GM's PassLock 2 system is garbage, and also hilariously easy to bypass with a little knowledge.

It relies on reading the resistance from having the key inserted. If the resistance value is off, it thinks you're trying to steal the car, and refuses to start with the infamous flashing "SECURITY" light.

After having this happen 3 times (once before a job interview, once at a gas station, and another at my cottage) I got fed up with wondering if it would start or not, and found out there is a way to permanently disable it.

In GM cars, there is a bundle of three wires which go from the Body Control Module to the Ignition Switch. They are Black (analog return), White (power), and Yellow (analog data). The Yellow wire is the wire that sends an analog signal to the Body Control Module to tell it that a key has been used to turn the lock cylinder to the ON position.

The three wires can be accessed by removing the radio from the dashboard, and reaching through a hole in the radio compartment toward the steering wheel.

By splicing a resistor into the Yellow and Black wires, it bypasses the PassLock system, and always allows the car to start, as it will always read a consistent value.

Today its about 500 degrees below zero, give or take a few degrees, I partially dig my car out of the snow, get in and try to start it and... nothing. Not a single sound, no starter, nothing but its normal dinging. My "security" light is flashing but aside from that the temperature is the only difference. I tried the 10 min reset thing and it worked, but I worry it will occur again. I love GM cars, but they all seem to crap out just after warranty and GM disregards all problems. I've has the infamous lower intake gasket leak, bulbs going out, Window motors craping out, ect. and now i can add this to my list of problems everyone else has as well.

I SWEAR the next time the stupid car starts its going to have an unfortunate accident with a tree. I am going to kill my car. these damn security thing had happened twice in the past week, and it seems always when i am running late for work, or trying to come home from grocery shopping with frozen foods in the trunk. I haven't looked through all the other complaints yet, but i am hoping that once i get the car started ( by leaving the keys in it at on for 20 min) if it starts, that the mechanic can take out the security system or do something i am getting really tired of ths crap!

Well, add my car to the list of those which decided to just "Quit". When my son took the car fishing, it just refused to start at the end of the day. It had been running fine, not a bit of problem.

When I went to pick him up, we tried to start it again, to no avail. We checked all the fuses we could, and found nothing. We never even seen any "security" light on the dash flashing, not that I would have thought anything about it. So we towed it home and let it set (being unemployed, with another vehicle, it wasn't high on my priority list).

After about two weeks my other son wanted to borrow the car, but I told him we would have to look at it. I was thinking either a fuel filter, or fuel pump.

I don't know how he knew, but by the time I got home he had found the problem, reset it, and had the car running.

If I have another problem with it, I will let everyone know, otherwise, I will chalk this up to a computer glitch I guess.

I have been having problem with my 2003 Pontiac Grand Am for over 3 years, never occurred to me to get on the internet to check to see if anyone else was having the same problem as I. I had my mechanic to look at veh and he never came back. I called and called. So i decide to look on internet to so I could determined what was wrong with my car. I never knew so many people was having the same problem as I with the car won't start. My mechanic has fix my car 2 times and I guess he said the third time the hell with it. now I am stuck. I will never ever buy another Pontiac. The security system in car is a piece of cramp. Yes GM need to recall all these veh Now this morning I am getting and going to my car to try and start it on my own. I read if I wait 10 minute of so after the security light stop blinking I might can get it crank. Wish me luck, because I am unemployed at this time and don't have much money, so I can't buy a new car.

Several times we have had problems starting my wife's 2003 Pontiac Grand AM GT. You would think a car that averages less than 3,500 miles a year and meticulously maintained would be trouble free. As I have seen reported by over 400 others on this site I am also having difficulty starting this car, either the Security or the Check Engine light will flash but the car won't start.

As others have also mentioned sometimes it will start if you wait 10 or more minutes but sometimes it won't. I had the Ignition changed by a GM Dealer for $508 and now am concerned that this may not be fixed because others have done the same only to have the problem return.

I contacted GM at 866-790-5700, reported this problem and was given a case number. I suggest others do the same this is the only way to get this addressed! Today I was told that if the problem does return, and I call again with my case number, they will do whatever they can to resolve this. It is under investigation and if it is determined to be a safety issue there will be a recall.

To make this happen please report it to safercar.gov as well. It's great to have this site to vent in but we need to have the auto manufactures held accountable for these problems!