2026 Jeep Grand Cherokee L engine problems

Filed Nov 8, 2026 · Engine, Fuel system · PA

While attempting to execute a left-hand turn across oncoming traffic, the vehicle suffered a severe and sudden throttle hesitation and loss of acceleration power. Despite applying pressure to the gas pedal, the vehicle failed to accelerate quickly enough to safely clear the intersection, creating an immediate, life-threatening safety hazard with oncoming traffic. There was about a 6-second delay and this kept happening. Following the hesitation, the vehicle accelerated painfully slowly. Prior to this incident, a heavier rumble or rough idle was noted upon engine startup. There was no Check Engine Light or warning message displayed on the dashboard. Bypassing the issue via Sport Mode was unsuccessful. This is a brand-new vehicle leased only two weeks ago. I am fearful to drive it at this point.

Filed Nov 2, 2026 · Engine · FL

Check engine light came on and vehicle would not accelerate or was having problems with acceleration. Safety was put at risk in a way that did not know if the car was going to go tor completely stop vehicle felt like it was stalling Check engine light on

Filed Oct 13, 2026 · Engine, Fuel system · KY

car doesn't idle well, when attempting to merge into traffic car stalls and hesitates to move. continues to misfire. has been in two dealerships for checking my complaints. [XXX] in [XXX] and Myrtle Beach Jeep. still continues to misfire. very scary to drive because afraid it is going to stop at any time INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 12, 2026 · Engine, Fuel system · KY

Sitting at a red light car stalled. motor turned off and i had to restart my car. Idle mode was off. My car vibrated and then the engine light came on.

Filed Sep 22, 2026 · Engine, Fuel system · LA

Vehicle jerks head back and forth from hesitation and roughing when accelerate in 1st gear from stop to 10 miles hours. Very unsafe and have brought to dealership several times to diagnose and they have one recall On spark plugs replacement that did not change anything. Very unsafe driving like that.

Filed Sep 9, 2026 · Engine, Transmission · MD

August 9, we were driving home when the vehicle jerked 2-3 times then the engine shut off (while in motion). This happened on a windy backroad with no way to pull over. We were able to restart the vehicle and make it home safely. Contacted Jeep on the 10, they said it was due to a spark plug recall. When driving to the dealership that morning service AWD light turned on, Jeep replaced the spark plugs and stared that fixed the problem. Driving home once picked up and service AWD light turned on again. Dealership is now stating it is the Drivetrain control module.

Filed Sep 6, 2026 · Engine, Transmission · TN

The turbo lag in this vehicle creates an unsafe condition when trying to turn onto a busy road, street or highway. It’s inconsistent and in the heavy 3 row SUV completely unpredictable. Today my wife narrowly avoided an accident.

Filed Sep 6, 2026 · Driver assistance, Engine · TX

I am reporting a serious safety concern with my 2026 Jeep Grand Cherokee L. The vehicle has emitted an audible warning, the engine has shut off while the vehicle was still moving, and the D drive indicator began flashing and automatically switches to P park. When this occurs, the vehicle loses propulsion and I am only able to coast to a stop. I then have to manually place the vehicle in Park and restart the engine before the transmission will operate normally again. This has occurred with a quick break due to rapid stopping and this has also occurred after making a right turn with no rapid stop. I did include a photo of the message that appears when this happens that states " autopark engaged shifter autocorrect active". I am currently working with the local dealership for diagnosis of the problem.

Filed Sep 4, 2026 · Engine · MN

Sparl Plug recall on Jeep Grand Cherokee 2026 L Laredo 4x4. While driving my 2026 Jeep Grand Cherokee L Laredo 4x4, the vehicle occasionally jerks/shudders when I shift into Drive and begin moving. The vehicle feels sluggish and does not respond smoothly when accelerating. This has happened even after the vehicle has been running for several minutes. The vehicle is new, and I am concerned that this may be related to a powertrain or transmission problem.

Filed Aug 13, 2026 · Engine · AL

Vehicle: 2026 Jeep Grand Cherokee L Limited Location: [XXX] Safety Issue Description: When using the remote auto‑start with the key fob, the engine starts briefly and then shuts off. When the vehicle is manually started, the check‑engine light immediately illuminates and begins flashing, and the vehicle jerks violently even while in park. The flashing check‑engine light indicates an active engine misfire, which poses a significant safety risk due to potential engine stalling, sudden loss of power, and potential catalytic‑converter damage. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)