Hello all, new to the forum. Quick backstory. Wife lost all keys and fobs. Had a new key made from local key shop. Horn still honks when unlocking until key is inserted and turned on, but fine thereafter.

Ordered replacement fob off of flebay. When following directions, after going to the "Relearn Remote Key" area, part of the instructions include selecting the "Set/Reset Button" (aka check mark button) which is not working. I tried the check button on other areas of the information center, and it just won't work. I tried the "hold odometer reset" trick to. No luck. Any suggestions?

2008 Suburban LT

Thanks,
Paul