Security light was on, now car won't start

SOURCE: I have a 1995 Buick LeSabre that won't start.

This is related to GM's VATS security system. It treats sudden loss of power as an attempt to steal the car. To reset the system, do the following: courtesy of ***** Master ASE Technician

• Use your key fob (if equipped) or key to unlock the doors.
• Turn the key to the start position and release it
• Leave key in the ON position for 10 minutes.(the security light should go out at this time
• Turn the key to the OFF position for 10 seconds

SOURCE: Car wont start-security light on-passkey issue?

if the security light is on it could be the ign lock cylinder, it has two small wires attached to it and one may be broken and are the keys the ones that came with the vehicle

SOURCE: my car wont start but all lights and dash come on

Lisa, how long was the key in the one position? For the heck of it, put the car in neutral, and try to start it. It's possible the neutral safety switch is bad, which could cause the problem. It should start in neutral if that's the problem. Let me know if this works, if not, I'll help further.

Johnny Brown

• 5763 Answers
• Posted on May 06, 2010

SOURCE: I have a 1993 buick lesabre. The security light is

there may be a broken wire from the ignition swith going down the steering column,theres two sensors at the begining opening of switch, sometimes they get stuck and dont pop back out, in turn it doesnt touch the chip on the key and cant read it,take a look with a light use a small pic and push lightly on them and see if the y push in and pop out, if they do then replace ignition swith,theres a way to bypass,use an omh meter and measure resistance of key chip, then buy a resistor with the same value,and connenet to wires from switch under the dash,cut wires and put conecting the two going to switch with resistor connecting them together,heres a diagram,

SOURCE: 99 buick lesabre, battery ok, turn key to start, nothing

The security system (VATS/PassKey) is faulty. You can find a great write-up here: http://newrockies.ca , it was the only thing that saved my Park Avenue.