Are GMC Trucks Reliable? The Complete 2025 Buyer's Guide

Reliability is key for pickup trucks. Many people turn to GMC for dependability because of factors like the lower severe repair probability (only 15% vs the 18% industry average). However, there are a lot of other factors to consider, such as expected lifespan, annual repair costs, and resale value. So, are GMC trucks reliable based on all those factors?

GMC Truck Reliability by the Numbers

To confirm the reliability ratings of GMC trucks, let's take a look at the statistics:

• Consumer Reports Overall Brand Rating: GMC ranks 36/100 (24th out of 30 brands)

• J.D. Power ratings: 2025 GMC Sierra 1500 scores 83/100

• Average annual repair costs: $727 (industry average is $936)

• Expected lifespan: 11.4% chance of lasting 250,000+ miles (1.3x the industry average, ranking 4th among automotive brands for longevity)

• Major repair probability: GMC Sierra 1500 has a 15% probability of severe repairs (compared to the 18% average for full-size trucks)

• Resale value: GMC Sierra 1500 resale score of 82 out of 100

While GMC received a very low ranking from Consumer Reports, it excels in other ratings. It scored high on J.D. Power ratings, and it has a long expected lifespan, low repair costs, and a high resale value compared to other trucks.

GMC Sierra vs Canyon: Model-Specific Reliability

Not every GMC truck is equal. Let's look at how two popular GMC models, the Sierra and Canyon compare.

Sierra 1500 Reliability

GMC Sierras are popular full-size trucks, known for having lower major issue probabilities, annual repair costs, and unscheduled repairs than the average. These trucks are built with a large towing capacity of 13,200 pounds, which is an increase from previous years. Of all the engine options (5.3L V8, 6.2L V8, and Duramax diesel), the 6.2L V8 is the most powerful with 420 horsepower.

Canyon Reliability

As a mid-size truck, GMC canyons differ from larger GMC trucks. The average annual cost of repairs is $548 (lower than the $652 average) and the probability of severe repair is 12% (1% lower than the average). Due to its smaller size, its towing capacity is lower at 7,700 pounds, and it has fewer engine options. If you're looking for a used GMC truck, the 2024 and 2023 Canyons are great since they offer a redesign with advanced features, however, 2022 and older models are reliable options on a budget.

Comparison Points

Both models are great options for overall reliability. The Canyon has lower repair costs, but the Sierra 1500 has much better horsepower and towing capacity. If you need a truck for work or heavy duty tasks, a Sierra is the way to go while a Canyon is better for personal use.

Most Common GMC Truck Problems (And How Serious They Are)

GMC trucks experience some issues that could affect their reliability, such as the following.

Electrical issues

GMC trucks sometimes face infotainment glitches, such as screens freezing and audio issues. Luckily, the vehicles can run with these problems, but it's still a pain.

Transmission concerns

Some GMC vehicles experience rough shifting, specifically those with 10-speed automatic transmission like the Sierra.

Engine problems

GMC faced an oil consumption class action lawsuit for excessive oil consumption on certain models, such as the Sierra, Terrain, and Yukon, which hurts the fuel economy. Some Sierras also faced engine starting issues.

Cost impact

Repairs can range anywhere from a couple hundred dollars for infotainment repairs to thousands of dollars for transmission and engine repairs.

Warranty coverage

GMC trucks have bumper-to-bumper warranty, which covers material and workmanship defects for 3 years or 36,000 miles (whichever comes first). Powertrain components are covered for 5 years or 60,000 miles.

GMC vs Competition: Head-to-Head Reliability Comparison

Compare GMC to similar full-size trucks:

Compare GMC to similar mid-size trucks:

Advanced Technologies That Boost GMC Reliability

A vehicle's reliability varies based on the luxury features it has. Here's how GMC's technology affects reliability:

• Duramax diesel engines - These engines include strong materials and advanced cooling systems to reduce engine issues. However, it's important to keep up with maintenance, such as changing the engine oil and filter about every 10,000 miles.

• Variable Valve Timing (VVT) - This feature optimizes engine performance and fuel efficiency to reduce engine wear.

• Duralife Brake Rotors - These have twice as long of a lifespan as standard rotors.

• StabiliTrak with Traction Control - While this improves stability and control in rough conditions, it can cause wear on the tires and brake system.

• Advanced safety features - GMC's safety features, such as automatic emergency braking and lane keep assist, help prevent accident damage.

Maximizing Your GMC Truck's Lifespan: Maintenance Essentials

Truck buyers need to keep up with routine maintenance to improve their vehicle's reliability. This includes oil changes every 7,500 to 10,000 miles (about $100), transmission services every 30,000-60,000 miles (about $300 to $400), and coolant flushes every 30,000 miles (about $100 to $250).

Maintenance needs vary slightly depending on the model, so reference your owner's manual to find out the unique needs for the Sierra, Canyon, etc. You may need more frequent services if you use your GMC as a work truck.

Keeping up with regular maintenance is the best way to avoid pricey repairs in the future, so follow service recommendations. If any of the warning lights appear on your dashboard, schedule services right away just to be safe.

Bottom Line: Should You Buy a GMC Truck?

GMC trucks can have long-term durability if you keep up with proper maintenance. If you need to tow large items or haul stuff on rough terrains, a GMC truck is great for you, but if you just need a vehicle for everyday use, a different brand may be better. It all depends on your needs.

If a new or used GMC truck piques your interest, browse your local options to find the best fit for you.