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Samantha Posted on Oct 07, 2017

GMC 1999 Jimmy wont start, Security Light Flashing

For some reason the car wont start. Security Light is flashing..
Have checked battery.. still won't start

I think its something to do with the immobilizer? The security key fob thingy! doesn't seem to turn on anymore.

Sorry for this description, I'm a woman, and don't know anything about cars!!

Thanks in advance!

1 Related Answer

Anonymous

  • 44 Answers
  • Posted on Mar 25, 2010

SOURCE: GMC 1999 Jimmy wont start, Security Light Flashing

try disconnecting the battery should reset the system

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