Question about 1996 Oldsmobile Cutlass Supreme Coupe

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I put in a new battery and now the security system won't let the car start. I can't drive the car till this problem is solved Friday night 8:00 pm How can I unlock the security system so that I can start my car. Ed from Vulcan, AB Canada

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The security system (VATS/Passkey) installed on these GM cars is anti-owner more than an anti-theft. There are 3 parts involved:

  1. The chip-key
  2. The lock cylinder
  3. The TDM (aka the brain of the system)
if any of these parts fails or is even slightly malfunctioning, the car stays stuck where you are and you only get a dealer asking you about 1,000$ to fix it. And all the 3 parts have a quite short lifespan. Way too many people got in this situation (including myself). I don't recommend any partial solution or any used parts as it would happen again way too soon to be acceptable and if it happens 100 miles from home (like it happened to me....) it's a big burden. I finally made it to save my beloved 94 Park Avenue (with the exact same system that is installed in your car) with a solution that I found on the internet and that bypasses the entire factory security system, all 3 pieces altogether and you can even remove the TDM at the end and use 99c keys without chip. The product I used is at http://newrockies.com and is still working perfectly after 5 years. Don't go to the dealer!

Posted on Feb 28, 2011

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Use your keyless entry transmitter an hit the unlock button with all doors closed. and make sure u have a good programmd key if you got nuffn u have to c your dealer to have the fault diag'd

Posted on Sep 26, 2009

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Posted on Jan 02, 2017

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It won't start!!!


well put the key in the door lock and then unlock it

If you replaced the starter then you can jump the starter solenoid switch and see if it cranks

testing the starter that is ,,,,

is the security light on >?

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