Question about 2005 GMC Envoy
My radio is locked, I need the code to unlock it if there is any or please help me with this problem
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Posted on Jan 02, 2017
SOURCE: Radio Locked 1999 GMC Jimmy
If you press and hold the 1&4 or 2&3 buttons together for 6 - 9 seconds a 3 digit number appears (xxx). Hold the AM FM button a second 3 digit number appears (yyy)
Call 1800-537-5140 when recording starts press 106010*xxxyyy* and it will give you your code
My 97 jimmy wont give me my second 3 digit code but good luck
Posted on Jan 29, 2009
There are only 2 things you can try to fix this yourself: turn off the engine and open the driver side door (to turn the radio off). Wait 5 minutes, start your car.
If that does not solve it, turn off your engine, disconnect the car battery, wait about 5 minutes. Reconnect the battery (negative pole first - black connector) and try your radio again.
If neither one of these two fix your problem, I am afraid only a GM service center or dealership can fix the problem. The Cobalt is notorious for all kinds of electrical issues.
Thanks for using the fixya forums!
Posted on Mar 28, 2009
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