2008 Hummer H3 engine NHTSA complaints: Engine And Engine Cooling

NHTSA — Engine And Engine Cooling Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
77,368 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.

2008 Hummer H3 engine problems

engine problem

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2008 Hummer H3 Owner Comments

problem #3

Oct 212013


  • 76,212 miles


My radiator cracked and I was told and have read this is a very common problem with the H3 Hummer and Chevy Colorado.

- Agoura Hills, CA, USA

problem #2

Mar 222012


  • 103,000 miles
Crack in the radiator, had it replaced at a independent shop not knowing that this is an on going problem with this modal Hummer. Definatly a flaw somewhere on gms part.

- Belton, TX, USA

problem #1

Sep 242012

H3 5-cyl

  • 52,891 miles
I have a 08 Hummer H3 and just found out that I have a cracked radiator. The vehicle only has 52,891 miles on it. This seems to be happening alot to the 07 and 08 Hummer H3. I think we need a recall on this. All of the forums I have seen have had theirs crack in the same place. All on top of the radiators. This is something you might want to look into. I know personally I am tired of something going wrong on this. First was the rack and pinion with only 50,844 miles and now this. Come on its time for a recall.

- Knoxville, TN, USA

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