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.

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fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
12,990 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.

2007 GMC Sierra 3500 transmission problems

transmission problem

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2007 GMC Sierra 3500 Owner Comments

problem #1

Oct 062009

Sierra 3500

  • 12,990 miles


The contact owns a 2007 GMC Sierra 3500. While driving 45 mph the brake light warning and the ABS lights illuminated on the instrumental panel. The headlights began to flicker; however, after shutting the engine off and checking under the hood the contact was unable to diagnose the failure. When he restarted the vehicle the brake light shut off and without warning, the transmission began to shift up and down at will. The dealer stated that the computer did not register any failure codes. The dealer also stated that if the failure recurred to allow them to diagnose the failure before shutting the engine off. The VIN was not available. The failure mileage was 12990 and the current mileage was 13050.

- Shippenville, PA, USA

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