2021 Jeep Wrangler Problems

What owners report

Owners of the 2021 Wrangler most often describe steering shimmy and vibration at highway speeds, along with electrical and infotainment glitches, engine stalls and overheating, and transmission shifting faults. The steering complaints frequently appear at low mileage, while many engine and fuel-system reports come in higher-mileage driving, including on the 3.0L diesel. Complaints describe both gradual symptoms and sudden loss of power.

1. 1
   Steering

   Highway-speed steering shake ("death wobble")

   • 362 complaints (38%)
   • median 17,100 mi at 2.3 yrs old (45 state mileage)
   • 13 mention a crash, fire or injury
   • filed 2020–2026

   Complaints describe the front end shaking violently after hitting a bump or seam at highway speeds, often requiring the driver to slow down before the shaking stops. Several owners say the dealer diagnosed the steering damper, replaced it, and the shaking came back; others report bent tie rods or steering gear work. Some describe constant steering correction and a pull to one side even after multiple alignments. Mostly reported between roughly 5,000 and 40,000 miles, usually at 55-75 mph over bumps or bridge seams.

   Recall 26V3630002 related service bulletins

   What to check: Test drive at highway speed over expansion joints and ask whether the steering damper, track bar or tie rods have been replaced. Check for a documented alignment and any play in the steering.

   2 excerpts from owner complaints in NHTSA records

   “I purchased this 2021 Jeep Wrangler unlimited on september 9, 2020. It is a totally stock vehicle with no modifications of any sort. It has not been driven off road at all, and only on city streets, highways, and interstates, no accidents. While driving on a nearby interstate in january of 2021, at about 77 MPH, a minor seam in the road sent my vehicle into what is commonly known as 'death wobble' mode. Had about 4,000 miles on the odometer. …”

   NHTSA complaint #11398971, filed 2021-03, 4,000 miles

   “The Jeep has excessive steering play and wanders in the lane. When travelling in a straight line, the vehicle requires constant and significant steering correction. This issue becomes more pronounced and dangerous at speeds above 60mph. Two repair attempts have been made by Jeep only of las vegas, but the problem persists. This vehicle has the new black steering gear box and 840 miles. After the last repair attempt, the problem is worse. Vehicle is now too dangerous to drive.”

   NHTSA complaint #11376916, filed 2020-11, 400 miles
2. 2
   Engine

   Stalling and loss of motive power

   • 209 complaints (22%)
   • median 23,915 mi at 3.0 yrs old (41 state mileage)
   • 15 mention a crash, fire or injury
   • filed 2020–2026

   Owners describe the engine cutting out while driving or when pulling away from a stop, sometimes with the gear indicator flashing and several warning lights on. Restarts are reported as intermittent or requiring multiple attempts, and in some cases power steering and braking assist drop out as well. Complaints also cover rough running and check-engine lights tied to sensor and emission faults, with dealers performing software flashes or sensor replacements. Scattered across the range, from a few hundred miles up to about 70,000 miles.

   Recall 24V572000Recall 22V865000Recall 22V7670004 related service bulletins

   What to check: Ask whether the powertrain control module software updates and any recall remedies have been completed, and have a scan tool check for stored codes before buying.

   2 excerpts from owner complaints in NHTSA records

   “Vehicle is brand new and the check engine light came on only after 300 miles. Dealer diagosed the problem with o2 sensor failure and valve cover defect. The vehicle ran very rough and felt like it was about to stall. Search on jlwranglerforums shows there are others experiencing similar problems with less than 500 miles on the odometer.”

   NHTSA complaint #11366230, filed 2020-10, 300 miles

   “The contact owns a 2021 Jeep Wrangler. The contact stated that while driving at 55 MPH, the steering wheel became firm before the vehicle lost motive power and stalled. The vehicle was restarted after three attempts. The vehicle was taken to a dealer but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 26,200.”

   NHTSA complaint #11560256, filed 2023-12, 26,200 miles
3. 3
   Transmission and drivetrain

   Transmission shifting faults and shifter warnings

   • 123 complaints (13%)
   • median 18,000 mi at 2.2 yrs old (27 state mileage)
   • 8 mention a crash, fire or injury
   • filed 2020–2026

   Complaints describe a "service shifter" message, flashing shifter lights, delayed or missing engagement, and jerking or failure to accelerate properly. Some owners were told the valve body or transmission needed replacement; others report lurching and loss of drive at a stoplight. Grinding or popping noises and intermittent no-reverse are also described. Often reported between roughly 2,000 and 16,000 miles, with some higher-mileage cases.

   Recall 23V116000Recall 21V028000Recall 24V5720002 related service bulletins

   What to check: On a test drive, check for delayed or harsh engagement and watch for shifter or service messages. Ask the dealer for a transmission service history and whether the clutch or control module recalls apply to the VIN.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2021 Jeep Wrangler. The contact stated that while driving at various speeds the vehicle would not properly accelerate while depressing the accelerator pedal. The vehicle also jerked while driving. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet notified of the failure. The VIN was not available. The failure mileage was 7,000.”

   NHTSA complaint #11496293, filed 2022-12, 7,000 miles

   “The contact owns a 2021 Jeep Wrangler. The contact stated that while driving at 55 - 60 mph, the RPM gauge went high but the temperature gauge was normal. A burning odor was detected, metal grinding noises were heard, and the vehicle inadvertently lurched forward. The contact pulled over and saw that there was smoke coming from under the hood. The vehicle was towed to the dealer and remained at the dealer, not diagnosed nor repaired. …”

   NHTSA complaint #11435781, filed 2021-10, 9,700 miles
4. 4
   Engine

   Engine overheating and cooling system faults

   • 158 complaints (17%)
   • median 28,000 mi at 3.5 yrs old (19 state mileage)
   • 28 mention a crash, fire or injury
   • filed 2021–2026

   Owners report the temperature gauge climbing with an overheat message and the vehicle dropping into reduced power. Dealers reportedly found faulty cooling hoses or a failed water pump in some cases, and the symptom recurred after the repair for at least one owner. Others describe overheating combined with smoke or fire from under the hood. Mostly reported between about 20,000 and 60,000 miles.

   Recall 26V3630002 related service bulletins

   What to check: Check coolant level and condition, look for residue or stains around the water pump and hoses, and ask whether any cooling-system repairs have been done.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2021 Jeep Wrangler. The contact stated that while operating the vehicle, the engine fan would suddenly turn on and the engine temperature gauge would rise with the message that the engine had overheated. The contact stated that during the failure the vehicle would suddenly decelerate to protect the engine. The vehicle was taken to the local dealer who indicated that the engine tubing was faulty. The vehicle was repaired but the failure persisted. …”

   NHTSA complaint #11512767, filed 2023-03, 20,000 miles

   “The contact owned a 2021 Jeep Wrangler. The contact stated that the vehicle was designed with a right-hand steering wheel and was used as a mail carrier vehicle. The contact stated that after parking and dropping off mail, the contact returned to the vehicle and noticed that the vehicle was overheating, and the battery warning light was illuminated. Additionally, the contact noticed an abnormal popping sound and smoke coming from under the hood. The contact turned off and exited the vehicle. …”

   NHTSA complaint #11745024, filed 2026-06, 59,000 miles
5. 5
   Fuel system

   Diesel fuel pump failure and loss of power

   Mentioned in 5 of 60 sampled complaints

   Owners of the 3.0L diesel describe hesitation, misfires and sudden loss of power while driving, sometimes with the engine stalling. In one account the dealer found the high-pressure fuel pump had failed and metal debris had contaminated the fuel system. Others report check-engine lights tied to sensor and particulate-system faults. Reported mostly between roughly 30,000 and 70,000 miles.

   Recall 23V263000Recall 22V767000

   What to check: On a diesel, ask whether the high-pressure fuel pump recall was completed and request fuel system service records. Check for hesitation under load during a test drive.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2021 Jeep Wrangler Unlimited Rubicon. The contact stated that while driving at 55 MPH, the vehicle was going up a hill when it suddenly stopped. No warning light illuminated. The contact merged to the right side of the road as the vehicle failed to respond. The vehicle was not taken to be diagnosed as the vehicle started to function again. The vehicle was not repaired. The local dealer was contacted; however, the vehicle was not repaired because the dealer stated parts were not available. …”

   NHTSA complaint #11640415, filed 2025-02, 39,000 miles

   “The contact owns a 2021 Jeep Wrangler. The contact stated that while driving 40 MPH, the vehicle lost motive power. The contact was able to turn onto a side street and pull over to the side of the road. The vehicle was towed to a dealer, where it was diagnosed and determined that there was a catastrophic failure of the fuel pump resulting in the fuel lines being contaminated with metal shavings. The contact stated that a fuel injector cleaning service was completed approximately one week prior to the failure. …”

   NHTSA complaint #11762245, filed 2026-09, 67,000 miles

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.