Security bypass

1999 GMC SUBURBAN
150,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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ZACH RUDD
  • MEMBER
  • 1 POST
Is there anyway to bypass the security system so that I can start my SUV? because I replace my key and then cylinder and it will not reprogram the new key. I’m getting frustrated.
Jun 25, 2019 at 10:39 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
Welcome to 2CarPros. You cannot use the vehicle to program a new key if you also replaced the cylinder. You need to have the key entered into the system as a valid key using either a scan tool or a programmer. Usually it is cheaper to have a locksmith do that than a dealer but it depends on the area. As for bypassing it, not really possible to do without having a working key to start with.
Jun 26, 2019 at 11:34 AM
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