Can't Get My 2005 Suburban To Relearn TPM

[Beebe]

Hello all. I just rotated my tires, and was trying to relearn the tires positions with the TPM. It is showing up on the DIC, but they are not the correct tires obviously. I tried the relearn process from the manual and cannot get it to work. It says to switch exterior lights from off to on 4 times. Well I really do not have an off, as I have an Auto setting. I cannot get the horn to chrip. I have gotten it to work before, (did'nt have the TPM valves in though see link) http://www.gm-trucks.com/forums/index.php?showtopic=102691&hl=%2B2005+%2Bsuburban+%2Btpm+%2Breset&fromsearch=1 What the heck am I doing wrong? Thanks.

[Gone Again]

On some of the earlier GMs you had to turn on the key, set the parking brake and then cycle the headlight switch from off (auto) to the parking light position 4 times. Check your owners manual again and follow it exactly and in the order stated.

[SouthCo]

On some of the earlier GMs you had to turn on the key, set the parking brake and then cycle the headlight switch from off (auto) to the parking light position 4 times. Check your owners manual again and follow it exactly and in the order stated.

 

 

yep. my wifes 05 yukon's manual says: set parking brake, turn key to on/run with engine off, cycle headlight switch 4times within 3 seconds and the horn will beep. I tried it and it worked. The headlights are auto so you are cycling it from the far left position to the far right position.

[Beebe]

I still cannot get this to work. What am i doing wrong? I have noticed my brake light does not come on when I push the parking brake, yet it does come on when I go to on/run for a second. Could this be the issue?