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The Passlock security system is the problem. Should be recalled. The resistor workaround at the key isn't always the only problem. I tried it on my 99 Suburban and it didn't do any better with the resister bypass. You need to eliminate the entire security system. Go here for a module to bypass the system completely. Buy the pro module for $179 plus shipping and save yourself the hassle of dealing with it ever again. Or you could go to the dealer and have them replace the entire system for over $1000. They will have to replace the key/tumbler/hall effect switch/wiring and EVO-Passlock module to get it right. Check out my profile page for a list of vehicles affected.

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You have to turn the ignition to the "on" position.. and wait for 10 minutes. The "Security" light will quit flashing and you will finally be able to start your car. I have had to do this -all too often. I've heard you can remove the neg. cable from your battery and wait 10 seconds to reset your computer as well. (Then you have to reprogram your radio and clock!)

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2011-04-18 20:03:25
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Q: How do you reset the security light on a 2001 Alero it won't start while light is on?
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How do you reset the security light in your 2003 Oldsmobile Alero?

When your security light comes on and your car will not start, turn you key to the on position and wait 10 minutes. The light will go off and you need to turn the key to the off position, then restart your car.

What will happen when your security light stays on in your 2001 Alero?

It probably won't start

How do you bypass or reset security system to start 1999 alero olds after replacing ignition switch and key?

You can't bypass or reset security system, bring it to the dealer.

2001 alero wont start due to security light being on?

always on nomatter what i do

How do you reset passlock on 2004 alero?

Turn the key to "on" and let it sit for approx 10 minutes until the 'security' light stops flashing. Turn to off and start as normal.

What would cause a 2002 Alero not to start not even a clicking sound when turning on the key?

security system there is a security reset button in the glove box.

How do you reset the service engine light on a 1999 Oldsmobile Alero?

turn off engine, and start again

How do you reset the anti theft system in a 2003 Oldsmobile alero?

Put the key in the ignition and turn it to the on position. Leave in this position for ten minutes. Turn key to off then to start. This should reset the security and the car should start right up.

How do you turn off the security light on a 2003 Oldsmobile alero because it keeps flashing and wont start?

Turn key over but not on and let set for about 15 min and then start has got to reset itself...also it will eventually go be prepared to spend about 250. dollars =)

How do you reset the anti theft system on 2003 alero?

Turn the ignition switch into the "On" position and leave for approximately 30 minutes. The security light will remain flashing for approx. 10-15 minutes. Then, will turn off and the modulator will reset. Then, turn the ignition to the off position take the keys out and the reinsert and start the car. The "security" light at this point will be off. Due to the security modular, the fuel pump is being shut off to control the theft of the car.

How do you turn off the security light on an Oldsmobile alero?

I've had this problem where I couldn't start my car and it turns out it was because the security light was on. To fix it: Place the key in the ignition and turn it one rotation (so battery is on) then leave it in the ignition for 10 minutes. Restart car and security light will be off.... also car will start!

How do you bypass the ignition security switch in a 2002 Oldsmobile alero?

Yes to bypass,Press on the brake, turn car to as then on let the carburetor fill then, put the car in neutral,then start. If the security light is flashing, the car will not start for 10 minutes. Do not try to start while light is flashing.

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