AskPatty Certified Female Friendly Logo

Had transmission put in out of a suburban...now the SECURITY LIGHT IS FLASHING AND THE TRUCK WONT START....NEED SOME HELP IN JESUS NAME

Answers from the Automotive Experts

Jessica Howe, Automotive Expert & Coach at AskPatty.com

Hello, 

Thank you for writing in. You are going to want to start by addressing the security issue first, as it is likely whats stopping the truck from starting. The security system could have been tripped during the swap, and you have to try to reset it. 

Turn the key to "On", but do not start it. Leave it in the "On" position for 10 minutes. 

Turn the key off, and back on again, leaving it on for another 10 minutes. 

Repeat this process one more time. Turn the key off, and back on for an additional 10 minutes. 

After the final 10 minute interval, you can try to start the vehicle. 

Good luck!


Contribute to this question:


blog comments powered by Disqus

Related Chevrolet Tahoe FAQs


  • How much transmission fluid does a 2001 Chevy Tahoe require?

    Read More
  • My transmission seems to be shifting late or having a hard time shifting from 1st to ... Read More

  • My 2001 chevy tahoe seems to being shifting late or having a hard time shifting out of ... Read More

  • Is the motor supposed to be in neutral and runing to check transmission

    Read More
  • I recently got my oil changed and TJ Lube brought to my attention my Transmission ... Read More

  • How many quarts does of transmission fluid does my 2001 Chevrolet Tahoe require? Read More

Need Car Advice?

Ask The Experts!

Looking for a New or Used Car?

Search for our Certified Female Friendly® Car Buying Marketplace locations

Help Our Charities