2007 Hummer H3

Transmission Problems

2007 Hummer H3 Transmission Problems

Find something helpful? Spread the word.

Stay Up to Date

Get notified about new defects, investigations, recalls & lawsuits for the 2007 Hummer H3:

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

Compare Hummer H3 Model Years

Curious how the 2007 H3 compares to other years?
Check out our Hummer H3 overview to see the most problematic years, worst problems and most recently reported complaints with the H3.

Hummer H3 Overview

Add Your Complaint

Bump the H3 problem graphs up another notch. Get answers and make your voice heard!

Become a Fan & Spread the Word