Key fobs not working 2007 Yukon Denali

[Srxgreg]

2007 Yukon Denali the key fobs stopped working I have changed the battery in the fobs and reprogramed the fobs still nothing. I also disconnected the positive side of the battery for 10 min, it didn't help. one thing I did notice was that if I put the key in the drivers door and turn to the lock position twice it won't lock the other doors but if I turn to unlock twice it will try to unlock all the doors. the lock switch on the drivers door works fine and will lock and unlock all the doors.

 

[Geotrash]

The only way I know to properly diagnose this is with a Tech2 or equivalent that can read all vehicle modules. But if you want to parts cannon the thing there is a module that's a likely culprit:

2007 GMC YUKON XL 1500 6.2L V8 Keyless Entry Module / Receiver | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

 

[swathdiver]

Tech2 time.

 

[petethepug]

Not sure if you've got all the info to program the keys / locks correctly. Once you go into the DIC menu to program a new key, all the keys have to be programed at the same time when you're in the menu or only one key will work. I know you're only concerned with the fobs right now though.

Verify that you did not install the battery upside down. YouTube is your friend.

This applies to the 07-10 trucks only. 2011 and up need a locksmith cheat tool, a kit that comes with a blank key and a one-time cheat tool, a Tech2 or have the AutoSync OBD product installed in the truck which allows you to add keys like the 07-09 trucks.