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Read closely, This will take 33 mins. to do.

Get in your truck with a watch, Turn key to start mode and as soon as you here the starter, turn key loose not off. Then wait 11 min. no more and no less 11 min. only

After 11 min. turn key off, then repete the same steps 2 more times.

Then after the last step is done, turn key off, Then start truck, Your done.

If truck don't start. Then repete all the steps again, to make sure it was only 11 min. each time.

BEFORE YOU DO ANYTHING CHECK THE SECURITY FUSE IN FUSE BOX.

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Q: How to Reset the security system in a 1999 suburban?
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