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Security system reset?

Tiny
RYPARKAVE
  • MEMBER
  • 1999 BUICK PARK AVENUE
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 270,000 MILES
Car wont start. Replaced ignition switch. Believe its the passkey 3 system in anti theft mode. But doors are still unlocked and accessory power works sometimes but wont completely turn off unless I disconnect battery. I am 3rd owner. Have no key fob and chip is not in key but in ignition lock cylinder I guess. Need to bypass or fix so car will start. Checked fuel and starter etc. Arced starter it ran for 3 seconds then shut off. Tested battery etc. Help please.
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Saturday, March 27th, 2021 AT 10:21 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,861 POSTS
If the security light is flashing you need to reset the system. this guide can help you fix it:

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

Please run down this guide and report back.
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Monday, March 29th, 2021 AT 8:50 AM

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