What's Wrong with the 4th Generation (2019–2021) Sierra 1500?

Sierra 1500 owners have made 16 complaints about the 2019–2021 model years. Using our PainRank™ system we've ranked it 19th out of 32 GMC generations in overall reliability, with real electrical and brakes concerns.

Compare With Other Sierra 1500 Generations

What Owners Complain About

Sometimes it helps just to tally up the complaints and see where the biggest stacks are. Use this information to learn about troublespots or to run for the hills.

Worst Issues

What Breaks the Most

Years to Avoid

4th Generation (2019–2021) Sierra 1500 Key Numbers

  1. 2 model years

    Grouping all models by their year can reveal some baddies.

  2. 16 complaints

    Running tally of owner grievances filed to CarComplaints.com.

  3. 19th in reliability

    Overall reliability rank out of 32 eligible generations.

Recent 4th Generation (2019–2021) Sierra 1500 News

There's a lot of news out there, but not all of it matters. We try to boil down it to the most important bits about things that actually help you with your car problem. Interested in getting these stories in an email? Signup for free email alerts over at CarComplaints.com.

  1. A federal investigation wants to know if rusty connectors are preventing 2020-2021 GM airbags from deploying.

    The National Highway Traffic Safety Administration (NHTSA) has received six reports of severe crashes where the airbags didn't deploy in GM vehicles, despite those vehicles receiving "significant frontal damage." All six crashes resulted in injuries.…

    keep reading article "Government Investigates Airbag Failures in Full Size 2020-2021 GM Vehicles"

  2. You’ve barely had a chance to get your 2019 truck dirty before buzzkill GM comes knocking for a recall of damaged airbag control modules.

    The busted module means the passenger side airbag might not deploy in a crash … or maybe it will? No-one really knows and that’s kind of the point.

    The recall covers the 2019 Chevy Silverado 1500 / GMC Sierra 1500 and is expected to begin on December 26th. I’m glad they didn’t plan it for the 24th, the traffic can be awful with all those grandma and reindeer collisions.

    keep reading article "GM Shipped 2019 Trucks with Damaged Airbags"