2021 Jeep Grand Cherokee Reliability Score & Common Problems

Owners report several issues with the 2021 Jeep Grand Cherokee, with sunroof glass shattering spontaneously being a frequent problem. Multiple complaints describe the sunroof exploding without any apparent external cause, often while driving, posing a safety hazard due to potential glass showering into the passenger area. Additionally, there are reports of fires occurring, sometimes while the vehicle is parked or shortly after starting, with at least one being traced to the battery compartment. Complaints also frequently mention problems with the air conditioning system failing prematurely, often around 36,000 to 58,000 miles, leading to significant repair costs. These issues, particularly the fires and sunroof incidents, have implications for safety and could be a concern for prospective buyers.

Owners report several issues with the service brakes on the 2021 Jeep Grand Cherokee. Commonly described problems include warped brake rotors leading to vibrations and shaking, typically noted around 32,000 miles. Multiple complaints detail the automatic emergency braking system engaging unexpectedly, causing abrupt stops without warning and resulting in injuries. Additionally, some owners experience brake system failures, including loss of braking ability and issues with electronic stability control, often requiring repairs such as brake module replacements. These issues potentially pose safety risks, such as loss of vehicle control and unexpected stops, which are crucial considerations for prospective buyers.

Owners report several engine-related issues with the 2021 Jeep Grand Cherokee, primarily involving unexpected engine shutdowns and excessive oil consumption. Complaints frequently mention the engine shutting off while driving, even at high speeds, posing a significant safety risk. Other symptoms include delayed starting, engine misfires, and oil leaks, often occurring around 20,000 to 70,000 miles. Multiple owners describe problems with the auto stop/start system and the intermixing of antifreeze and oil, which can lead to engine damage. These issues can result in loss of power and control, with one injury reported, making it crucial for potential buyers to consider these patterns when evaluating this vehicle.

Owners of the 2021 Jeep Grand Cherokee frequently report issues with the fuel pump, leading to vehicles failing to start or stalling unexpectedly. Typical symptoms include repeated attempts to start the vehicle, the engine shutting off while driving, and being unable to restart the vehicle, often without prior warning lights or alerts. These issues are noted to occur across various mileages, with some reports as early as 1,000 miles and others around 68,000 miles. Safety implications are significant, as multiple owners describe stalling in traffic or on highways, posing risks of accidents. Buyers should be aware of these patterns, especially if considering a vehicle with a similar mileage range.

Owners of the 2021 Jeep Grand Cherokee frequently report issues with the suspension, particularly involving loud noises over bumpy surfaces and components like sway bar links and tie rods requiring replacement. Complaints often describe symptoms such as abnormal sounds, vibrations, and handling difficulties, sometimes at relatively low mileages around 20,000 to 42,000 miles. Several reports mention parts like the rear lower A-frame and air suspension components failing, sometimes attributed to defects rather than external damage. Safety implications include one crash incident where suspension failure contributed to loss of control, and multiple owners express concerns over the potential for accidents due to these issues. Buyers considering this model should be aware of these recurring problems and the associated safety risks.

Owners of the 2021 Jeep Grand Cherokee frequently report issues with airbag deployment during crashes, with eight complaints involving crashes and six reporting injuries. A common pattern is the failure of airbags to deploy in various crash scenarios, including frontal, rear-end, and side impacts, as well as collisions with stationary objects and animals. Complaints often describe the airbag warning light illuminating without prior incidents, and some mention previous recall repairs that did not resolve the issue. Mileage at the time of incidents varies, with some reports noting around 13,000 to 27,914 miles. The lack of airbag deployment is a significant safety concern, particularly given the variety of crash types and the occurrence of injuries, which potential buyers should consider.

Owners report several issues with the vehicle speed control in the 2021 Jeep Grand Cherokee. Complaints frequently mention unintended acceleration, especially when cruise control is engaged, with some vehicles accelerating beyond 100 mph unless manually deactivated. There are also reports of the vehicle failing to decelerate when the brake is applied, leading to crashes in some cases. Mileage at the time of incidents varies, with some reports occurring as early as 15,000 miles. Safety implications are significant, as three complaints involve crashes resulting from loss of control due to these speed control issues. Buyers should be aware of these patterns and consider the potential for speed control malfunctions when evaluating this model.