Chevrolet
Monte Carlo
26

Engine Starts and Stalls Due to Secutiry System Fault on Chevrolet Monte Carlo

Problem Description and Possible Solution

The engine may start and stall with the security light flashing. This is commonly caused by a failed passlock sensor which is part of the ignition lock cylinder. A secondary cause could be the ignition switch itself. Worn contacts inside the ignition switch can cause voltage drop issues which can affect the passlock system. Proper diagnoses should be performed before replacing any parts.

Problem Data
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Average mileage: 139,968 (98,000–200,000)
Engines affected: 3.1L V6, 3.4L V6, 3.8L V6, 3.8L V6 Supercharged
9 model years affected: 1997, 1998, 2000, 2001, more2002, 2003, 2004, 2005, 2007
26 people reported this problem
Comments
Viewing 1 - 10 of 10 comments
Went to start my car today and I got nothing. I though it was just the battery like something got left on but when I jumped it it would start for about 2 seconds and then die but the battery was taking a charge. Need to know how to fix.
My security light have been coming on for a while. I called the dealer they a price of almost $600.00 to fix the problem. The car will start after 10 mins, but the key must be turned to on postition, then after 10 mins the car will start. I have called and complained to gmac, they we're pretty much that's your problem. My car has been doing it for over a year. Some days the security light won't come on at all on others 3 to 4 times a day.If you notice the light on and go shut off the car crank it up again right after you shut it off it may reset the sercuity for you, but it doesn't work all the time.i can say theirs nothing worse than to be stuck somewhere and the car won't start for 10 minutes. I BOUGHT THIS CAR BRAND NEW, AND HAVE HAD NOTHING BUT PROBLEMS WITH IT.PLUS, IT LEAKS WATER INTO THE DOOR PANELS AND THE FLOOR BOARD. It's really nice when it rains and i can hear the water swich back and forward in the door.
02 MONTE CARLO SS 3800l NOT WANTING TO START UP HAVE TO WAIT FOR LONG PERIODS OF TIME BEFORE IF STARTS
Thought it was my battery after car not starting but when I looked up why the security light was coming on it was said to be the passlock which makes the x at think it is being stolen and shuts off the fuel intake
IT SUCKS!!! NOT MUCH MORE TO SAY THAN WHAT HAS BEEN DESRIBED "ENGINE STARTS AND STALS DUE TO SECURITY SYSTEM FAULT"...
I have the same problem as everyone else. I have to sit and wait each time for 10 minutes for it to reset in the hopes that it will start. Most of the time it does but every once in a while I have to put it in neutral to start it. Pain in my rear! Why hasn't GM recalled this if so many people are having problems?
Same issue. Car will go weeks and no issue. Than it all a sudden won't start and I have to wait ten mins for it to start. First thought it needed a jump when it first happened. But that did nothing. Just finally started. Alt, battery, fuses in car and in engine and starter tested and all good. Changed relay fuse and this still happens.
My security light was coming on, took to palm Chevrolet, charge me 600+ to fix the BCM, 2 days later it started again, called them at Palm Chevrolet they sent a tow, gave us a loaner a week later now they say its another part of the computer not responding so they have my car for another week an said they gave me a discount but how would I really know, an oh not to mention they kept bragging about the fact they gave me a loaner free of charge so I just paid 693+, next day the car is now over heating...I feel as if I'm being scammed and don't know what to do! Please Help
CHECK ENGINE LIGHT COMES ON,,TIME TO TIME,,ALSO AT TIMES WONT START..HORN SOUNDS OFF,,THEN AFTER A TIME IT WILL START,,VERY STRESSFUL,,CHEVROLET HAS REALLY SLIPPED IN QUALITY..SECURITY LIGHT ON CONSTANTLY
same problem really annoying