2005 chevy classic new lock and keys starts and runs if off more then 10 minutes antitheft comes on and have to wait 10 minutes starts again any idea?

A nice simple answer, you can't. Think of it this way, the car doesn't know you are the owner, and it is there to stop exactly what you are trying to do. You have two computer ECM and BCM, plus the antitheft module and a number of sensors all trying to stop you. All you have to do is the re-learn procedure. Plan B is an auto electrician or alarm / radio installer or auto locksmith.

30 Minute Re-Learn Procedure

1. Turn ON the ignition, with the engine OFF.
2. Attempt to start the engine, then release the key to ON (vehicle will not start).
3. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
4. Turn OFF the ignition, and wait 5 seconds .

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The Passlock system is notorious for failing. There are 3 different parts of this system that can shut down the car and activate the Antitheft security system. The problem will be one of these 3 things. The key. the ignition lock cylinder, or the TDM. The easiest one is the key. The key will either have a small black chip in the key shaft or a transponder hidden in the key head. If there is a chip, they are known for wearing down and not reading correctly. Try wiggling it, cleaning the chip with alcohol, and taking all other keys off the key chain because it pulls on the key and causes problems. If you have no chip and instead a transponded key, (it will have a little "+" sign by the plastic) you can try performing a relearn procedure. It goes like this.




1. Perform a security system relearn.
2. Let the vehicle sit for more than 10 minutes with the key off.
3. Attempt to start the engine, leave the key in the run position monitoring the security system indicator.
4. After 10 minutes, the security indicator will change state.
5. Turn the key off and wait 10 seconds.
6. Attempt to start the engine. If the engine stalls, wait another 10 minutes with the key on.
7. After the second 10 minute timer has expired, turn the key off for 10 seconds.
8. Attempt to start the engine. If the engine stalls, wait another 10 minutes with the key on.
9. After the 3rd 10 minute timer has expired, shut the key off for 10 seconds.
10. The security system will relearn on the 4th starting attempt and the engine should start and run.
If that doesnt work, you will need to start replacing parts. Like i said, there are 3 parts. The key, the ignition lock cylinder, and the Theft Deterrent Module (TDM). all of these are involved in the Passlock system and could be responsible for shutting down the vehicle. And trust me they are all expensive. I always share this link for this problem because there is so much information on there and will be helpful no matter what you decide to do. If all else fails, there is PERMANENT FIX for this problem. You can bypass all aspects of the system and never worry again. That is also on this link.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Do it three times in a row.

1. Perform a security system relearn.
2. Let the vehicle sit for more than 10 minutes with the key off.
3. Attempt to start the engine, leave the key in the run position monitoring the security system indicator.
4. After 10 minutes, the security indicator will change state.
5. Turn the key off and wait 10 seconds.
6. Attempt to start the engine. If the engine stalls, wait another 10 minutes with the key on.
7. After the second 10 minute timer has expired, turn the key off for 10 seconds.
8. Attempt to start the engine. If the engine stalls, wait another 10 minutes with the key on.
9. After the 3rd 10 minute timer has expired, shut the key off for 10 seconds.
10. The security system will relearn on the 4th starting attempt and the engine should start and run.

Here is a link about the security problem

http://vatspasslockpasskeysecurityhelp.yolasite.com/

1. Perform a security system relearn.
2. Let the vehicle sit for more than 10 minutes with the key off.
3. Attempt to start the engine, leave the key in the run position monitoring the security system indicator.
4. After 10 minutes, the security indicator will change state.
5. Turn the key off and wait 10 seconds.
6. Attempt to start the engine. If the engine stalls, wait another 10 minutes with the key on.
7. After the second 10 minute timer has expired, turn the key off for 10 seconds.
8. Attempt to start the engine. If the engine stalls, wait another 10 minutes with the key on.
9. After the 3rd 10 minute timer has expired, shut the key off for 10 seconds.
10. The security system will relearn on the 4th starting attempt and the engine should start and run.
If this doesnt work, you may have a failure in your system. If the security light is on, and the reprogram doesnt work, you might want to look into bypassing that antitheft system.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

to reset anti theft system--turn key on engine off, for about 10 minutes. after 10 minutes, turn key off, wait 15 seconds, then try to start car. from 97-2005 gms have a theft system called a passlock system. you can go to tubesound.com/passlocksystem. to disable system for good.

all gm vehicles from 97-2005 have a theft system called the passlock system. (how to deactivate system on chevy malibu) turn key on engine off, let it stay on for at least 10 minutes, then turn ignition off, take out key from ignition switch. after 1 minute start the car. you can also go to tubesound.com to disable system for good. --tubesound.com/passlocksystem. ( just type in the problem when page comes up ). have a good day!! vehicle will not start with system blinking. it thinks its being stolen.

Folllow these steps:
turn ignition to "ON" (dont start the car)
leave it open for 10 minutes.
Turn ignition to "OFF" wait two seconds and turn it back to "ON"
leave it open for 10 minutes.
Turn ignition to "OFF" wait two seconds and turn it back to "ON"
leave it ope for 10 minutes.

Turn it on, start the car normally and have a safe trip. Your system has just relearnt the security passkey.
Good luck.

try the 10 minute re-learn:
put key in ignition and attempt to start, let off the key and leave in the run position for about 10 minutes or untill the security light goes out, shut key off and wait 5 seconds, attempt to start vehicle normally, it should start.

lock the car using the key to reset the alarm

turn it on for ten min. the theft light will stay on then without turning ignition off just start worked for my cavalier