Question about Chevrolet Impala
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Posted on Jan 02, 2017
Passlock system is crazy, GM should be terminated for good just for coming up with this system and putting it on all there vehicles. to me this is by far one of the worst goofs of all time, but I think they had it planned as a money making scheme to begin with...Anyways if your security light on the dash is flashing first try unplugging your battery and wait a few minutes and hook it back up. If the light is still on it wont start. proceed to step 2, turn your key forward all the way to the farthest on position. Now go have a drink talk on the phone whatever just wait 15 mins and come back. If the security light is now off, turn the key off and wait 5 or ten seconds and your car should start.. If the light is still blinking or staying on it wont' start. step 3...try a different key if you have one and do the 15 min mess all over again. Hope you have a strong battery. If that doesn't work you probably will need to get your ignition key switch replaced. I Buy them at local part stores, Orielys and off ebay for under $100. The GM dealer wants about 500+ to do this. **** on them, do it yourself or get a friend to.
Posted on Aug 22, 2009
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.
Posted on Jan 18, 2010
SOURCE: how do i reset the
Turn the key on, don't try to start it, let it set on for ten minutes turn it off. do this three times, after the third time your will start. Make sure you have everything else turned off. and if your lights are automatic with the key on, you will have to put a charger on the battery as you do it. because 30 minutes with the lights on will drain your battery. Also you can not disable the security system
Posted on Nov 20, 2010
This link may help you with the security problem.
Posted on May 03, 2012
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