Sudden Low Beam Headlight Failure
The 1st generation Envoy and Envoy XL have low beam headlights can suddenly shut off even though the lights themselves are perfectly fine. The issue is a a defective headlamp driver module which is responsible for distributing power to the …
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Fuse Block Connections Cause Engine Stalls
Certain generations of GM vehicles have problems inside the fuse block that cause flickering warning lights and stalled engines. Unfortunately these sorts of problems are often difficult to diagnose.
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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…
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2007-2009 Acadia Transmission Failure
The 6T70 and 6T75 transmissions in early Acadia SUVs are known to slip and overheat due to design defects. But the real problem is a busted 3/5/R wave plate that can destroy the entire transmission in a near instant.
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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…
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Shift to Park Warning Message
Leaking coolant from a cracked intake manifold gasket is an extremely common problem on most GM vehicles made from the late 90s to the mid-2000s. Most experts agree that the problem stems from GM's 'DexCool' coolant which erodes away at the…
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The Sierra Has Terrible Headlights
For such a big, rugged truck, the GMC Sierra has some of the worst headlights on the road. But why?…
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Vortec Excessive Oil Consumption
Leaking coolant from a cracked intake manifold gasket is an extremely common problem on most GM vehicles made from the late 90s to the mid-2000s. Most experts agree that the problem stems from GM's 'DexCool' coolant which erodes away at the…
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GMC Vehicles with Recalled Takata Airbags
Some GMC models are part of the Takata airbag recalls. Takata, a parts supplier for numerous automakers, manufactured defective, shrapnel-hurling airbag inflators that have affected over 34 million+ vehicles.
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The Most Common GMC Problems
GMC vehicles tend to break in certain ways. So we comb over complaint, recall, and investigation data to come up with a list of the most likely problems an GMC owner is going to face.
We can then compare that to lawsuits, service bulletin repair information, and owner submitted ideas to give you some options for what to do when a specific problem happens.
See Something We're Missing?
There are so many problems out there it's easy for us to miss some. Let us know if there's a problem you'd like to see us cover.