2010 Hummer H3 electrical NHTSA complaints: Electrical System

NHTSA — Electrical System Problems


hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
55,375 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.

2010 Hummer H3 electrical problems

electrical problem

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2010 Hummer H3 Owner Comments

problem #2

Jan 112015


  • 30,450 miles


My heating and ac blower motor stopped working on a vehicle that has less than 31K miles on it. The estimated repair costs are 500$, not including the tow, being that it is the middle of winter and the closest dealership is 20 miles away. Additionally, the time off of work and ebing without a car for a week. I have heavily researched this issue and it has been reported thousands of times and is a well known issue and GM has not issued a recall. The problem is that a faulty electrical short causes a wiring harness to melt, (smoking) with a burning smell and black residue. This is a major fire hazard and the recommended fix from the dealership only replaces the harness, buy does not address the core issue causing the fire hazard. This is like replacing burnt drywall to address faulty house wiring.

- Chicago, IL, USA

problem #1

Jun 132013

H3 5-cyl

  • 80,300 miles
I was driving home and the fan on the A/C stopped working. Shortly afterward I detected a burning odor. I ended up replacing the resistor and wiring harness for the A/C blower motor. The resistor was burnt and the harness wire was slightly melted. I am concerned about the potential for a fire if this happens again.

- Dayton, TX, USA

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