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.

4.5

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
24,540 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 Sierra 2500 engine problems

engine problem

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2004 GMC Sierra 2500 Owner Comments

problem #2

Jan 202015

Sierra 2500

  • miles

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

The contact owns a 2004 GMC Sierra 2500. The contact stated that while driving at 70 mph, the vehicle failed to accelerate and the fuel restriction warning light illuminated. The failure occurred multiple times. The vehicle was towed to the contact's home. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was unknown.

- Burt, MI, USA

problem #1

Dec 072006

Sierra 2500 4WD 8-cyl

  • Automatic transmission
  • 49,079 miles
I own a 2004 GMC Sierra 2500 crew cab pickup with 59,000 miles. In the last 4 months the speedometer has been giving incorrect readings, I.e. 70 mph when stopped, 115 when doing 40 mph etc. On occasion, it either doesn't work at all, or the needle is fully pegged. There is no way to tell how fast this vehicle is going. GMC customer service has stated that they can provide no financial assistance for the $320 repair because "they cannot make a business case for it." GMC refuses to acknowledge that this is a pervasive problem throughout many of their vehicles in this model year despite ample documentation of the problem easily found at auto repair websites on the internet. Additionally, previous complaints of this exact nature and exact vehicle have been filed with NHTSA.

- Eliot, ME, USA

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