2021 Jeep Grand Cherokee transmission problems

Filed Nov 4, 2026 · Transmission · 111,000 miles · MD

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while accelerating from a stop light and making a right turn, the steering wheel became difficult to turn. The vehicle was parked immediately, and a tow truck was dispatched to the scene. The vehicle was towed to the dealer for diagnostic testing, and it was determined that the power transfer unit (PTU) and module failed and required replacement. The contact was informed that the replacement parts were on backorder. The manufacturer was notified of the failure. The failure mileage was 111,000.

Filed Oct 29, 2026 · Transmission · 65,000 miles · MO

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while driving 70 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended and the vehicle jerked abnormally. The vehicle was taken to the dealer; however, the failure was not duplicated. The failure was a persistent failure. The vehicle was taken to an independent mechanic where it was diagnosed with transmission failure. The contact was informed that there were metal shavings inside the oil pan. The contact was informed that the transmission needed to be replaced. The vehicle was being repaired. The manufacturer was contacted and made aware of the failure. The failure mileage was approximately 65,000.

Filed Oct 12, 2026 · Electrical, Fuel system · PA

Vehicle: 2021 Jeep Grand Cherokee Overland, 3.6L V6 Incident Date: [XXX] Location: [XXX] Safety Complaint: On [XXX], while driving my 2021 Jeep Grand Cherokee Overland on [XXX], the vehicle suddenly lost accelerator response while traveling on the highway. The engine initially remained running, but pressing the accelerator pedal produced no response. Multiple warning indicators illuminated simultaneously, including the electronic throttle control, ABS, traction control, airbag, and four-wheel-drive systems. The vehicle also exhibited unusual electrical behavior, including unexpected activation of the high-beam headlights. The vehicle subsequently became completely inoperable and would no longer crank or start. The sudden loss of propulsion while traveling in highway traffic created a serious safety hazard and placed me at risk of a collision. This incident follows an extensive history of significant mechanical failures and repairs to this vehicle, including: Replacement of the cylinder head following repeated overheating and engine misfires. Complete transmission replacement following transmission-related failures. Replacement of the radiator and cooling fan assembly TWICE within approximately one year, most recently during a trip to North Carolina. Additional mechanical concerns, including a camshaft-related diagnostic trouble code. Despite these major component replacements, the vehicle continues to experience serious reliability and operational failures. These repeated problems have occurred despite attempts to address them through dealership repairs and manufacturer warranty assistance. Stellantis previously extended the vehicle's warranty as a goodwill gesture following earlier issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 8, 2026 · Airbags, Transmission · 42,000 miles · NY

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while driving 5 MPH, the vehicle jumped. The contact stated that while driving 8–9 MPH, the vehicle jerked, and there was an abnormally loud sound coming from the vehicle. In addition, the air bag warning light was illuminated. The dealer was made aware of the failure. The failure was not duplicated. The vehicle was not repaired. The failure reoccurred. In addition, the contact stated that the transmission was replaced in 2025. The contact was informed that the air bag was not covered under unknown recall. The failure mileage was approximately 42,000. The VIN was unavailable.

Filed Aug 25, 2026 · Electrical, Transmission · TX

Final drive control module, transfercase control module went out. Causing “Service 4WD” message Check-engine/MIL light 4WD system becoming unavailable Trouble codes related to the drivetrain control module Intermittent 4WD problems Speed issues

Filed Aug 4, 2026 · Fuel system, Transmission · CT

Electronic Throttle Control warning light comes on upon starting vehicle while extended crank occurs. When starting car, the push to start feature will not turn over and continuously cranks multiple times. Issue is intermittent- never know when it will happen which makes it difficult to replicate at service center. Took car into 2 mechanics on separate occasions and finally to the Jeep dealership for service. Because issue couldn’t be duplicated- nothing was done. However, recently while driving, same extended crank pattern noise and unstable/rough propulsion occurred while driving on the highway. Same Electronic throttle control warning light came on along with the check engine light. Also cruise control and the auto On Off feature became disabled. I scheduled service with my mechanic as soon as possible and they found the stored code was related to Technical Service Bulletin 2014-004-25 REV.B. This bulletin lists the symptoms I described yet the dealership did not perform the fuel pressure Test and Replace Fuel Pressure Regulator. I called the dealership to schedule warranty service for this TBS and they gave me difficulty acknowledging the TSB was issued for my make/model/year and scheduling a service appt. I spent the last few hours reading all of the complaints on the federal safety agency for 2021 Jeep Grand Cherokee and it is alarming how many of the complaint are for this specific issue. It is dangerous for anyone on the road to be driving in a vehicle you can’t rely on to propel you forward when you press the gas or stall due to faulty fuel pressure regulator amid traffic. An investigation should be done. Furthermore, in reviewing other recalls, I found this is a recurrent issue for Jeep. It appears they’ve been various safety recalls issued for this in the past for vehicles made from 2011-2020. How they haven’t addressed it in new models is appalling. For owners of the vehicle, it’s difficult to have any leverage with dealership since it is not easy to replicate on demand.

Filed Apr 6, 2026 · Lights, Transmission · 50,000 miles · CA

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal and attempting to overtake another vehicle. The RPM was extremely elevated; however, the vehicle failed to respond as intended. The contact pulled over to the shoulder of the roadway and restarted the vehicle before resuming normal driving. The contact became aware that, when shifting between automatic and manual driving modes, the vehicle operated normally without hesitating. The vehicle was taken to several dealers on several occasions; however, the dealer was unable to duplicate the failure or determine the cause of the failure. In addition, the headlights occasionally shut off unexpectedly while driving at night. The contact would pull over and wait for the headlights to return before resuming normal driving. The manufacturer was notified of the failure and informed the contact that there were no recalls associated with the VIN for the failure. The vehicle was not repaired. The failure mileage was approximately 50,000.

Filed Apr 2, 2026 · Engine, Suspension · MO

BE ASVISED, THIS REPORT MAY BE INTERCEPTED, DELETED, HIDDEN, OR MODIFIED UPON RECEIVING. the federal safety agency Vehicle Safety Complaint Complainant: [XXX] [XXX] [XXX] Vehicle: 2021 Jeep Grand Cherokee ------------------------------------- SAFETY DEFECT COMPLAINT – POST-REPAIR VEHICLE CONDITION I am reporting a serious safety concern involving my vehicle following collision repairs performed by Gerber Collision & Glass under a claim handled by State Farm Insurance. After the repair, the vehicle began exhibiting multiple safety-related issues, including: - Steering instability and shaking - Engine performance issues and abnormal noise - HVAC malfunction - Persistent chemical and/or coolant odors - Physical symptoms while driving, including dizziness, lightheadedness, and shortness of breath I returned to the repair facility with photographic evidence showing parts with visible wear and damage that appear inconsistent with proper replacement. Despite this, no diagnostic evaluation was performed, and no corrective action was taken. The repair facility has refused to address the condition of these parts, and the insurer has refused to authorize further inspection. Additionally, there are discrepancies between the insurance estimate and the final repair invoice, raising concerns about whether the documented work matches what was actually performed, including work involving structural components such as the cradle/subframe. I believe this vehicle may be unsafe to operate and that the repair may have introduced or failed to correct conditions that pose a risk to driver safety. I request that this matter be reviewed as a potential safety defect related to post-collision repair. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 16, 2026 · Transmission · MI

Repeated cam shaft failure. The vehicle had a sudden loss of power. This has happenbed three times in the last 12 months. It is currently at a stellantis dealership in michigan. There is usually n o prior warning. The check engine light comes on as soon as the issue starts.

Filed Jan 6, 2026 · Transmission · KY

35000 miles 4 wheel drive transfer case went bad. Company honored full repairs. I was the second owner of this vehicle.