2008 Hummer H3
Key Replacement - Save vs Dealer in Ventura County
Locked Out? | Help is On the Way

All keys lost is our specialty. While the dealer would require a tow and days of waiting, we arrive at your location and have a new key cut and programmed on the spot.

All keys lost? Here's a discount
2008 Hummer H3
Key Options
Dealer-grade key for a fair, honest price
Stranded? Dealer vs Mobile Locksmith
Emergency key replacement: mobile locksmith vs dealer
2008 Hummer H3 Transponder Key Replacement - Fast, Affordable & Professional
Got a call from a guy at Pacific View Mall in Ventura. He had been inside one of the stores, came out, and his 2008 H3 was just sitting there with zero keys. Lost them somewhere between the food court and the parking structure. He already called the dealer and got the speech: tow it in, wait three to five business days for the key to arrive, then pay a big number.
He did not want to tow anything.
I pulled up, confirmed the VIN, and got to work right there in the lot. Cut a new key blade to factory spec using the code, then seated a fresh Megamos ID13 transponder chip. Plugged into the OBD-II port under the dash and ran the PK3+ all-keys-lost procedure. That clears every old key from the body control module and registers the new transponder from scratch. Once the immobilizer accepted the chip, I programmed his L2C0007T remote for lock, unlock, and hatch.
Then the part that matters: testing. Key turns, engine catches and stays running, no theft deterrent light on the cluster, no DTC codes stored. Remote locks from 30 feet away, unlocks clean, hatch pops.
He sat in the driver's seat for a second and just kind of exhaled. Like the whole afternoon had been holding its breath.
Whole thing took maybe 40 minutes. He drove out of that parking structure on his own, same day, for a fraction of what the dealer quoted him.
Save vs the Dealer on Your Hummer H3 Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
Hummer H3 Rapid Response, Done Right
Rapid response in the field
Hummer Keys: From Panic to Five Stars
Emergency rescues that earned five stars
“I had two Subaru key fobs made and Marco provided excellent service. He stayed persistent through multiple part orders to make sure everything was correct. Very thorough, punctual, and great communication throughout.”
“Tim went above and beyond. I struggled all day trying to program a new FOB and nothing worked. Tim helped me patiently, even recommending cheaper options since I was on a tight budget. He eventually came all the way to Ojai late at night and fixed everything.”
“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”
Hummer H3 Key Service Areas
Locked out anywhere? We respond fast

Lost your keys? We’ll come to wherever the car is





