Question about 1993 Buick LeSabre

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Security system shut car down

My security system shut my car down, buick said i need a new steering column because it didnt recognise the keys. Did that put a new one on and the car still wont turn over, but if you by pass the security it will turn over but cut off. What should i do now. What can i do to fix this problem

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  • mickie620 Feb 11, 2009

    Thanks but yes I have new keys and new steering column. The dealership didnt do the work because they wanted to much money and I have friends that work in shops that order what I needed and did the work but now I have the same problem. I just need to bypass the security system then put a after market one on it.....Do you know anyone who can work on that for me....

  • benicrowfeat Mar 18, 2009

    won't do anything but security light comes on, won't turn over.

  • Anonymous Mar 31, 2014

    Car will not turn over. Put new starter and solenoid in and still won't do anything. Could my security system be messed up.



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Man these buick dealerships are making a killing nowadays, the keys have a chip in them that helps a sensor in the steering column recognize that those are the right keys for that car, it's an anti-theft device that sometimes backfires, usaully the culprit is a damage chip in the key, because keys get thrown around and mashed up with other keys in peoples pockets, the key it self is not cheap but it is cheaper than replacing steering column. Get a new key and see if that helps, they should have provided you with a new key if they replaced the steering column and the sensor inside of it. I think dealerships aren't making enough money selling cars in this economy and are making frivolous repairs that don't help fix problems and charge a lot of money in the process

Posted on Feb 11, 2009


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2 Answers

Key and switch busted need to bypass security system how

Mostly the security system cannot be by-passed. It would not be much of a security system if it was easily possible. With some variations a code is recognised when the transponder in the key is in close proximity to an antenna which is in or around the steering or ignition lock and the antenna signal is sent to a black box.
When the code is recognised by the black box or ECU it generates and sends another code to the engine management ECU instructing it to switch on and the engine will then start.

Obtaining and fitting the new steering lock and keys and having the system recoded is likely to be expensive and inconvenient - it is designed that way to discourage vehicle theft and is why these days most car thefts are as a result of successfully stealing keys.

If the car is of low value it is possible to have the engine ECU decoded so it will recognise any code so the engine will start and run. In the UK the procedure is done mail order and takes about a week and costs around £100.

Jan 11, 2016 | Buick LeSabre Cars & Trucks

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When i changed ignition on 2001 ford explorer I ended up having to replace steering column now it wont turn over & the anti theft light flashes & wont stop. what can be done to get car started?

At least you know the anti theft system is working. Jokes aside, I would think that the electronic security system is not recognising the new lock and steering column. You could try leaving the battery completely disconnected for at least 2 or 3 hours to see if the system resets. Reconnect the battery and then try again with the new key. You will have to put the security code back into your radio as well. If this doesn't work, it may need to go to a Dealer to reprogram your electronic system.

Apr 13, 2015 | 2001 Ford Explorer Sport

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99 mercury cougar I lost my key. I replaced my steering column with another steering column with key. My car wont start so what do I do next.

The problem is with the factory security system; you'll need to reset the security code matching between the security system and the code on your keys that came with the new column.

May 17, 2014 | Cars & Trucks

1 Answer

I put a new stairring cloum in my car and now the anti theft security light is on and i cant get the car started after a new stairring cloum...

the key has a small sensor that recognizes the car so the key must match the security system... when changing the steering column with new key you must change security box from passenger side kick panel..

Jul 08, 2012 | 1992 Buick LeSabre

2 Answers

I drove the car to my mothers yesterday, went to my dads got there just finr. We went to leave and the car won't start turn over nothing. The security light is flashing. My dad could get it to start from...

you need to get a new ign. lock cylinder and chip key. Or you can get a lock cylinder and copy your old key with a regular key no chip. Take new cylinder, put old chip key in it. Plug into harness at the bottom of steering column just behind the dash, fine orange wire from existing one in the column. Hide lock cylinder under dash and start car with copy of old key.

Dec 26, 2010 | 1991 Buick Park Avenue

1 Answer

Ignition switch would start but would not lock into position (RUN) and would shut off and then ignition completely locked down and will not move

The ignition key cylinder in a Buick unlocks the ignition and allows the Buick's engine to start. The cylinder contains a switch on the end of it (inside the cylinder) that sends an electric signal to the starter motor. When the ignition key cylinder fails, the Buick won't start. When this happens, you'll need a new ignition cylinder. Purchase replacement cylinders from Buick.
Difficulty: Moderately Easy
Things You'll Need:

  • Ignition key
  • Punch pin
  • Cross-point screwdriver
  1. 1 Remove the screws on the bottom of the steering column on your Buick. These screws hold the steering column cover on. You may need to tilt the steering wheel to its highest position to access these screws.
  2. 2 Turn the ignition key to the "II" position in the ignition cylinder.
  3. 3 Slide the punch pin into the access slot on the bottom of the ignition cylinder.
  4. 4 Push the pin all the way into the access slot while you pull the ignition cylinder out of the steering column.
  5. 5 Insert the new ignition cylinder into the steering column with the key in the "II" position on the cylinder.
  6. 6 Push the cylinder into the column until it "clicks," indicating that it is locked into the column.
  7. 7 Turn the ignition key to the "Off" position.

Dec 15, 2010 | 1995 Buick Riviera

1 Answer

Someone tried to steal my 1995 bruick lesabre

turn it in to your insurance, you are most likely going to need an entire new steering column to fix this.

Sep 11, 2009 | 1995 Buick LeSabre

3 Answers

Installed a new steering column now the security system has kicked in and the car wont start even though i have power

Turn key on for 10 mins. security light should flash for ten min. go off turn ignition off and back on repeat procedure 2 more times total of 30 mins should crank up

Aug 05, 2009 | 1994 Buick LeSabre

1 Answer

When i put the key in the ingintion all dash lights come on but the car will not turnover , its not the battery or starter because i tried to jump it off and it cranked but shut down how can i bypass the...

Replace the ign. lock cylinder. Put old chip key in new cylinder. Plug it in to the connector at bottom of steering column by the dash after removing the wire from old lock cylinder. With duplicate key to turn old cylinder start car. Be sure to clean the battery cables and replace bolts. Hide the new cylinder under dash with chip key in it.

Jun 23, 2009 | 1994 Buick LeSabre

2 Answers

Ignition and key problems...

You have to use the lock cylinder and key from the original column, the keys have a small piece or resistive wire that the sensor in the column reads and if the wrong resistance value is read then the starter or fuel pump are locked out, your car came with a factory security system so don't know why another was added, but the reason above is the problem.

May 14, 2009 | 1997 Buick LeSabre

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