2021 Jeep Wrangler driver assistance problems

Filed Jun 13, 2026 · Brakes, Driver assistance · MA

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.

Filed Mar 14, 2026 · Driver assistance, Engine · NJ

My 2021 Jeep Wrangler Rubicon (3.6L eTorque, automatic transmission) has had recurring drivetrain instability since about 2,000 miles while under factory warranty. It intermittently has high RPM flare during acceleration, delayed shifting, shuddering under load, and abrupt engagement. At low speeds (about 10–5 mph), it harshly downshifts, grabs suddenly, RPMs jump up and down, and it can feel like it will stall; it has stalled intermittently. Braking feels inconsistent, and at times it feels like the vehicle resists braking or surges before slowing. The forward collision warning/automatic emergency braking has activated with no obstacle present, and the power steering assist has been lost intermittently. There is also an engine tick and a high-pitched whining noise from the engine/drivetrain area. In January 2026, the transmission catastrophically failed and required replacement of the transmission, torque converter, cooler, and control module. The vehicle was out of service for over 24 days. After installation of a new Mopar remanufactured transmission and torque converter, the same symptoms returned. AAMCO has now found that the new torque converter failed, with metal shavings throughout the transmission, in the fluid, and at the bottom of the pan. I was advised that the vehicle should be sent to a Jeep dealership because no codes are currently present. I was also advised that the dealership may replace only the torque converter rather than the entire transmission, despite recurring failure and metal contamination. This presents a safety concern due to loss of acceleration, unpredictable torque engagement, stalling, unintended braking activation, power steering loss, engine/drivetrain noise, and repeated drivetrain failure. I have all the records if requested, file is too large to send in the upload area.

Filed Mar 2, 2026 · Driver assistance, Engine · NJ

My 2021 Jeep Wrangler Rubicon (3.6L eTorque, automatic transmission) has experienced recurring drivetrain instability beginning at approximately 2,000 miles while under factory warranty. The vehicle intermittently exhibits a high-RPM flare during acceleration, where the engine speed increases without a commensurate increase in vehicle acceleration. The transmission then abruptly engages, causing sudden jerking. At low speeds (approximately 10–5 mph), the vehicle shudders and harshly downshifts, creating a sudden grabbing sensation. Engine RPMs fluctuate during deceleration as if the transmission cannot smoothly match engine speed. Braking feels inconsistent, and at times it feels as though the vehicle is accelerating or resisting braking input before abruptly slowing. The vehicle has felt as though it would stall at low speeds and has stalled intermittently. Additionally, the forward collision warning / automatic emergency braking system has activated without an obstacle present. There have also been intermittent instances of loss of power steering assist. The engine has developed a ticking noise and a high-pitched ringing/whining sound from the engine area during operation. In January 2026, the transmission catastrophically failed and required replacement of the transmission, torque converter, cooler, and control module. The vehicle was out of service for over 24 days. Following installation of a Mopar remanufactured transmission and torque converter, the same symptoms have recurred, including RPM flare, delayed shifting, shuddering, harsh downshifts, unstable deceleration, and abnormal engine noises. These conditions present a safety concern due to loss of expected acceleration, unpredictable torque engagement, unintended braking activation, intermittent power steering loss, stalling behavior, and drivetrain instability. The vehicle is currently under further diagnostic evaluation. I have multiple documents, but the file is too large to upload

Filed Jan 12, 2026 · Driver assistance, Steering · IN

Two issues that I want to make known. First is a classic jeep issue with the death wobble. I currently have the jeep back in the shop for the current recall and having them fix the wobbling again. This would be the second time that it has happened. worried because the warranty is about to expire. Next is a problem that I almost forgot about until recently because I started driving a rental jeep wrangler. With my jeep, when I have the adaptive cruse control on, it some times thinks there is a car in front of me when it is in the next lane, and right in the middle of the highway, my jeep tries to stop because there is a car next to me in its own lane. This has been going on for a while now but i have never gotten it looked at because of the cost. im going to have both issues looked at during the recall because my extended warranty is ending and im worried that if i dont get it fixed now, im going to have to pay more in the future. Side notes about my jeep, it was a buy back before I purchased it. Was supposedly fixed. At around 10k miles I had a radiator issue and then needed to have a complete engine replacement. With both of these battery recalls, I have had to get a new battery. Im about to get by 3rd. There has also been hvac issues fixed in the past. I tried to contact jeep about another buy back, but they denied the claim without even talking to me. Currently working on trying to actually talk to someone.

Filed Oct 24, 2025 · Driver assistance, Steering · OH

I was driving 72 miles per hour on 4 lane highway and the steering wheel and front end of the jeep was vibrating uncontrollably. The cruse control stopped working, i applied the brake and was able to slow down and pull over to the side of the road. No flat tires so I pulled back on to the highway and arrived at my destination without further incident. 10-24-25 The same thing happened last week but i thought maybe the lane assist went off because there were no road lines (newly repaved road) but my Jeep doesn't have lane assist. After researching on line I believe what occurred is what they call "Death wobble" there were no bumps in the road - the road is in good condition so I'm not certain what prompted the death wobble.

Filed May 20, 2025 · Driver assistance, Wheels · AZ

Purchased this vehicle used from Chrysler Dodge Jeep in Mesa, Arizona. I was told the tires were newer and in great shape they looked to have a good amount of tread on them. However, I had an issue with one tire and the dealership patched it incorrectly making it a safety hazard Therefore they replaced one tire with the plug and when I went to a tire place for pressure issues and TPS sensor they pointed out the tires were over five years old which means these were the original tires that came with the Jeep in 2021. After only owning this vehicle for two months, I now have to replace all four tires Because there is a safety issue with the age and the tread. There was also issues with the steering damper, which they did repair due to wobbling, however there is a slight wobble still because I have one brand new tire from the dealer and three tires that are not new. The dealer refuses to take ownership of the sale of unsafe tires.. dealer offered three month 3000 mile max care warranty and they still won’t address the tire issue.

Filed Feb 21, 2025 · Driver assistance, Electrical · NY

I have a 2021 Jeep Wrangler 4XE Rubicon. My vehicle has been recalled three times for updates. I have had one recall done for the defroster due to the faulty software that can cause reduced visibility increasing a risk of a crash. The second one was for risk of fire from a faulty high voltage battery driving or parked. The third recall call was to update software for the high voltage battery in which doing so caused my vehicle not to fully charge and to lose power when driving and not be able to start for hours at a time. I now have brought my vehicle back to the Jeep service center for a diagnostic test and it was found that the high voltage battery pack is faulty in which Jeep has said they will put a new battery in once approved from Chrysler. Jeep has not been able to be able to fix the problem with Hybrid battery packs possibly catching on fire or exploding and the new one I'd be getting would risk the same problems possibly injuring or killing myself or any passengers I might have in the vehicle. Jeep is not able to get to the root of the cause of why these high volt battery can go on fire even when they are not in use causing possible property damage to my home or neighbors. I am told in the recall to park my vehicle away from properties and other cars which is impossible to do. I hope you take this serious matter into consideration that Jeep Corporation must find a solution for this Nationwide problem and for people on the road.

Filed Nov 16, 2024 · Driver assistance · TX

I had the most recent incident driving Westbound in the evening hours shortly before Sunset around October 10, 2024. It appears the sunlight from the setting sun triggered my adaptive cruise control and forward collision alert and triggered an alarm sound and activated emergency braking at the same time. I have had two previous incidents like this. One at the exact same location on my commute home at around the same time and maybe a week before. A third occurrence was on an Eastbound morning drive with the rising sun. All three incidents triggered emergency braking from a speed of ca. 65mph. I was able to react fast enough to deactivate the ACC by lightly pushing the brake pedal and could avoid serving or complete stopping of the vehicle. Luckily during all incidents I had no close traffic behind me, otherwise the incidents could have caused a rear end collision.

Filed Jul 23, 2024 · Driver assistance, Electrical · AL

Hi the two major issues that need to reported. 1. The vehicle would just shut down while driving at highway speeds. It would have trouble restarting and you would have to cost to the shoulder. This issue was random, we took it to the dealership and they drove it for a week until it left them on the side of the road. They kept it for just over a month and a star case had to be opened. 2. 2nd issue, The vehicle would shutter when accelerating and would shutter when braking. Extremely dangerous when trying to drive it back to the dealership. It had something to do with the vehicle not knowing if it wanted to be in electric or gas. this also caused the ac to stop working and the blind spot system not to work . This time they had it for just over a month to change the main battery. Both case the vehicle was unsafe to be on the road and could have led to a major accident.

Filed Jul 11, 2024 · Driver assistance, Electrical · CA

On november 2022 I had the first lost of power on my jeep wrangler 2021 4xe sahara, I was driving on the freeway on the carpool lane about 65 miles per hour and the car completely shut down leaving me, my mom, my aunt and my service dog in the middle of the [xxx] in los angeles which high traffic freeway with no power to keep moving I could have get killed and my family as well. After that the jeep has been in for repairs for the same issue another fourteen (14) times. Chrysler wont answer to our requests. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)