2020 GMC Sierra 1500 Problems

This page lists stored complaints about problems reported for the 2020 GMC Sierra 1500. The complaint count is a record of entries, not a crash count, failure rate, or measure of how likely a vehicle is to have a problem. It also does not establish that every complaint was confirmed or that the same issue affects every truck.

Use the listed complaints to see what owners reported, rather than as a complete measure of reliability. The information here applies to the 2020 model year; complaints can differ across years and trims, and this page does not provide enough detail to compare them. A reported issue may also depend on the truck’s configuration, equipment, use, or maintenance history.

If you need a specification or rating that is not shown in the listed facts, confirm it on the vehicle’s door jamb or in the owner’s manual. For a concern with a specific truck, check its records and have the condition evaluated rather than relying on complaint entries alone.