Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety. Notes: While the 2004 GMC Canyon doesn't show any major complaint trends, it's mechanically-identical counterpart is the Chevy Colorado which has some engine problems.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
30,675 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 GMC Canyon suspension problems

suspension problem

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2004 GMC Canyon Owner Comments

problem #4

Oct 072016


  • 122,700 miles


On October 5, 2016, I took my truck over to my mechanic to have my brake lines bled as I replaced the right front caliper. When they took the right front tire off, they had shown me that the lower left control arm mount was going to fail. There was no failure as of yet and the vehicle was stationary when the problem was found. It was severely rusted out and cracked, as well as the frame and area around it was severely rusted and holes were visible. So I drove it home and took it over to a welder that has done repairs on the truck before and he said that it was too close to the suspension components and he wasn't going to fix it. So, as of now, I am looking for someone who specializes in automotive welding, but there not too many people here in my area who specialize in this kind of work. Inspection is coming up and I doubt it passes. Mechanically, I have has few problems with this truck and would much rather fix it than get rid of it. Pictures I am posting show the severity of the damage.

- Three Rivers, MA, USA

problem #3

Oct 052005


  • miles
Shimmy, vibration, even small potholes jar the steering to either side.

- Alma, AR, USA

problem #2

Mar 012005


  • miles
Consumer heard a loud knock or bang from underside of 2004 GMC Canyon truck.

- Lexington, KY, USA

problem #1

Apr 012004

Canyon 4-cyl

  • Automatic transmission
  • miles
Purchased 2004 Canyon crew cab with 2.8L 4 cylinder, automatic and 1sc sle option package. Truck appears to have vibration in body that occurs at different speed when a steady speed is held. Usually shakes/vibration is most noticeable at 50~60 range. Have has tires replaced twice, wheels checked and dealer has been unable to find source of problem after over 5,000 miles. Problem appears to be design flaw in Canyon suspension design. Currently in dealer for third visit to try and correct. Truck has had problem since day one and per dealer service manager all of his trucks on lot have similar problems.

- Hendersonville, TN, USA

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