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Security bypass

Tiny
ZACH RUDD
  • MEMBER
  • 1999 GMC SUBURBAN
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
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.
Tuesday, June 25th, 2019 AT 10:39 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,465 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.
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Wednesday, June 26th, 2019 AT 11:34 AM

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