Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

2003 Hummer H2

drivetrain Problems

Worst 2003 H2 drivetrain Problems

Find something helpful? Spread the word.

Click on a problem below to read more.

Loading ...

one sec.

Stay Up to Date

Get notified about new defects, investigations, recalls & lawsuits for the 2003 Hummer H2:

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

Compare Hummer H2 Model Years

Curious how the 2003 H2 compares to other years?
Check out our Hummer H2 overview to see the most problematic years, worst problems and most recently reported complaints with the H2.

Hummer H2 Overview

Add Your Complaint

Bump the H2 problem graphs up another notch. Get answers and make your voice heard!

Become a Fan & Spread the Word