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.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
23,991 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 1500 cooling system problems

cooling system problem

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2004 GMC Sierra 1500 Owner Comments

problem #2

Feb 202009

Sierra 1500

  • 47,982 miles


Heater core/no heat sometimes/found carpet wet on pass. Side. Seems in checking around hardly never@47,000 mi. Spent $1200 to replace it. Apparently must remove seats, console, and entire dash to replace!!! im really, really made about this!!

- Warrington, PA, USA

problem #1

Jul 172007

Sierra 1500

  • miles
I also had to have the actuator replaced on my GMC 2004 truck. It was blowing hot when the A/C was on and should have been cooling. It was not cheap either, it also had to be recalibrated in the computer system. I didn't expect that to happen to a new vehicle.

- Longview, TX, USA

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