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Wait 3 minutes until the security light goes off, the try it again. It should fire right up! It's a bit inconvenient, but if it's the worst problem you get from a 17 yr old car, be thankful for it. TAke it ot the dealer as they have check out charts. If it has the MAT security system installed, there is a "valet" switch (that may or may not be installed in your particular vehicle). On my 1992 LeSabre, it was a brown and gray wire pair plugged into the last 2 pins on the wiring block. Turn the ignition switch to "Run" - and connect the two wires (or turn on the valet switch if you can find it). If you don't have a valet switch, or there are no wires attached to the pins, you may have to get creative and use a wire to connect the two pins. This disables the starter interlock feature. The red LED should turn on and stay on solid, and your car should start. At least that's how my problem was solved. Best of luck! When my 1994 LaSabre had a problem recognizing the chip in the key (due to the contacts in the lock not working), I managed to bypass the system by locating the two wires (clear tube with two smaller wires in it exiting the steerin column, unlike any other wiring), cutting the cable, and soldering a resistor across the two wires that go to the hidden module thet in turn controlls the starter and sends a signal to the engine computer. Use a resistor of the same resistamce value as in one of the keys for the car (measure resistors with a digital meter). There are a dozen or so values used. You loose the extra protection of the chip, but the fix is low cost.

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โˆ™ 2009-02-26 19:40:57
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Q: What do you do if a 1992 Buick LeSabre Security Light came on and you can't start the car?
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