3.5

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
37,000 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2007 GMC Sierra 2500:

Unsubscribe any time. We don't sell/share your email.

problem #1

Dec 182009

Sierra 2500

  • 37,000 miles
As I was leaving las vegas on I 15, I got a message of reduced power. I was just out of heavy traffic, traveling about 70 mph, when the engine slowed to about 1,000 RPM with out warning. Found out later that it was a broken lead wire to the throttle position sensor. The truck had about 37,000 miles onit. The truck is a 2007 2500hd with 6.0 engine. The trucki has never been worked on, and is line new. Dealer installed P/N 88986255 connector. I received half or the cost back after calling GMC. I feel that this is a safety problem. As I was just out of heavy traffic and could pull off of the road.

- Applevally, UT, USA

Add Complaint