Question about 1999 Oldsmobile Alero

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I bought a used 99 alero. the security light keeps coming on and prevents the car from starting for 10 minutes

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  • Oldsmobile Master
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KEYS WORN OUT OR IGNITION SWITCH AND BCM IF FAILING.THE DEALERSHIP HAS TO FIX.BECAUSE NEW KEYS AND IGNITION SWITCH OR BCM.HAS TO BE REPROGRAMMED BEFORE CAR WILL CRANK.

Posted on Sep 29, 2010

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1 Answer

My 2001 Alero Oldsmobile wont start and i replace the battery


does your security light flash or stay on then the theft system is preventing it from starting if security light is u have leave the key on acc for 10 minutes n try starting then

Mar 04, 2015 | 2001 Oldsmobile Alero

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Security system operations on 2001 olds alero


Turn the key to acc and wait about 10 minuter for the security light to go solid or stop blinking

Jun 14, 2014 | 2001 Oldsmobile Alero

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Security light is flashing. car will not start on my 2003 oldsmobile alero


I OWN a 2001 Olds Alero and the same thing happens to mine.. It's an easy fix..
1. Turn the Key to ACC (keep it in this mode for the entire 10 minutes).
2. The security light on the Dashboard will flash for exactly 10 minutes..
3. Once the 10 mins are over, the security light will stay solid..
Wait for the red light to disappear off the dashboard...
YOU ARE NOW READY TO TURN YOUR CAR OFF AND RESTART YOU CAR....

SIMPLE FIX..
I DO THIS ALL THE TIME TO MINE..

Nov 06, 2012 | 2003 Oldsmobile Alero

1 Answer

How do i replace ign. switch on a 99 alero


TO REMOVE IGNITION.FIRST TURN OFF RADIO.TO KEEP FROM LOCKING IT OUT.REMOVE NEGATIVE BATTERY CABLE.WAIT 20 MINUTES.THIS WILL DISABLE AIRBAGS.ALLOW THEM TO DISCHARGE.NOW YOU HAVE TO REMOVE THE INSTRUMENT CLUSTER.REMOVE THE TWO SCREWS SECURING THE IGNITION SWITCH.PUSH THE SWITCH ABOUT 1 INCH STRAIGHT BACK TO CLEAR THE MOUNTING BRACKET THEN LIFT IT UP AND OUT FROM BEHIND THE INSTRUMENT PANEL.DISCONNECT THE IGNITION SWITCH ELECTRICAL CONNECTORS AND THE IGNITION INTERLOCK CABLE.USING THE KEY TURN THE LOCK CYLINDER TO RUN AND PRESS IN THE PIN TO RELEASE THE CYLINDER THEN WITHDRAW THE CYLINDER WITH THE KEY.THE CYLINDER MUST BE REMOVED TO REPLACE IGNITION SWITCH BECAUSE YOU HAVE TO DISCONNECT WIRE TO THE IGNITION SWITCH. IN ORDER FOR CAR TO START YOU HAVE TO REPROGRAM NEW IGNITION SWITCH TO THE BCM AND PCM.TO DO THIS.TURN IGNITION SWITCH TO THE ON POSITION WITH ENGINE OFF FOR 10 MINUTES WATCH THE SECURITY LIGHT. WHEN SECURITY LIGHT EXTINGUISH.TURN OFF SWITCH FOR 5 SECONDS THEN START THE ENGINE.IF STILL DONT WORK TRY THIS PROCEDURE TWO MORE TIMES.IF YOU GET CAR RUNNING CHECK ENGINE LIGHT TURN ON CHECK FOR CODES P1630 P1631 P1632 USE CODE SCAN TO ERASE CODES IF CODES REMAIN LET DEALERSHIP CHECK IT OUT.THEY WILL HAVE TO ERASE CODES AND REPROGRAM THEFT SECURITY SYSTEM.

Jan 30, 2011 | 1999 Oldsmobile Alero

1 Answer

I have a 99 alero. The computer by passenger floor was changed. The computer that replaced it has the same part number as the old one. I turned the key on for 10 minutes and waited to reset the security...


MOST THE LATE MODEL CARS OBD 2 PCM CONTROL FROM 1996 - 2011 WHEN EVER YOU REPLACE THE PCM BEST FOR DEALERSHIP TO FIX BECAUSE THE PCM - CRANKSHAFT SENSOR - ANTI THEFT SYSTEM HAS TO BE REPROGRAMMED.

May 15, 2010 | 1999 Oldsmobile Alero

3 Answers

My 2001 oldsmobile alero will not start, I put gas and it would not crank over. Then the security light started flashing so I turned the key to the on poistion and was waiting 10 minutes and during that...


im just gonna take a stab in the dark here i understand that your security light is on try unlocking your door with your key sometimes you just need to reset the security. otherwise ive seen a security module go bad that may be preventing you from starting it.

Apr 24, 2010 | 2001 Oldsmobile Alero

2 Answers

2000 Alero Security light flashing and wont start


With the new lock cylinder in it, turn the key on. The security light should blink. Leave the key on for 10 minutes, the security light will quit blinking and go out after 10 min. This will reprogram your security system and the car should start. Also leave a battery charger on it while the key is on, If the battery goes dead during the 10 minute reprogram sequence, you will have to start over again.

Mar 08, 2009 | 2000 Oldsmobile Alero

1 Answer

Security System on 2002 Oldsmobile Alero


the most common cause of this is the key, to check this use another working key, if the problem persists the ignition lock cylinder sensor is defective and the lock cylinder must be replaced, the dealer will need to do this as the security system must be re-programed to accept the new key code.

Feb 09, 2009 | 2004 Oldsmobile Alero

1 Answer

Security Light


First, try checking the switch in the door because you could have a crossed wire. you will have to pull out the button and check the wires on all doors and trunk/boot. In the meantime, I will try to find an answer to your question.

Nov 06, 2008 | 1999 Oldsmobile Alero

5 Answers

Security light in 99 Oldsmobile Alero


There isnt a fuse for the theft system. You need to take the coloum cover off. Should be 3 screws and you will see all the wires in there. The ones you need are three togather. White Black and Yellow. Get the car started and cut the yellow wire. The theft light will come on and stay on but will bypass the theft system. If it is a 2 wire system you will see two little metal strips on the upper side of the key. You have to use a ohm meter and measure the resistance of the strip in there. Its a resistor used to tell the theft computer the key is in there. Anyway find out what the resistance is and buy a resistor from radio shack and look under the steering wheel for the 2 very small guage wires in a yellow cover....NOTE not the air bag wires. Simply cut those wires ( the 2 white ones) and on the set going away from the steering wheel strip the wires and put the resistor one one wire and the other end of it to the other wire....That will disable that system. If its the 2 wire and you have issues getting it simply take the car to a car audio place that does remote starts and for a nominal fee they will do it for you. My records show that it has the 3 wire system.

Sep 14, 2008 | 1999 Oldsmobile Alero

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