I also have a 99 prizm with a blinking air bag light. It started blinking in 2003. Took it to the dealer and they told me it was the SRS module and replaced it for almost $1500 bucks (dealer covered charges). 1 month later, started blinking again. took it back and dealer said it MAY BE the air bag solonoid on the passanger side. This would cost me $900 dollars to replace as that was not covered by warranty. I asked if that was for sure the problem. They responded that it was merely the next step in the flowchart. The SRS module was first, then solonoids, then airbags etc. This could potentially go on infinitum. Hence, You can take a chance and ignore it like I have, or go down the expensive rabbit hole chasing a cure for what is probably a Chevy/Toyota fantom problem. I also have a 99 Prizm, and mine blinks, too! I have no idea why. It stopped a few months ago and has stayed off, but I'm sure it will come back eventually. Good luck! You are dealing with a primary safety device in your vehicle. A device that can save your life. The SRS is not a system that can be worked on by a novice. Serious injury can occur if you do something wrong. The flashing light is an indication that something is wrong with the system. Take the car to you local GM dealer and have it repaired by a pro ASAP. Your life or a family members life may depend on it.
The alarm
Maybe the hood isn't shut tight?
Which light? Is it the dome light? the headlights? the little annoying blinking one next to the radio? I might be able to help.
Blinking
A blinking check engine light means an engine cylinder misfire has been detectedNot only a misfire, but a condition that could cause a catastrophic failure of the catalytic converter. The injector on the effected cylinder(s) will be shut off by the PCM
If it's just one way and it wont shut off then its probably just to turn signal switch.
The cruise sensors have detected a malfuntion and you should probley take it to a Chevrolet Certified Repair Facility.
that is normal I have three fords in my driveway including a 99 Windstar and they all do it. ======================================================== Just adding to the answer ( once the doors are locked )
By any chance are you referring to the word "THEFT" that blinks in your gauge cluster when the Explorer is shut off and locked up ? That indicates that your alarm system is armed .
With the ignition off set the park brake then turn the truck on and the light will be off
Open up the powa box with your wrench that's inside your spy phone and put the paperclip in. the paper clip is underneath the couch and your tools on your spy phone is the blinking red light.
Answering "1999 Pontiac Bonneville fuel shut off switch?"