*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Engine
Oil Filter Housing/Oil Cooler Failure Causing Oil and Coolant Contamination, Serpentine Belt Failure, and Engine Overheating My 2021 Jeep Grand Cherokee Laredo E, equipped with the 3.6L Pentastar V6 engine, has developed a significant oil leak originating from the oil filter housing/oil cooler assembly. A mechanic has identified this assembly as the source of the oil leak and confirmed that its failure is allowing engine oil to mix with the coolant. In addition to internal oil and coolant contamination, engine oil is leaking externally onto surrounding engine components, potentially including the serpentine belt and pulley system. The vehicle recently experienced a complete serpentine belt…
Oct 15, 2026Service brakes
Suspected Right-Rear Brake Caliper Failure Resulting in Sudden Vehicle Stop Vehicle: 2021 Jeep Grand Cherokee Overland 4x4 Incident date: [XXX] Location: Honolulu, Hawaii Approximate mileage: 64,000 miles Affected component: Right-rear brake caliper assembly On [XXX], while traveling approximately 5 mph, my 2021 Jeep Grand Cherokee experienced a sudden, violent mechanical jolt. The vehicle abruptly stopped, jerking forward and backward with substantial force. When I attempted to accelerate again, the vehicle felt physically restrained, as though something was preventing the wheel from rotating. The vehicle would not drive forward normally, and the AutoPark system engaged under certain…
Oct 13, 2026Fuel/propulsion system
I was driving 65 MPH on a highway in high traffic and the Fuel propulsion system failed without any lights or warning. It just stop responding to accerlation. It was extremely dangerous and CDOT had to come rescue us. We are lucky we were not hurt or killed. The 2021 Jeep Grand Cherokee is only 5 years old and has 46,000 miles on it. The fuel pump needs a complete replacement. It is months out of warranty but still there should be 50,000-100,000 miles left on this part.
Oct 8, 2026Electrical system
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…
Oct 11, 2026Air bags
The driverâs seatbelt sensor constantly goes off as not detecting that the seatbelt is buckled, while driving; this causes the alarm to continuously beep and also disables the airbag. Aside from the seatbelt issue, there is a standalone airbag issue that has been detected by the carâs health report multiple times. The drive shaft is also defective, causing the car to shake when the car hits 73 mph. The auto stop/start also disables on its own. I have taken it to the dealership to get all of this fixed but all issues have persisted. There are active recalls on these issues for other 2021 Jeep Grand Cherokees but they are not attached to my vehicle even though my vehicle has the same…
Jan 21, 2023Structure › Interior panels › Dashboard
My 2021 Jeep Grand Cherokee Summit with approximately 39,000 miles. The leather dashboard is delaminating and separating from the substrate. My Jeep dealer has inspected it and checked my VIN. They confirmed that Jeep previously provided extended coverage for essentially this type of dashboard delamination on 2011â2014 Grand Cherokees, but my VIN isnât included. The vehicle is only slightly beyond the 36,000-mile basic warranty, and I donât believe a premium leather dashboard should be delaminating at this age and mileage.
Sep 18, 2026Engine and engine cooling › Exhaust system › Emission control › Catalytic convertor
The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, there was large puff of smoke coming from the driver's side of the vehicle while coming to a stop. The contact became aware of a brake fluid leak, causing a complete loss of brake pressure and braking power. The brake fluid was leaking more when the brake pedal was depressed. The vehicle was towed to a local independent mechanic and the technicians discovered that the catalytic converter was melted, causing severe heat damage to the adjacent brake lines. The contact stated no other parts were damaged. The vehicle was towed to a dealer; however, the technicians were unable to duplicate…
Sep 11, 2026 · 46,116 milesAir bags
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 8â9 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.
Sep 23, 2025 · 42,000 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
