If this was repaired by the dealer before take it back many repairs are warranted for the time you own the car.
SOURCE: dont know how to reset or bypass gm theft system car is not starting .It tries and quits.
this is one way to reset it :
first make sure the battery is fully charged , then do the following:
key in the ignition but do not crank the motor, just leave it at the
ignition mode for ten minutes ,then turn it off POSITION for 5 seconds then REPEAT again 2 more times. at the 3 rd time youre gonna notice the ANTI THEFT light on dash to blink. when doing the last step , remove key , inserted again and turn on motor , good luck , AJ
SOURCE: theft system passlock on 2003 chevy malibu. theft
yr gonna have to get the passlock key and punch it into the radio so u can solve ur problem most chevy dealships can assist you with that.
SOURCE: 02 Blazer wont Start, Passlock?
I had the same problem when I replaced my multiswitch. I set off the "passlock 2" system that my blazer was equipped with because I didn't disconnect the battery before I took out the bad switch and put in a new one. That ended up blowing a fuse labeled "TBC." Its located in the fuse box in the engine compartment. Its a 10 amp. I know you said you checked all the fuses, but I would double check that one.
SOURCE: pass lock problems
Your Passlock may need to relearn the ignition keys, if the
ignition lock has gone bad like my in-laws Grand Am Gt, here is what i
did so they will not get stranded any more. Buy a Passlock by pass
module for around $70.00. You can order one from GMPASSLOCK.COM in the
mean time try resetting the Passlock. Good luck
Ignition keys relearn takes about 30 min to do. 30-Minute Learn Procedure
1.) Turn ON the ignition, with the engine OFF.
2.) Attempt to start the engine, then release the key to ON; the vehicle will not start.
3.) Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF.
4.) Turn OFF the ignition switch, and wait 5 seconds.
5.) Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes.
The vehicle is now ready to relearn the Passlock
Sensor Data Code and/or passwords on the next ignition switch turn from
OFF to CRANK Important: Turn the Ignition Switch OFF. The vehicle
learns the Passlock Sensor Data Code and/or password on the
next ignition switch transition from OFF to CRANK. You must turn the
ignition OFF before attempting to start the vehicle.
6.) Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password.
7.) With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles.
Without a scan tool you may have momentary starter interruptions while history clears itself.
SOURCE: passlock system in my 98 Chev Tahoe needs reset.Is
unlock door with key?
or after it dies leave key on for 10 min-
theft light will go out
then start without shutting off key
that should do it
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Usually answered in minutes!
Hi mary_schombu, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Do you have the passlock with the resistor pellet in the key and the short wires on the shank?
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