pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
4,169 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 cooling system problems

cooling system problem

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2005 GMC Sierra Owner Comments

problem #2

Sep 082006

Sierra 4WD 8-cyl

  • Automatic transmission
  • 7,838 miles


Since we purchased the 2005 GMC Sierra we have had problems with the radiator hose bursting within the first few months and having to have it towed. Since then we have had several overheating problems. The dealer constantly says they can not find anything wrong. We insisted they change the thermostat on one of our times there = they replaced that and a hose. We came home and anti-freeze was leaking. We thought it may be they overfilled it. Then it kept leaking and the truck overheated again 4th or 5th time. This was just driving home from about 10 miles. We had it towed in again and again were told they can find nothing wrong!!! we want answers to this problem. This truck is used for our business and in a year have had to have a new vehicle towed in 3-4 times and driven in. We want answers. We suggested they change the water pump after talking to another mechanic and they said they had problems with that in a different year truck, but have since fixed it. So instead they send you home and do nothing.

- Clarence Center, NY, USA

problem #1

Jul 042005

Sierra 4WD 8-cyl Diesel

  • Automatic transmission
  • 500 miles
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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