Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello and thank you for using Just AnswerI'm Paul and I will help you with your Question
if you have another key try a different key
if you still have the passkey problem you can attempt a relearn:
1. With a master Passkey III key (Black), turn ON the ignition, with the engine OFF. 2. Observe the Security telltale, after approximately 10 minutes the telltale will turn off. 3. Turn OFF the ignition, and wait 5 seconds. 4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
let me know how you make out and if you need more help
is the security light staying on or flashing?
do you have a different key you could try?
this indicates the passlock system is not reading the key properly
if it wont relearn you need to plug in a compatible scan tool to diagnose the issue
is the battery fully charged?
a week battery can also cause issues
are the dash lights coming on when you turn the key on?
are the headlights working? and bright?
no lights at all
sounds like the battery has been discharged
have the battery cables checked and put a jump on the vehicle to see if the dash lights come back
the theft system will not cause this issue
but a battery problem will cause the theft warning you saw and the loss of power
put a jump on it leaving the other car running and see if the lights come up
the batry is fully charged
if the battery is fully charged and you are getting no dash lights you need to check the cable connections
if the there is no headlight operation and no power anywhere else you have a problem with the battery connection
how many volts do you have in the battery?
the security warning only came on because of your loss of power.. the loss of power is not caused by a secuirty issue
ill try to boost it and tell you
ok I will be here waiting for your reply
if a boost does not change your situation you will need a test light or a meter so I can have you further test the system
also if you do find the battery was drained you may still need to do the relearn if it does not start with a boost... leave the cables attached while doing the relearn (if required)