New AT4-So Far Disappointed

Guest9299 · May 25, 2026

Hello-picked up a new 2026 Canyon AT4 a couple weeks ago. Black, spraying bedliner, blackout badge package, nerf bars, 20” GMC wheels. Looks amazing.

Traded in a 2026 GMC Canyon Denali that went to hell at 100 miles. Something about a sensor in the wheels and the wiring being not correct from the factory so the dealer bought it back and I got this instead. Love the truck overall except it’s been annoying.

At 200 or so miles when I was getting the windows tinted they noticed transmission fluid leaking. Took it to dealer it was a cracked transfer case or something. Fixed it. Now at 600 miles the service 4WD alert is on. Never put it in 4wd. Took it to dealer. This time something with wiring again and a fuse that’s apparently the only fuse hosted since the main fuse system?!! lol. Whatever. They ordered the part and will be here this week. Overall disappointed in these Canyons but love the look. Coming from a full size Sierra Denali it’s nice but have lost faith in them to this point. Hoping this solves the issues next week.

pinebaron · May 25, 2026

Welcome. Hope you get to enjoy your new vehicle to its fullest.

gemarsh · May 25, 2026

Welcome.

Thanks for the pictures.

kobra357 · Jun 1, 2026

What horrible luck you have. Having 1 truck to be crap before 100 miles is crazy but for the 2nd truck to go bad before 600 miles is even crazier. Either you have the worst luck ever or the dealership is purchasing trucks from the C team for a discount from the factory. Amazing! I think I would dump this truck too and grab something else. I’m a GM guy and probably most everyone on this site is too but this might make me buy a Toyota. Good luck.

RichP · Friday at 7:05 PM

I feel your pain. I jumped from F150 for 20 years to a 2025 AT4 HD. The cameras went out at 200 miles. Took 6 trips to the dealership to get them fixed. For this kind of money I expected more.

Still love the truck. It's a real head turner in Thunderstorm Grey. But the fact that they have a 3D rendering of the wiring and computers on the salesman's desk to scare you into the extended warranty is a sign that this is how it's gonna be.

Good luck. That's a great looking rig.

gemarsh · Friday at 7:14 PM

RichP said:
I feel your pain. I jumped from F150 for 20 years to a 2025 AT4 HD. The cameras went out at 200 miles. Took 6 trips to the dealership to get them fixed. For this kind of money I expected more.

Still love the truck. It's a real head turner in Thunderstorm Grey. But the fact that they have a 3D rendering of the wiring and computers on the salesman's desk to scare you into the extended warranty is a sign that this is how it's gonna be.

Good luck. That's a great looking rig.

Welcome.

BlueBrute · Saturday at 7:51 PM

Holy moly... what @kobra357 said. Two in a row would have me parking that sucker in the General Managers office and running from the building! Hopefully they get you squared away, if you stick with this one.