Question about 1995 Buick LeSabre

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Engine light is on. Why? A/C compressor not

Engine light is on. Why? A/C compressor not working. Why? Security light comes on and does'nt allow car to turn on. What can I do to prevent this from happening?

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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 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 and is still working perfectly after 5 years. Don't go to the dealer!

Posted on Feb 27, 2011


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