2020 GMC Yukon Xl
Key Replacement - Save vs Dealer in Ventura County

2020 GMC Yukon Xl Remote Replacement - Fast, Affordable & Professional

Out along the Las Posas Road corridor in Camarillo, an event vendor was loading his 2020 Yukon XL after packing up near the fairgrounds. No fob. He turned out every pocket, checked under seats, asked two other vendors to help look. Nothing.

Two people told him push-to-start all-keys-lost was a dealer-only job. He called me anyway.

When I got there, the Yukon was sitting with the tailgate still open and boxes half loaded. Push-to-start AKL on these K2UC trucks is more involved than a standard transponder job. The BCM holds the immobilizer data and every old fob has to be wiped before new ones can register. I used my ACDP to pull a backup of the immo data from the BCM first, safety net in case anything hiccups, then ran the AKL procedure through OBD with the IM608. His replacement M3N-32337200 paired up clean, all five buttons tested good, and the proximity detection worked at every door handle and the tailgate.

He pressed the start button and the 5.3 turned over while vendors were still breaking down tables around us. He just stood there for a second watching the dash, like he expected it to shut itself back off.

The whole thing happened on site. No tow, no waiting days at a service bay. Push-to-start AKL is not dealer-only. It is tool-dependent. Big difference.

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