it is the key if you go get the replcement key car will start
1992 nissan maxima security light flashes when open door and car is not starting cranks well, cleaned battery terminals.
check to see if your security light is on i had the same problem (they all do ) put your key in the "on " postition and leave it for 10 minutes until the security light flashes off and then start your engine.
turn on the car but (ready to start) then one press on remote control open then close
I have a 2002 and it is my security system. It shuts off when I start it.
Have you tried unlocking the doors with the remote? I don't know if it will work on GM cars, but it works on at least some Fords.
I forgot to tell you after you connect the battery with the key in start position try to start the car after you reconnect the battery
how do i bypass the security code on my 1995 buick lasabre because my key is bad and i dont want to pay 185.00 for a key
That light flashes when there is a malfunction in the sentry key system. You could have the wrong or a failed key.
turn the ignition switch on (all the lights in dash light up) but do not crank engine. leave on for half hour untill security light goes off. turn off ignition, wait 30 seconds then start engine.
if the light goes off it's probably the starter...
That flashing light probably drained your battery, try giving it a jump and trying again. I had this same problem. Fixed it for me.