The Worst Problems for Every GMC Model and Generation

A large pile of crushed cars

Car problems happen. But there's something we can do about it.

By matching owner complaints with recall, investigation and technical service bulletin data we've come up with a list of the most common GMC problems for every model and generation. We've even ranked vehicles by their reliability.

Trending Problems

A few problems that keep popping up. There's plenty more where that came from.

  1. 2015 Canyon Power Steering Loss

    Poor electrical connections inside the steering gear assemblies of the 2015 GMC Canyon can cause the truck to lose its power steering. While the connection can drop out while driving, most owners report seeing a 'service power steering, dri…

    Continue reading article "2015 Canyon Power Steering Loss" The driver info screen displaying a warning about servicing power steering

  2. A/C Condenser Leaking

    GM used leaky air conditioners that buckle under pressure in many 2014-2017 trucks and SUVs. Whether it's busted hoses or leaky condensors, thousands of GM owners are showing up to work with sweat stains down their back. It's such a widespr…

    Continue reading article "A/C Condenser Leaking"

All Problems

What Owners Complain About the Most

Sorting out which topics, problems, and model years have the most overall complaints from owners on CarComplaints.com.

Worst Issues view all problems

What Breaks the Most view all topics

Years to Avoid view all years

The Least Reliable GMC Models

Some models just can't seem to get out of their own way. We've created a list of the least reliable GMC models using data such as complaint volume, average cost of repairs, age of the car when it breaks down, and recall frequency.

All Models

Key Numbers

  1. 15 models

    Each with their own trim levels, bodystyles, and special blend of headaches.

  2. 36 generations

    A group of years for a specific model with the same design, features, and problems.

  3. 31 model years

    Grouping all models by their year can reveal some baddies.

  4. 3,867 complaints

    Running tally of owner grievances filed to CarComplaints.com.

  5. 22,429 service bulletins

    Documenting the process of troubleshooting common problems.

  6. 335 recall campaigns

    Time-sensitive, free repairs for widespread safety problems.

Worst Generations

A generation is a group of model years where little, if any, changes were made. They tend to have the same problems and some generations have horrible reputations for reliability. Here's a handful you should avoid.

See All Generations

Recent GMC 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. GM did the right thing by recalling ineffective seat belts a few years back. It just would have been so much better if they used the right replacement parts.

    Now to be fair, only 2,800 of the over 1 million recalled vehicles ended up with the wrong pretensioner cable assemblies but considering the last recalls were in 2016 and 2018 this probably won't sit well with the owners driving around with the wrong seat belts for the last few years.…

    keep reading article "GM Accidentally Gave 2,800 Vehicles The Wrong Seat Belts in Previous Recalls"

  2. 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"

  5. GM is urging owners of the 2021 Savana to park outside and away from anything that could burn until the vans get repaired.

    Late last year they said the van's batteries could drain when the positive battery cable accidently came in contact with the fuse block assembly. Now they're saying it's less drain, more flame—as in at least four vans have gone up in smoke due to the batteries short-circuiting.…

    keep reading article "GM Recalls 2021 Chevy Express After 4 Battery Fires"

See More News

Having car trouble?

Tell Us What's Wrong With Your GMC

The best way to find out what's wrong with a vehicle is from the people who drive them. Not only do owner complaints help us rank vehicles by reliability, but they're often used to spark class-action lawsuits and warranty extensions. Plus, they're a great way to vent.

Add a complaint