When I try to start car, it won't start and security light blinks. I'v e had to ignition switches put on before and I had a new key made. Car still won,t start.

I don't believe there is a problem either.
Under normal conditions the security light should come on then go off if the correct key is being used.
The problem could be the key switch or the neutral safety switch if it is an automatic trans. There are other possible causes.

remove your radio, there will be 2 bolts to undo, switch will slide into dash, unplug harness turn key to remove cable, if ignition wont turn you may have to take ignition apart to remove cable. reinstall in reverse procedure. will need to relearn new key to be able to start. try to start, leave key in run position, theft/security light will be blinking. leave on for 15 min or light stops blinking, turn off turn back to run without trying to start. leave on for another 15 min. turn off then start

Is the security light on or blinking?If not then do you have power to the starter.You can check this with a test light.You should have power when you turn the key to start.The test light should light up.Should be the small wire.I believe it is purple in color.If the security light is on then you will have to get the codes to see what is causing the no start.Hope this helps.Good luck.

put key in ignition and turn all the way like your'e going to start it but don't start it. the security light is going to be flashing. leave it for ten minutes like that until the security light turns solid(not blinking). Turn the key to off and then start it. The tumblers in the ignition lock cylinder are no good any more and the ignition switch needs to be replaced and reprogrammed.

need to reprogram the security system. turn the key to start position then to run . let the key stay on until the light stops flashing. repeat these steps 3 times then the car should start if there is not a problem with the pass-lock sensor in the ignition switch or the BCM( body control module).

If the security light is blinking, then the security system is DEFINATELY the reason why your car won't start. The actual cause of the problem is MOST LIKELY a defective ignition switch that is not sending the information from your key to the computer.

Try this:

FIRST try a different key if you have more than one for the vehicle. I have had cars towed into my shop simply because someone was trying to use a cheap duplicate key that was cut at the hardware store. These keys are fine for the doors and trunk. They are great to have around in case you lock your keys in your car. However, they do not have the electronics built into them to allow for engine starting.

If you are using the correct key and a second key also does not work. then...
1. set your parking brake (this will disable your daytime running lamps and conserve battery power.)
2. Connect a battery charger to the vehicle battery if you have one, or see if someone can connect to your battery with jumper cables.
3. Turn the ignition to the START position for about one second. Then release the key to the RUN position. DO NOT turn the ignition OFF.
4. Wait about 10 minutes until the security light quits flashing. Turn the key (without turning it off) to the START position again. The engine should start. If it does not, then you will have to get your car towed in for service.

HINT: you may want to try this a couple times to make sure you are doing it correctly before towing.

If it does start, it is recommended that you have your security system checked for fault codes. I have seen this many times, and it only gets worse and does it more often until this method no longer works to get it started.

Hello: TRY THIS Attempt to start the car leave the key on for 10 minutes or until the security light goes out, at this time turn key off for 10 seconds, turn switch on for ten more minutes or when security light goes out, turn key off for 10 seconds. Turn key ON for ten minutes or when security light goes out, turn key off wait 10 seconds, then start car....

the ignition key cylinder has failed theft loc the car have to get a new one from the code to ur vin number

The ignition switch and ignition lock cylinder need replaced

TRY REPROGRAM KEY .PUT KEY IN IGNITION SWITCH TURN IGNITION SWITCH ON POSITION 20 SECONDS DONT START ENGINE WAIT 20 SECONDS TURN OFF SWITCH THEN TURN SWITCH BACK ON 20 SECONDS WATCH THE THEFT SECURITY LIGHT BLINKING.WHEN THEFT STOP BLINKING VECHICLE WILL CRANK.IF LIGHT STILL BLINKING.TRY FEW MORE TIMES KEY IN SWITCH ON POSITION FOR 20 SECONDS.MAKE SURE YOU HAVE THE CORRECT CAR KEYS IN SWITCH IF NOT WRONG SET OF CAR KEYS WILL SET OFF THEFT SECURITY SYSTEM.IF KEY RESETTING TRICK DONT WORK.CHECK BATTERY POWER MAKE SURE YOUR BATTERY HAS 12.5 VOLTS AND CHECK SECURITY THEFT FUSE.IF ALL LOOKS GOOD YOUR SECURITY HAS TO BE CHECKED OUT AT THE DEALERSHIP.