CarComplaints.com Notes: The 2015 GMC Canyon has a significant trend of transmission problems.

Most owners reporting transmission problems with their 2015 Canyon report sluggish shifting or other similar problems with the truck not shifting properly. Although most of these 2015 Canyon trucks are still under warranty, it's not a good sign.

The GMC Canyon is mechanically identical to the Chevy Colorado.

6.2

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
12,383 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.

2015 GMC Canyon fuel system problems

fuel system problem

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2015 GMC Canyon Owner Comments

problem #3

Jun 162020

Canyon

  • miles

A D V E R T I S E M E N T S

When driving the car get hard to steering side to side and a waining light for service come on. Try to get service but when the car is turn off light come off and can't be detected by the diagnostic system. The fuel system I change 3 new fuel cap and still show tide you cap or the engine sign

- Elizabeth, NJ, USA

problem #2

Oct 092017

Canyon

  • 13,000 miles
My 215 extended cab, long bed GMC Canyon slt has 13,000 miles and no accidents or hard driving (almost exclusively driven on the road) with some short hauling of loads locally (1500 lbs or less). No major work has been done to the engine or transmission. Today (9 Oct 17), I was taking a short drive to home depot from my house (~6 mi), almost immediately I began to smell a strong odor of gasoline (travelled half a block)...I had just driven the truck on Friday to work and smelled no odor, so I thought it must be a vehicle in front of me. But the odor persisted and was worst waiting at stoplights. I smelled gas again on the way back home and new it must be my truck. After I parked I popped the hood with the engine running and smelled no gas, upon returning to the cab to shut the engine off, I smelled strong gas again, and looked down under my truck and saw gas slowly dripping on the driveway. I shut the truck off and the gas continued to stream slowly down the side of the tank - it appears to be originating from the where the fuel lines connect to the in-tank fuel pump on top of the fuel tank. I could reach the top of the filler tube with my hand and it was dry, when I removed the fuel cap, there was no pressure so the fuel must be coming from the fuel feed line or the return line connections. After a few minutes with the engine off the leak stopped. The tank was not overflowing because it was only half full. I plan to have the vehicle towed to the dealer in St louis for repairs. I thought the lines might have been chewed by an animal (squirrel), but the lines are steel. I will find out more from the dealer once it is repaired.

- Ofallon, IL, USA

problem #1

May 242017

Canyon

  • 24,150 miles
The truck falls on it's face when accelerating after slowing down. The dealership says nothing is wrong. This is a dangerous situation. I have talked with other Canyon owners and they have the same problem.

- Baker, FL, USA

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