No key bypass security system

Tiny
MELANIE BAKKE
  • MEMBER
  • 2004 BUICK RENDEZVOUS
  • 160,000 MILES
No key, for vehicle, I can get it to start and run for approximately three seconds, then security system shuts it back off.
Monday, October 11th, 2021 AT 7:19 PM

2 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

If you do not have a original key available, you will have to program the new key to the vehicle in order for it to function properly.
To do that programming it will require a key programming capable scan tool.

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

I have attached the programming procedure below.

Please let me know of any questions.
Thank you.
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Monday, October 11th, 2021 AT 8:00 PM
Tiny
STEVE W.
  • MECHANIC
  • 12,973 POSTS
To add to the above, it is usually cheaper to have a mobile locksmith create the new keys than a dealer if you do not have the proper key programming tools. The 04 uses a system (pass-key 3) that is integrated into the PCM, BCM and instrument panel and it uses a signal from the transponder in the head of the key to deactivate the system. A locksmith can use the VIN and proof of ownership to contact the factory and get the code to allow them to cut the mechanical key. Once that is done, they simply add the key in as a valid key using a scan tool and security access. There is no real method that bypasses this system.
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Monday, October 11th, 2021 AT 8:46 PM

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