9.8

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
500 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 #1

Jul 042005

Sierra 4WD 8-cyl Diesel

  • Automatic transmission
  • 500 miles

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

Extreme overheating of 3500 duramax while towing. Loss of power and overheating of transmission and engine. Numerous contacts with General Motors and attorney general in Michigan. GM acknowledges there is a problem but don't know what the problem is therefore no fix for the problem. Are continuing to find a fix. We tow a 5th wheel in the colo. Mountains and this could lead to very serious problems if the engine should blow and we would have loss of steering and braking.

- Kremmling, CO, USA

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