GMC 1999 serria radio lock code
I need to reset
I disconnected battery and it locks
TxGreaseMonkey
Jan 22, 2011, 01:37 PM
It's best to call your local GM dealer.
ballengerb1
Jan 22, 2011, 05:27 PM
I agree but also look through your owners manual to see if you may have written the code somewhere 12 years ago. They usually give you a small card with the code, I stuck mine in the manual pages