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Will not start, battery drained a few days ago

Tiny
MYK246
  • MEMBER
  • 2002 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 225,000 MILES
My battery drained a few days ago and when I charged it up and tried to start my truck it wouldn't start. The lights come on but nothing else happens and there's an icon on the dashboard of a car with a lock on it that flashes, but it only stays on for a couple seconds.
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Thursday, June 16th, 2022 AT 1:49 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Yes, the flashing security light is telling you the immobilizer is enabled. Use your remote and lock the vehicle, then let it sit for about 3 hours, and then unlock it using the remote. This should reset the security system and allow you to start the car. These guides can help as well:

https://www.2carpros.com/articles/how-to-reset-a-security-system

and

https://www.2carpros.com/articles/car-not-running-advanced

Let us know what happens and please upload pictures or videos of the problem.

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Friday, June 17th, 2022 AT 12:02 PM

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