2021 Jeep Compass engine problems

Filed Oct 31, 2026 · Engine · FL

On October 30, 2026, my 2021 Jeep Compass Limited, with approximately 67,000 miles, unexpectedly became inoperable despite operating normally the previous day. When attempting to start the vehicle, the dashboard displayed a “Coolant Temperature High” warning accompanied by a flashing check-engine light. The engine made clicking noises but failed to start, while the radio and other electrical components remained functional. The temperature gauge remained at its lowest reading, and there were no visible signs of overheating, smoke, or unusual odors. The battery and alternator were tested and found to be functioning properly, and diagnostic trouble code U0402 was identified. I am concerned because the federal safety agency previously investigated similar coolant temperature warnings, engine shutdowns, and failure-to-restart incidents involving 2019–2020 Jeep Compass vehicles under investigation PE22-013. Although my vehicle is a 2021 model, it is exhibiting similar symptoms, raising concerns about a potential recurring safety-related defect. An unexpected loss of engine power while driving could create a serious collision risk. I am requesting that the federal safety agency investigate whether the 2021 Jeep Compass is affected by a similar defect and determine whether a safety recall or manufacturer corrective action is warranted.

Filed Sep 6, 2026 · Engine · TX

I am filing a safety complaint regarding my 2021 Jeep Compass Limited due to repeated coolant loss, overheating/high-temperature warnings, and eventual engine failure. The vehicle began losing coolant and required frequent refilling. The problem progressively worsened until coolant would immediately leak out underneath the vehicle when added. I paid approximately $1,400 to have the radiator replaced, but the same problem returned approximately two weeks later. The vehicle subsequently developed additional problems including shaking, a check-engine light, Cylinder 1 misfire, and diagnostic code P0117 related to the coolant temperature sensor/circuit. The vehicle also displayed a warning that the oil temperature was too high and the engine needed to cool down. The vehicle eventually became undrivable, and I believe the engine may have locked up. The progression from severe coolant loss and overheating to misfire, high-temperature warnings, and possible catastrophic engine failure is concerning. This vehicle is used to transport my children, including daily school transportation. I am concerned that a sudden loss of coolant, overheating, loss of power, or engine failure while driving could create a serious safety hazard. The radiator replacement did not resolve the underlying problem, which makes me concerned there may be a larger defect involving the cooling system, temperature control, or related engine components. I am requesting that the federal safety agency investigate whether similar coolant-loss, overheating, temperature-warning, and engine-failure problems are occurring in 2021 Jeep Compass vehicles and whether a safety defect may exist.

Filed Aug 27, 2026 · Acceleration, Electrical · TX

To Whom It May Concern: I am writing to formally submit a complaint regarding my 2021 Jeep Compass, particularly concerning recurring mechanical, electrical, and safety-related problems that have created serious concerns about the vehicle's reliability and safe operation. The most concerning issue is the vehicle's unexpected stalling at low speeds, particularly associated with the 2.4L engine. Unexpected loss of power while driving at low speeds creates a significant safety concern because it can occur when entering intersections, turning, maneuvering through traffic, or attempting to accelerate from a stopped or slow-moving position. In addition to the stalling issue, I have experienced or am concerned about the following problems: 1. Transmission Problems The vehicle has demonstrated concerning transmission behavior, including: Rough or abnormal shifting Delayed acceleration Delayed engagement Unresponsive or delayed gear changes Hesitation when attempting to accelerate Behavior that may contribute to the vehicle unexpectedly losing power or momentum These symptoms raise concerns regarding the transmission's proper operation and the possibility that transmission performance may be contributing to the vehicle's stalling and delayed acceleration. 2. Electrical System Problems The vehicle has also experienced significant electrical concerns, including: Infotainment screen freezing or becoming unresponsive Battery becoming completely or significantly discharged after sitting overnight Suspected parasitic battery drain Random or unexplained dashboard warning lights Electrical/electronic systems intermittently malfunctioning These issues are particularly concerning because intermittent electrical problems can be difficult to diagnose and may affect other vehicle systems, including safety-related components. 3. Backup Camera and Safety Concerns I am also concerned about failures involving the vehicle's backup camera and safety-related wiring, including poten

Filed May 19, 2026 · Electrical, Engine · NC

The engine will shut off completely while traveling a a normal rate of speed. The temperature gauge will malfunction and report high temperature (when there is none) and the engine will shut off. It cannot be restarted without putting the car in park and pressing the brake while in the midst of moving traffic. This has happened to me multiple times. At first, turning off the auto stop/start feature would prevent this form happening but turning it off no longer prevents this. This happens randomly and cannot be reproduced manually. It is also extremely dangerous and upsetting when this happens in highway traffic at speed. The Jeep also seems to have a parasitic drain on the battery and both batteries had to be replaced by the dealer. My research shows that there have been alt least 15 similar complaints filed.

Filed Mar 15, 2026 · Engine, Steering · KY

This first occurred on 3/10/2026 and then occurred again on 3/15/2026. When driving the coolant temp warning will randomly come on. This causes the car to lock up. After about 30-60 seconds it goes back to normal. This could very dangerous if I were on the interstate that I take every day to work. I am a mechanic, have hooked it up to a computer and there are no codes. I have tried to research it a learned that it is a consistent issue that seems to be common in the Jeep Compass, going back as far as the 2019 model.

Filed Jan 27, 2026 · Acceleration, Electrical · CA

The high coolant temperature light cut on and turned my vehicle off while driving. This problem has been reported on older model Jeep compasses. The car never turned back on and I had to get my vehicle towed home.

Filed Jan 4, 2026 · Electrical, Engine · AZ

Multiple times now at random, car will go from normal temp to overheating on the gauge for a moment. Shuts down in doing so regardless of being driven. Then will instantly think its cooling back down to normal. When it reaches normal it resumes normal driving abilities. While the temp is going up and down on the gauge the center of the cluster tells you "high coolant temperature". No codes or pending codes can be found. Thermostat housing and sensor have been replaced and still occurring at random. Researching online forms, lots of complaints of same issues with no resolve, spending thousands of dollars and trips to dealers and shops to not be resolved. This is a huge safety hazard as you can not move out of the way of others when it happens and occurs both when driving and stopped situations.

Filed Aug 12, 2025 · Acceleration, Electrical · GA

Purchased Jan 20 2024 Battery issues started in April 2024, battery started melting a particular component, i had to replace the battery, the melting was still happening, I went to another jeep location, to get a fuse component that keeps wires separate, the melting still happened. I told the original Jeep dealership about each thing, they told me to bring it in finally and told me I had to pay for a wire harness to be run throughout the car, 3000, to 1800, and then 0, for a "malfunction they found and fixed" After Wire harness situation and price de-escalation after i told them they shouldjust take the car back because i dont have 3000; the start stop now not cooperating, has been happening since Aug 2024 in daytime with lyft rider in car. Stopped for a few months then repeated in October at night with other guests in car. Today (07/14/2025) Before 2 shift of lyft (before 7:50pm) The car stopped 6 times, 2 times with 2 different lyft riders in car. 4 times by myself, 1 time on the highway 2nd to 1st lane, with 18 wheeler behind me. This time it started back immediately but with 2nd passenger in car and 3rd time on my own it took several minutes before turning back on. Car stopped driving again today 07/15/2025 (recorded video) Now the car has a serv 4wd and the engine light is on, and I dont know whats wrong with the car. Its stressful, and I'm ready to give the car back for trade in value. Car still stops when it wants, its difficult to get a video as its happening, but the car just starts shaking, and stops driving no matter where I am. Everything will be easier to explain over the phone or in person, I am very scared of this car, this is my only source of income and now the Check engine light is on and I don't know whats wrong with the car. I've never had this many issues with a car and its the youngest car I've had. Ive seen many complaints about Jeep compass in particular after 2016. Having more problems and all similar to each other as the years go by.

Filed May 28, 2025 · Engine · 70,000 miles · TX

The contact owns a 2021 Jeep Compass. The contact stated while driving 75 MPH, a message indicating that the engine was overheating was displayed. The contact pulled over to the side of the road and added water to the coolant reservoir. Additionally, the contact stated that the engine was not running properly while driving. The contact stated that upon inspecting the vehicle, the contact noticed that there was a burned coolant mark underneath the engine. An unknown dealer was notified of the failure and informed the contact that the vehicle was not covered under warranty. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The contact was referred to the federal safety agency Hotline for assistance. The failure mileage was approximately 70,000.

Filed May 8, 2025 · Electrical, Engine · AL

For 6months I have a low oil pressure light come on before my oil change is due. Dealer has ran 3 oil consumption test pass/fail/pass the next one will fail as I had to add 2 quarts or oil this week and my oil change isn’t due for 2k more miles. There is no leak visible so it must be within the motor. As well as I have already replaced start/stop battery as well as main battery bc if the start/stop and it hasn’t been a year and the lights are back on and I can’t engage it. The oil issue start before the warranty went out the first time. Now I have no warranty and have to feed the car oil. It is ridiculous. This needs to be a recall. 2018 had a recall for this same oil issue. Now we need it for newer models.