Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSSIR - OPERATING VEHICLE WITH WARNING LIGHT ON
1990 Chevrolet Lumina APV V6-191 3.1L
SIR - Operating Vehicle with Warning Light On
1990 Chevrolet Lumina APV V6-191 3.1LSECTION SIR - Operating Vehicle with Warning Light On
File In Section: 8 - Chassis/Body Electrical
Bulletin No.: 83-81-34
Date: March, 1999
INFORMATION
Subject:
Operating Vehicle with Supplemental Inflatable Restraint (SIR) Warning Light Illuminated
Models:
1999 and Prior Passenger Cars and Light Duty Trucks with SDM Controlled Air Bag System
The AIR BAG warning light is the key to driver notification of Supplemental Inflatable Restraint (SIR) system malfunctions. When the warning light remains illuminated or continues to flash, one or more of the following conditions may occur if vehicle operation is continued.
^ Non-deployment of the air bags in the event of a crash.
^ Deployment of the air bags without a crash.
^ Deployment of the air bags in crashes less severe than intended.
If an AIR BAG warning light is illuminated or flashing, you should advise the customer of these possibilities and that the vehicle should be serviced right away.
Bulletin No.: 83-81-34
Date: March, 1999
INFORMATION
Subject:
Operating Vehicle with Supplemental Inflatable Restraint (SIR) Warning Light Illuminated
Models:
1999 and Prior Passenger Cars and Light Duty Trucks with SDM Controlled Air Bag System
The AIR BAG warning light is the key to driver notification of Supplemental Inflatable Restraint (SIR) system malfunctions. When the warning light remains illuminated or continues to flash, one or more of the following conditions may occur if vehicle operation is continued.
^ Non-deployment of the air bags in the event of a crash.
^ Deployment of the air bags without a crash.
^ Deployment of the air bags in crashes less severe than intended.
If an AIR BAG warning light is illuminated or flashing, you should advise the customer of these possibilities and that the vehicle should be serviced right away.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.