2021 Chevrolet Tahoe Reliability Score & Common Problems

Owners report that the 2021 Chevrolet Tahoe experiences significant electrical system issues, particularly with the infotainment and fuel control modules. Complaints frequently mention infotainment screens going black, resulting in the loss of critical vehicle functions such as warning chimes and OnStar connectivity. Additionally, multiple owners describe fuel control module failures that cause the vehicle to stall unexpectedly, even at high speeds, posing a potential safety risk. These issues often surface at varying mileages, with some reports as early as 5,068 miles and others beyond 90,000 miles. Safety implications include vehicle stalls while driving, leading to hazardous situations on highways and in traffic.

Owners report frequent issues with the fuel pump control module in the 2021 Chevrolet Tahoe, often leading to vehicle stalling or failure to start. Complaints commonly describe symptoms such as loss of motive power, inability to restart the vehicle, and in some cases, a gasoline odor inside the cabin. These issues typically occur around 20,000 to 80,000 miles. Safety implications include instances where the vehicle stalls while in motion, posing a risk of loss of control, though no crashes or fires are reported. Prospective buyers should be aware of potential fuel system failures and consider the impact of these issues on vehicle reliability.

Owners report recurring issues with the airbag system in the 2021 Chevrolet Tahoe, primarily involving the "Service Safety Restraint System" warning light. Complaints frequently mention this warning light activating intermittently or persistently, often without clear cause, and at times immediately after purchase. Mileage at the time of these reports ranges widely, from as low as 10,800 to over 98,000 miles. In one instance, a crash occurred without airbag deployment, highlighting potential safety implications. Many owners express concerns about the airbag system's reliability and note difficulties in obtaining timely repairs, often due to parts unavailability or unresolved issues post-service.

Owners of the 2021 Chevrolet Tahoe frequently report issues with the vehicle's braking system. Common problems include brake failure, grinding noises, and high-pitched squeals, often occurring at various speeds. Several complaints mention brake master cylinder failures and repeated replacements, particularly around 35,000 miles. Safety concerns are evident, with reports of crashes and loss of braking power, including incidents where brakes failed to engage at low speeds, leading to collisions. These issues, combined with complaints about the emergency braking system not activating, suggest potential safety risks for prospective buyers.

Owners report several issues with the steering of the 2021 Chevrolet Tahoe, primarily involving difficulty in steering and loss of power steering assist. Complaints frequently mention a grinding or groaning noise while turning, with some noting this occurs more often in cold conditions. These issues appear across a wide range of mileages, from as low as 900 miles to over 140,000 miles. Safety implications are significant, with one reported crash and injury due to a wheel dislodging, leading to a loss of control. Buyers should be aware of these potential steering problems and the associated risks, including the possibility of sudden steering failure.

Owners of the 2021 Chevrolet Tahoe frequently report issues related to engine performance, with common symptoms including loss of power, stalling, and abnormal ticking or knocking sounds. Many complaints describe problems with engine components such as lifters, camshafts, and connecting rods, often leading to engine misfires or failure. These issues tend to occur at varied mileages, with reports ranging from as low as 10,440 miles to over 187,000 miles. Some owners also experience warning lights, including the check engine light, and messages like "Service Electronic Stability Control" or "Loss of Oil Pressure." Safety implications noted by owners include unexpected stalling at high speeds, though no crashes or fires are reported. Buyers considering a used 2021 Tahoe should be aware of these potential engine issues and the possibility of costly repairs.

Owners of the 2021 Chevrolet Tahoe report issues primarily with the seat belt system. Complaints frequently mention problems with the third-row seat belt buckles, which are subject to a recall, yet parts for repair remain unavailable, forcing owners to avoid using these seats. Another reported issue involves the service safety restraint system light activating both while stationary and in motion, linked to the driver's seat. A serious incident includes a crash where a front passenger seat belt potentially failed to lock, resulting in injury. Additionally, an owner describes a near-tragedy involving a child becoming entangled with a seat belt, requiring the belt to be cut for release. These issues typically arise regardless of mileage, indicating potential safety risks for occupants.