How do you do a sucurity bypass on trucks do have to leave in the on position for about ten min something

Turn key to on position. Leave on for ten minutes then try it

Look at some videos on youtube on GM vat's bypass

Try touching the positive and the negative battery cables together and then hooking them back on battery then this is important 1-- unlock with key (if not locked lock it then unlock all doors with key leave doors open and put key in try to start leave in the on position for ten mins until light stops blinking then try starting it again if it don't start then leave key in on position wait ten more mins and start truck as always hope this helps good luck

Is the security light lit on you dash ? is it flashing ? If so turn the key to the run position an leave it on for ten min. Then if the light goes out ,turn it off for a few min. Then start the vehicle ! If it doesn't start you have other issues an will need to have the vehicle scanned for codes !

leave the key in the on position for 10 min and then shut it off this will get the security light off

You should be able to reset it without the radio. Turn your key forward 2 clicks until right before the car would normally start, leave like this for ten minutes. (No less than ten. Eleven is safe) Turn the key back to the "off" position for 5 seconds and repeat the whole process 2 more times.

So that's forward 10 minutes, back for 5 seconds. Forward 10, back 5. And the final forward 10, back 5. Try to start vehicle.

This is a complete GM Passlock relearn. Should take about 30 minutes. If that doesn't work, you may have something broken. Normally, the passlock doesn't get triggered for no reason. So worst case scenario, you can always bypass the entire system. Here is a great link with a ton of info on Passlock and how to get around it

http://vatspasslockpasskeysecurityhelp.yolasite.com/

hi big end bearings are two stage, 25nm leave ten mins, then 49nm cylinder head bolts three stages 20nm leave ten mins, 40nm leave ten mins then 60nm check after 5,000miles hope this helps

Here is what you do. make sure the battery is fully charged cause you dont want it to go dead during this process or it wont work. step down on your parking brake pedal and leave it down. this will keep the headlights off during the process so the battery wont go dead. turn the ignition key like you were going to start the car then leave the key in the on position. you have to leave the key in the on position for ten minutes. during the ten minutes you will see the anti theft or security light flashing or the display in the instrument cluster. when the ten minutes are up the security light will go out. once the light goes out attempt to start the car. if it doesnt start turn the key all the way back to the off position count to three then attempt to start the car then leave the key in the on position another ten minutes till the light stops flashing again. sometimes it takes up to three ten minute cycles to reset the antitheft system. so basically you do the same thing three times leaving the key in the on position for ten minutes each time so it will take approximately thirty minutes. sometimes it will work on the first try though.

I experienced this problem, intermittant failure to start. This procedure must be done with the truck RUNNING.

Remove the cover off of your ignition switch. On the top there is a small wire connector that, once the truck is running, should be disconnected. This will turn on the 'SECURITY' light. All will be better, except the security light will be on at all times, much cheaper than replacing the ignition switch, however.

leave it in the on position 4 ten mins, security lite will go out, then turn back to off position than start the car, i just had the same problem with my alero.