2021 Jeep Grand Cherokee: engine failure

Filed Apr 2, 2026 · Electrical, Engine · PA

This submission is an update to the federal safety agency Complaint #11727024. The vehicle continues to experience recurring engine overheating and misfire conditions. These issues have been previously diagnosed and are consistent with known manufacturer Technical Service Bulletins (TSBs) related to this engine. Despite this: The dealership has not performed the appropriate diagnostic protocol (including STAR testing) The manufacturer, Stellantis, closed my case without resolving the issue No repair or corrective action has been completed The vehicle remains in operation due to lack of manufacturer support. This condition presents a potential safety risk, including: Loss of power while driving Risk of engine failure or shutdown Increased risk during normal roadway operation The vehicle is regularly operated by my 17-year-old daughter, which increases concern regarding driver safety and reliability of the vehicle under these conditions. This situation reflects: A known defect documented by the manufacturer Failure of the dealer network to properly diagnose/repair Closure of a manufacturer case without resolution of a safety-related issue I am requesting that this complaint be reviewed as part of any broader pattern of similar failures and considered for further investigation.

Filed Mar 25, 2026 · Electrical, Engine · PA

I am reporting a repeated safety-related issue involving my 2021 Jeep Cherokee Overland. The vehicle has experienced ongoing engine misfires and overheating, which create unsafe driving conditions. The issue presents as follows: -Engine begins to misfire, causing rough operation and shaking. -The check engine light flashes intermittently indicating active misfire. -Vehicle performance becomes inconsistent, with concern for loss of power while driving. -Vehicle experiencing coolant loss/overheating, concern for engine failure. These conditions create a serious safety risk, as the vehicle may lose power unexpectedly or become inoperable while driving. Multiple repair attempts have been made, including replacement of ignition components (coils and spark plugs) and other related service. The issue continues to recur, and the root cause has not been resolved. Despite repeated attempts to resolve the issue through the dealership and manufacturer, the problem persists and the vehicle remains unreliable. The manufacturer has not provided a resolution despite multiple attempts, and communication is unsuccessful I am submitting this complaint due to ongoing safety concerns and a lack of resolution.

Filed Nov 11, 2025 · Electrical, Fuel system · CA

Engine died twice on busy freeway and needed to be towed to a shop. Shop verified the fuel pump was working. There is most likely a problem with the fuel pump relay.

Filed Sep 22, 2025 · Electrical, Engine · AZ

I believe it is something with the engine or an electrical component. I was driving and as I was parking my car shut off, was not able to completely park back end of the car is sticking out. I looked up if there were any current recalls using my VIN and nothing appeared. I did my own researching and found that there have been recalls for that model regarding the PTU, Power Steering and Power Loss which is the issue I am experiencing. My car turns off on its own and does not get any type of power. Started having trouble turning on my car over Labor Day weekend was not able to travel due to what I thought was my battery having issues, people were jumping me to be able to start my car. I then had my battery tested at O'Reilly's on 9/3/2025 and when trying to jump start my car they shorted my engine block fuse which I was told after having my car towed to the mechanic and they took a look at it. I replaced my main battery thinking that would solve the issue and it did not and this was before the mechanic looked at it. I then had it towed to a mechanic where they replaced the engine block fuse and I was told that the car was good and running after paying on 9/19/2025. I left the mechanic and came to work where after two hours I tried to start my car and it did not. I called the mechanic and was told it was my auxiliary battery after they came to look at the car and inspect it once again that same day 9/19/2025. I purchased and replaced the auxiliary battery and was able to start and drive the car for 1.6 miles to my brothers apartment from my work before the car turned off on me as I was trying to park. There was an error message on the car at the time when it turned off which read with a caution symbol, "Stop Safely Vehicle Will Shut Off Soon" and then turned off.

Filed Sep 15, 2022 · Driver assistance · CA

I have had TWO incidents where the automatic emergency brake has engaged. The first was in a parking lot at low speed with no cars or objects near the car. The car completely seized up and I had to get a tow truck to take it to the dealer. The second incident I had to slow to zero for a dog in the road and then after it moved and I accelerated the brake engaged and I had to pull out of the road way so I would not get hit from behind. After the car sat parked for 8 hours I was able to drive it to dealer with an engine light on. At dealer the light went off so they were not able to diagnose anything .

Filed Jun 11, 2022 · Engine · FL

The engine mounts on the right side of the motor are defective. It was discovered after I brought the car in for a drum-like noise coming from the engine. The vehicle is less than a year old and has less than 10,000 miles on it. Dealership indicated this has been a recurring problem in some of the new model Grand Cherokee vehicles and the manufacturer is aware of it. They indicated a recall has not been issued as they believe there isn’t a safety concern.They have ordered new engine mounts for vehicle, but they don’t have an ETA on when parts will arrive. They refused my request for a courtesy rental or loaner car. They indicated car was safe to drive. However, I disagree and expressed my concerns to the dealer. They said I would have to call “corporate”.

Filed Apr 11, 2022 · Driver assistance · MA

Backstory: This vehicle has had electrical issues since the day after signing the lease. The second day of driving the vehicle would not start and flashed all the sorts of engine failures. The dealership could not find anything wrong with it after two weeks and deemed it "repaired." Then, 2 days later the vehicle would not start again and flashed all sorts of of engine and system failures. After 4 months of going through FCA's process for the Lemon Law buyback, FCA presented a buyout offer that was inadequate and contained numerous release clauses we were not comfortable agreeing to. We choose to seek Mass Lemon Law State Arbitration as our right to ensure we achieved a fair outcome. FCA pulled our replacement vehicle and in essence forced us to drive to take back and drive the vehicle after it was again "repaired" this time by replacing a battery. The dealership that repaired the vehicle drove it for a week before we were comfortable taking it back. Incident: A month later, while driving the vehicle on a busy main road (at approx. 15 MPH), the vehicle started to alert that various systems were disable and the transmission started to shift violently and the engine reved. The ABS, airbags, lane departure, powering steering, and other systems said they were disabled and that the transmission was disabled. Fortunately, there was a parking lot on the right, I was able to turn into the lot, and attempt to find a safe place to stop. The parking lot was busy and before I was able to pull into a parking space, the car shut off and would not turn on. The hazard lights would not function, and the vehicle was blocking traffic and multiple parked cars. The car would occasionally start and stay on for 10 to 30 seconds at a time, but either the parking brake was locked or the transmission shifted violently as I pressed the gas pedal. After 20 minutes, I managed to limp the car to a safe spot and await a tow. The vehicle is at the dealership. There is also video.