I have a 97 oldsmobile achieva that is having issues starting. The dash lights only come on occasionally when key is on, when dashlights not on the car will start then stall after a couple seconds. If dashlights are on the car starts and runs fine. Sometimes if I leave the key on for a while the dashlights come on and it's good to go, but it seems like it's less and less.. I have notice that on the rear occasion that it does start without the dashlights coming on first, the security light is on. PLEASE HELP ME!!!

SOURCE: 2002 Monte Carlo wont start

sounds like your passlock sensor on the ignition barrel is faulty. you will have to go to the dealer to have it replaced because of the programming after replacement.

SOURCE: 98 Grand Marquis intermittent no start/stalling

crank sencer

SOURCE: 1996 Oldsmobile Achieva: Security light flashes upon startup

Here is what you do, but only when the SECURITY light flashes - if it is always ON or OFF it's no use.
Turn the key in the ignition to ON.
Wait for exactly 10 minutes ( SECURITY light will flash for 10 minutes and then stay on SOLID)
Turn the key to OFF
Wait 5 seconds.
Turn the key in the ignition to ON.
Wait for exactly 10 minutes.
Turn the key to OFF
Wait 5 seconds.
Turn the key in the ignition to ON.
Wait for exactly 10 minutes.
Turn the ignition OFF.

Start the car normally.
It has relearnt the keycode and you're good to go.
NOTICE - it takes 30 minutes to relearn, that's THREE cycles of ON - 10 minutes - OFF.

Good luck.

SOURCE: 1996 Olds Achieva: Security light flashes upon startup

Several GM products, including the Chevrolet Impala and Malibu, the Oldsmobile Alero, the Pontiac Grand Prix, and Saturn Ion, have issues with the Security light coming on. This is many times an indication of a failing Body Control Module (BCM). Initially, the Security light will come on then go off, progressing to a constant on light, before the car will refuse to start. Other symptoms may include erratic action of electronics, a clicking sound coming from the glove box, and the air conditioning failing to blow cold air. I recommend a shop that specializes in the electronic systems of vehicles to diagnosis and make the necessary repairs. They should keep the car until they replicate the symptoms described. A new BCM from GM should cost about $230; plan on another $200 for them to diagnose the problem, replace the unit, and program the new unit. The dealers quote between $700 and $1,100 for the same repair. My experience and the experiences I have read on the internet, indicate the new BCM should last only about a year.

Marvin

• 85242 Answers
• Posted on Oct 07, 2009

SOURCE: 97' oldsmobile achieva turns over and starts, then

do you have a "SECURITY" light blinking on the dash?