- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
I got a lot of information about this security stuff from this website. http://vatspasslockpasskeysecurityhelp.yolasite.com/ When mine started acting up, i did a bypass on it. It was alot cheaper than a dealer mechanic. If you are looking to fix it correctly, I think taking it to the dealer is the best way to go, like said in above post.... Good luck
Hello, Try this: Get in car, turn the key to start, when it don't start let key come back to run (do not turn off) The security light should be blinking, let car set for about ten minutes or until security light stays on steady at that time turn key off for 10 seconds then turn back on (do not go to start) security light will be blinking again wait 10 minutes and security light should go out. Turn key off, wait 10 seconds . Turn key on (do not go to start) security light will be blinking again, wait 10 minuets and security light will go out. AT THIS TIME TURN KEY OFF FOR 10 SECONDS THEN START THE CAR.
It is the security chips in the keys. Has this car been wrecked? Was this car made in Mexico? GM had the bright Idea of creating a security system that would do exactly this, I know on cars made in Mexico (like the HHR) You can reset the power and get the key back out, but vehicle will have to be reprogrammed with the master key. This involves turning the key from off to run position without ever going past run (i.e. start position) leave key in this position for 30 minutes. Turn key back to off for 30 seconds then back to run for 30 minutes. repeat this step three times. the last time, after 3rd 30 minute period, turn key off for 30 seconds and then try to crank. Please note this only works if the original master key is being used. You can then reprogram the second key following a similar sequence, only master key that is working has to be inserted to let alarm system know that vehicle is not being stolen only that you are trying to reprogram a key. If original master key is not being used then vehicle has to be taken to the GM dealership to program keys and possible key module replacement.
You need to reprogram the security system. Hook up a battery charger. Turn the key on, the security light should flash. Leave the key on until the light stops flahing.(11 minutes) Turn the key off for 20 sec. Turn the key on, do the same thing a second time, turn the key off. Turn the key on. Do this a third time. After the third 11 minutes and the light is off, Start the truck.
Body Control Module (BCM) on both counts. Find a shop in your town that specializes in electrical systems to test it. Beware, these can be intermittent problems, so make sure they keep it until the car does what you have observed. Expect to spend about $450 for the replacment. Dealers quoted me between $700 and $1,100 for the same repair. By the way, a new BCM will probably only last you about 12 months.
Your antitheft system is shutting it down. You need to reprogram it. First hook up a battery charger. Then turn the key on. The security light should blink on and off. Leave the key on for 10 minutes. At the end of ten minutes, the security light will stop blinking. When it does turn the key off for five seconds. Then turn the key on. Repeat the 10minutes. Turn the key off then on. Repeat the 10 minutes a third time. At the end of the 3rd ten minute period , start the truck. It should be reprogrammed and continue to run.
My 1999 alero was doing the same thing a few years back. I took it to the shop and they told me it had something to do with my ignition (it was several years ago so I can't remember exactly what they said). It was sort of an expensive fix. It hasn't done it since. I hope that helps a little.