What are some reasons why my Hummer H3 won’t start?

My H3 has been clicking and refusing to turn over occasionally. What gives? What are some reasons why my Hummer H3 won’t start?

Find out if you’re getting ripped off on your car insurance in less than two minutes.
No spam · No long forms · No fees
Find savings (100% Free)
rating white
3.5k Ratings
Answer provided by
Bonnie Stinson
Answered on Jul 29, 2022
Sorry to hear that! The three most common reasons that a Hummer H3 won’t start are a problematic battery, starter, or alternator problems.
The first thing we’d recommend is checking your battery terminal connectors.
Many H3 drivers report problems with the OE (Original Equipment) connectors. You may want to try swapping out your connectors for aftermarket parts. At the very least, give your battery terminals a good cleaning and see if that helps. Note that this won’t help if the battery is already near the end of its life.
Next, you could try cleaning or replacing the ignition switch. If you’re not accustomed to working on cars, ask for an ignition switch and starter inspection from a trusted mechanic.
Now might be a good time to review your car insurance coverage. Not only are the majority of drivers overpaying, but it sounds like you might benefit from some roadside assistance add-ons. Try using the Jerry app to quickly tweak your coverage or find savings.
Good luck with your Hummer!

Here to save on car and home insurance? Great, you do that. We’ll do everything else.

Sign up in under a minute.
No need to fill out forms or shop around. Sign up in 45 seconds to start saving. Jerry does the rest.
Jerry collects and analyzes your current coverage.
Say hello to Jerry, your new insurance agent. We’ll contact your insurance company, review your current plan, then find the coverage that fits your needs and saves you money.
Get the best options before your renewal.
Jerry does all the picky, busy work by comparing prices and coverage from more than 50+ insurance companies. We compare what we find to your current policy and offer you the three best options before every renewal.

Easiest way to compare and buy car insurance

No long forms
No spam or unwanted phone calls
Quotes from top insurance companies
Find insurance savings — it's 100% free