really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,277 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.

2005 GMC Sierra transmission problems

transmission problem

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2005 GMC Sierra Owner Comments

problem #4

Jun 152006


  • miles


Returned to dealer 4 times for: Brakes going out (4 new sets installed) abnormal wear on tires (F) valves chattering at 10-65 mph returned to dealer 3 times for: Steering sector knocking front axle making warping noise transmission clunking when shifting up or down returned to dealer 2 times for: Various electrical/light problems smoking in passing gear or hard take off all of the above problems are still on-going and have not been repaired.

- Canton, GA, USA

problem #3

Apr 242006

Sierra 4WD 8-cyl

  • Automatic transmission
  • miles
Transmission makes a noise all the time. Brought in to the dealer 5 times in the past 7 months for the same problem.

- Fullerton, CA, USA

problem #2

Jan 112005

Sierra 8-cyl

  • Automatic transmission
  • 4,609 miles
The contact owns a 2005 GMC Sierra 1500. The truck had a transmission leak. After five times trying to correct the problem he let the vehicle go back, and lost money on the truck when he traded it in. He had the receipts available. They replaced seals on the rear shaft and the rear shaft housing. He called GMC customer service they had a kit so they had to replace a bunch of seals in it. Three weeks later the vehicle was leaking again. The vehicle has been in the shop 4 times for the same problem since the date of purchase which was November 15, 2004. Also, had problems with the cd player. They corrected the problem by replacing the entire cd player.

- Newport News, VA, USA

problem #1

Feb 152005

Sierra 4WD 8-cyl

  • Automatic transmission
  • 500 miles
The engine has died, once while driving and once at a stop sign. The transmission was jumping and was put in neutral to steer to another lane. The other time there was no sign of a problem before engine stalled out. There has been many times this has been in the shop due to transmission problems. Have been with GM a few times and they came to the conclusion that they would send a representative to check out the truck. They never sent one, as of today, GM said that they didn't do that. Consumer wanted a buy back. Consumer talked to BBB today, they said that the consumer might be getting a call from GM. Consumer had the vehicle in the shop 3 times, all due to transmission and engine related problems. Dealer has tried to fix problem 3 different times, but that is not working and has made condition worse than before.

- Greenwood, AR, USA

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