How to program a new key fob on a Hummer H3 (and H3T). This guide also applies to Chevy Colorado models from the same era that use the same scan tool programming process. Programming the key fob itself is quick, but there are details you need to know ahead of time depending on your situation, so I cover the important stuff first and then walk through the step-by-step.
This Video Directly Applies To:
2006-2010 Hummer H3
2009-2010 Hummer H3T
2004-2012 Chevy Colorado W/ Factory Keyless Entry RPO Code AU0
2004-2012 GMC Canyon W/ Factory Keyless Entry RPO Code AU0
In this video, I demonstrate programming using both:
- GM Tech 2 (factory dealer-level scan tool)
- Android-based scan tool like Autel (example shown: iCarsoft CR Legend, but many bidirectional scanners with BCM “special functions” can work)
Important notes:
* H3 and Colorado do NOT have a self-programming “button sequence” method. A scan tool is required.
* Every time you program remotes, you must program ALL remotes in the same session (up to 4). Any fob not programmed during the session will stop working
* If your current fob still works but the case is worn out, you may only need a plastic shell replacement (no reprogramming).
* If you have zero key fobs right now, that’s fine. The programming process is the same.
Key Part Number Fob Info:
10335583 – U.S. / Canada (FCC ID: L2C0007T)
15845916 – Europe / Australia / New Zealand (export)
15845917 – Japan (export)
Battery type: CR2032
Keyless entry uses rolling code technology (fob and BCM sync automatically when used in range)
Standard Replacement Key Fob (US Spec): https://a.co/d/51vYxKa
Upgraded Key Fob (USA Spec): https://ebay.us/m/asHfjl
eBay Seller That Sells Upgraded Key Fobs: https://www.ebay.com/str/flipkey
I also show how to set your preferred lock/unlock feedback mode using the Gauge Cluster:
RKE Feedback Settings
* RFA 1: Lights flash on lock/unlock (default)
* RFA 2: Horn + lights on lock, lights on unlock
* RFA 3: Horn + lights on lock and unlock
* RFA 4: No feedback
