Jeep Grand Cherokee Engine Problems

Engine complaints by model year

Which parts fail

• Engine
  220
• Engine › Gasoline
  177
• Cooling system › Fan
  152
• Cooling system
  90
• Exhaust system › Manifold/header/muffler/tail pipe
  56
• Exhaust system › Emission control
  26
• Exhaust system
  23
• Cooling system › Radiator assembly
  21

Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).

Mileage when the problem started

• Under 25k
  45417%
• 25k–50k
  38915%
• 50k–75k
  47618%
• 75k–100k
  51720%
• 100k–150k
  53621%
• 150k+
  2369%

What owners report

The contact owns a 2026 Jeep Grand Cherokee. The contact stated that the vehicle was idling roughly, shuddering while turning, and hesitating while accelerating. The failures had occurred approximately three times. The contact stated that while his wife was driving approximately 15-20 MPH and attempting to merge onto the highway, several unknown warning lights illuminated, an alarm sounded, and there was an abnormal burning odor, prompting the driver to pull over to the side of the road, where the vehicle lost motive power. The vehicle was restarted after several minutes and operated as intended. Additionally, the contact stated that while making a left turn onto a street, the vehicle stalled, nearly causing a crash with oncoming traffic. The contact promptly shifted into Park (P), restarted the vehicle, and continued driving. …

The contact owns a 2026 Jeep Grand Cherokee. The contact stated that the check engine warning light illuminated and started blinking quickly before remaining continuously illuminated. The vehicle was jerking, and while it was in park, it vibrated excessively. The vehicle was taken to the local dealer; however, the cause of the failure could not be determined. STAR engineers later determined that the spark plugs were inoperable. The vehicle was repaired, but the failure recurred shortly afterwards. The vehicle was then towed back to the local dealer, but was not diagnosed or repaired. The contact requested a loaner vehicle, but the request was denied. The manufacturer had not been contacted. The failure mileage was approximately 788.

The contact owns a 2025 Jeep Grand Cherokee. The contact stated that while driving 68-69 MPH, the vehicle unexpectedly decelerated to 11 MPH and went into LIMP Mode, shifted to park, and then shut off unintendedly. The vehicle coasted off the highway safely. The gear shifter was not in park, and the message "Auto Park not Engaged" was displayed. The vehicle was towed to the local dealer, but was not diagnosed or repaired. The vehicle was previously towed to the local dealer, where it was determined that the START/STOP button needed to be replaced. The DTCs retrieved were: B1A70-09, B1A70-2A, and B1A7D01. The vehicle was repaired, but the failure persisted. The vehicle was towed to the local dealer, who was unable to determine the cause of the failure. The manufacturer was contacted and opened a case. The failure mileage was approximately 5,781.

The contact owns a 2025 Jeep Grand Cherokee. The contact stated that while driving at highway speeds the engine had suddenly revved very high and the RPMs had increased but the vehicle had failed to accelerate and began to reduce speed. The vehicle was driven to the shoulder and parked. After restarting the engine the vehicle operated as normal. The contact indicated that the failure had occurred on multiple occasions. The vehicle was taken to the local dealer who was unable the diagnosed a problem and no service was performed. The manufacturer was not yet contacted. The failure mileage was 3,600.

The contact owns a 2024 Jeep Grand Cherokee. The contact stated that while test driving at an undisclosed speed, an unknown warning light flashed on the instrument panel. The dealer informed the contact that the battery was low and that the light had been replaced, while also informing the contact that the vehicle had experienced difficulty starting prior to purchase. Days later, upon starting the vehicle, all warning lights illuminated and the vehicle stalled. The vehicle was towed to the dealer, but the dealer was unable to determine the cause of the failure, cleared the codes, and returned the vehicle; however, the failure recurred. While driving, the steering wheel became inoperable, causing the driver to lose steering control, and the vehicle crashed into a Ford Mustang. A red steering warning light illuminated. A police report was filed. …

The contact owns a 2024 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. In addition, the RPM became elevated. The contact drove the vehicle to the shoulder of the road. The contact then turned off the vehicle. No warning lights were illuminated. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The contact stated that after several attempts, the vehicle started. In addition, the contact stated that the failure occurred once while attempting to drive forward from a stop light. The vehicle was taken to the dealer however, the failure was not duplicated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that due to the failure, the vehicle was unsafe to drive. …

The contact owned a 2023 Jeep Grand Cherokee. The contact stated that while the vehicle was parked under the carport, a loud bang was heard coming from outside. The contact's husband was inside the residence in the back room when the abnormal sound was heard. The contact's husband did not go outside to check the origin of the sound until a second abnormal bang could be heard coming from outside. The contact's husband went to check the sound and noticed that the front section of the residence was on fire. The contact called the emergency number, and the police and fire department were dispatched. The fire destroyed the residence and burned a vehicle that was parked in the backyard. The fire department was able to extinguish the fire. The contact's husband inhaled smoke and was taken to the hospital by ambulance. The contact's cat perished in the fire. …

The contact owns a 2023 Jeep Grand Cherokee. The contact stated while driving at an undisclosed speed and depressing the accelerator pedal, the vehicle hesitated and stalled. The contact stated several unknown warning lights were illuminated. The contact stated that the transmission failed to shift into the intended gear. Additionally, the contact stated that an unusual alarm had sounded while the vehicle was parked. The vehicle was taken to the dealer, where the failure could not be duplicated. The contact was advised that the vehicle was unsafe to drive and could not be returned to the contact. The contact stated that the failure initially started a day after the vehicle was purchased, and the vehicle was taken to the dealer several times. The contact stated that while the dealer's mechanic was test-driving the vehicle, the mechanic was nearly involved in a crash due to the failure. …

Related recalls (8)

NHTSA investigations