several times. We had the problem almost immediately after purchase, but the lag was short and the Jeep would leap forward and back tires woul...”
Electric Power Steering Assist & Suspension Noise Reports
- Sudden loss of electric power steering assist
- Steering wheel pull or highway wander
- Clunking / knocking noise over bumps
“After dealer recall 21D inspection on 7/30/2026 I have experienced 2 electrical failures in the recall system, and/or systems associated with recall. The first incident on 7/31/2026 at approximately 9:00 PM my wife, 2 kids, and a neighbors kid were at a stop light for a 4 lane...”
“Our Jeep has a death wobble that has almost caused me to have three wrecks where it is taking me out of my lane of travel and put me in Lanes where other people are had to get to the side of the road and try to get it to stop wobbling it. Every time I hit a pothole or a bump i...”
“I am writing to express my concern regarding the handling of the urgent safety recall affecting my Jeep Wrangler. This recall has been classified as an urgent fire and safety risk, yet no remedy is currently available. The recall notice stated that owners would receive notific...”
Engine Stalling, Oil Consumption & Cooling Defect Reports
- Engine sudden stall / hesitation while driving
- Abnormal oil burning / consumption
- Check Engine Light (MIL) flashing
- Engine overheating / coolant loss
“When using electric mode, repeatedly and consistently, when I try to accelerate (for example to get onto a highway) despite having the acceleration fully depressed, the car does not accelerate. After some time, the gas powered engine will rev, the RPM will shoot up and then th...”
“After dealer recall 21D inspection on 7/30/2026 I have experienced 2 electrical failures in the recall system, and/or systems associated with recall. The first incident on 7/31/2026 at approximately 9:00 PM my wife, 2 kids, and a neighbors kid were at a stop light for a 4 lane...”
“Acceleration lag: either bucking or temporary loss of motive power when attempting to pull into traffic has almost caused us to be hit several times. We had the problem almost immediately after purchase, but the lag was short and the Jeep would leap forward and back tires woul...”
Transmission Hesitation, Hard Shifting & Slipping Reports
- Hard gear shifts / delayed engagement into Drive/Reverse
- Transmission shudder / jerking under acceleration
- Transmission slipping between gears
“When using electric mode, repeatedly and consistently, when I try to accelerate (for example to get onto a highway) despite having the acceleration fully depressed, the car does not accelerate. After some time, the gas powered engine will rev, the RPM will shoot up and then th...”
“Acceleration lag: either bucking or temporary loss of motive power when attempting to pull into traffic has almost caused us to be hit several times. We had the problem almost immediately after purchase, but the lag was short and the Jeep would leap forward and back tires woul...”
“2021 jeep wrangler 4xe unlimited rubicon. Death wobble steering stabilizer has been replaced. 4 Alignments in a week . Was told that it was my tires nope not the case . I can’t not drive my jeep at all . Now the transfer case is leaking the track bar that I told the mechanics ...”
Service Brakes, ABS Actuator & Master Cylinder Reports
- Spongy or hard brake pedal travel
- ABS / Brake warning light illuminated
- Extended stopping distance / pedal vibration
“Summary of Issue: The vehicle exhibited a repeatable dangerous steering oscillation after encountering road irregularities at speed. This occurred multiple times and is consistent with the known Wrangler “death wobble” condition for which a class action settlement exists on pr...”
“The forward collision/emergency brake engages when it is not needed, necessary or appropriate, and even when the brake pedel is already being pressed. I have adjusted the sensitivity of the emergency braking and forward collision system and I still have this issue.”
“I have had a brake problem since September 2025. The symptom is a hard brake pedal that does not stop the vehicle at low speeds. There is a similar problem with other Wrangler models that do have a recall issued. It was related to a software update around the same time my prob...”
Fuel Pump Pressure Loss & Fuel Delivery Defect Reports
- Sudden loss of propulsion power at highway speeds
- Extended engine cranking / failure to restart
- Fuel odor near fuel tank / engine bay
“Acceleration lag: either bucking or temporary loss of motive power when attempting to pull into traffic has almost caused us to be hit several times. We had the problem almost immediately after purchase, but the lag was short and the Jeep would leap forward and back tires woul...”
“Follow-up to complaint 11749455, same vehicle (2021 Jeep Wrangler EcoDiesel, approx. 98,300 miles). Following recall 01A (high-pressure fuel pump replacement), a diesel fuel leak was discovered at a fuel supply component by the servicing dealership. That fuel injector supply l...”
“Subject: Safety Complaint – 2021 Jeep Wrangler 2.0L Fuel Pump Failure (Loss of power while driving.) I am filing this complaint regarding a 2021 Jeep Wrangler equipped with the 2.0L engine due to what I believe is a significant safety issue involving the fuel pump. The fuel pu...”
Airbag Occupant Detection & Inflator Defect Reports
- SRS Airbag warning lamp illuminated
- Passenger occupant classification sensor failure
- Seat belt retractor lockup
“The contact owned a 2021 Jeep Wrangler. The contact stated that while driving on the highway at 45 MPH, the instrument panel cluster went out and the vehicle experienced a slight loss of automotive power, and the front headlights failed, the contact was then involved in a head...”
“1. The vehicle caught fire during normal operation. It is a 2021 Jeep Wrangler (VIN ...) subject to FCA US Recall 21D / NHTSA Campaign 26V363000, which identifies the electric hydraulic power steering (EHPS) pump and its wiring as a fire source that can overheat and ignite. Th...”
“My vehicle is subject to an open safety recall (NHTSA Recall 25V-741) involving high-voltage battery separator damage that may cause a vehicle fire when parked or charging. The recall has been active on this vehicle for over four months. The manufacturer and dealers have confi...”
Official NHTSA Safety Recalls (15)
POWER TRAIN:CLUTCH ASSEMBLY
Summary: 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.
BACK OVER PREVENTION:DISPLAY FUNCTION
Summary: 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."
SEAT BELTS:PRETENSIONER
Summary: Chrysler (FCA US, LLC) is recalling certain 2022 Ram 1500, Jeep Gladiator, and 2021 Jeep Wrangler vehicles. The front seat belt retractors may have an improperly welded micro gas generator, which can result in seat belt pretensioner failure.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Summary: 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.
ENGINE
Summary: Chrysler (FCA US, LLC) is recalling certain 2021-2023 Jeep Wrangler 4xe vehicles equipped with 2.0L Plug-In Hybrid Electric Vehicle engines. A loss of communication may cause an engine shutdown.
POWER TRAIN:CLUTCH ASSEMBLY
Summary: 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.
STRUCTURE:FRAME AND MEMBERS
Summary: Chrysler (FCA US, LLC) is recalling certain 2020-2022 Jeep Wrangler vehicles. A stud on the frame assembly may puncture the fuel tank in a crash, which can result in a fuel leak.
FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP
Summary: 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.
ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
Summary: Chrysler (FCA US, LLC) is recalling certain 2021-2023 Jeep Wrangler Plug-In Hybrid Electric (PHEV) vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
Summary: Chrysler (FCA US, LLC) is recalling certain 2021-2024 Jeep Wrangler and 2022-2024 Jeep Grand Cherokee vehicles. A hybrid control processor (HCP) software error may cause the defrosting and defogging system to be inoperative. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 103, "Windshield Defrosting and Defogging Systems."
POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE
Summary: 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.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Summary: 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."
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Summary: Chrysler (FCA US, LLC) is recalling certain 2018-2024 Jeep Wrangler vehicles. The wiring harness for the rearview camera and the center brake light may short circuit, which can disable the rearview camera image and center brake light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 111, "Rear Visibility" and 108, "Lamps, Reflective Devices, and Associated Equipment."
ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
Summary: Chrysler (FCA US, LLC) is recalling certain 2020-2025 Jeep Wrangler 4Xe and 2022-2026 Grand Cherokee 4Xe vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.
STEERING:HYDRAULIC POWER ASSIST:PUMP
Summary: 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.
Pre-Purchase Inspection Checklist for 2021 Jeep Wrangler
Before purchasing a used 2021 Jeep Wrangler, perform the following targeted inspections based on reported federal defect patterns:
Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).
Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.
Verify that all 15 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.
Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.
Defect & Reliability Q&A: 2021 Jeep Wrangler
Is the 2021 Jeep Wrangler a reliable used car?
The 2021 Jeep Wrangler earns a 3.1/10 MazicBay Reliability Index based on 904 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.
What is the most frequent defect reported on the 2021 Jeep Wrangler?
The leading complaint category is Electrical Parasitic Drain, Infotainment & Harness Reports, with a median failure point around 12,000 miles (IQR: 3,000 – 36,419 mi).
Are there free recall repairs available for the 2021 Jeep Wrangler?
Yes, the NHTSA records 15 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.

