If you have a chip in your key the chip may have gone bad or your ignition is not reading it. the car thinks someone is trying to steal it & stops ignition process. try to get a new key made. you may have to get it from a dealer.
That varies with the problem. Could be immediate, or could take a week.
changed battery engine light stays on
take it to dealership
The check engine light comes on when the ECU detects a problem with the emission system. To determine what the problem is you need to have the ECU scanned with an OBD2 scan tool. The code you retrieve will tell you where to start looking for the problem.
ANWSER
If the check engine light is on, use a code scanner to find out why.
because you did not trun the lights of when you closed the car
If the green lights go out for the 4 wheel drive and the yellow light comes on in an Infinity QX4, there could be a problem with the transfer case. There could also be a problem with the 4 wheel drive not engaging when it should.
It is possible that your alternator might be going out. It also could be a problem with your battery. You should have it checked by a professional or you could be stranded .
The security light might come on while you are driving because it has a motion detector on it and when it senses the cars movement the light comes on.
There could be different reasons the security light is coming on in your Chevy Trailblazer. The fuse could have blown or there could be a wiring short.
When an anti theft system light comes on while driving a 98 Chevy Malibu, the problem is usually caused by the Security Module. The security module is part of the Ignition Lock Module.