GM Service Manual Online
For 1990-2009 cars only

Front Seat Belt System

Important: If the vehicle has been in a collision, refer to Repairs and Inspections Required After a Collision for additional information.

  1. The front seat belt system includes a driver and\or passenger seat belt retractor and buckle.
  2. The driver's seat belt system, includes a seat belt switch in the driver seat buckle which controls a reminder lamp and a tone alarm. When the driver seat belt is buckled, the driver's door is closed, and the ignition switch is turned ON, the following events will occur:
  3. • The tone alarm will not operate.
    • The reminder lamp will not operate.
  4. When the driver's seat belt is not buckled, the driver's door is closed, and the ignition switch is turned ON, the following events will occur:
  5. •  The tone alarm will operate for 4 to 8 seconds and then go OFF.
    • The reminder lamp will operate for 20 seconds, until the driver seat belt is buckled.
    • Then the reminder lamp will flash for an additional 55 seconds before going OFF.
    • To diagnose a failure of the reminder lamp or the tone alarm, refer to Diagnostic System Check - Audible Warnings in Instrument Panel, Gages and Console.

Seat Belt Retractors

The seat belt retractor system automatically retracts the driver's and passenger's seat belts. The left seat belt retracts when the following conditions are met:

    • The car is stopped.
    • The driver's seat belt is unbuckled.
    • The left door is opened.

The passenger's seat belt retracts in the same manner when the right door is opened.

Battery positive voltage is applied to each seat belt retractor actuator at all times through the rear compartment fuse block BATT Fuse. When a door is opened, the respective front door lock actuator closes. This action applies ground to the appropriate seat belt retractor actuator. When a seat belt retractor actuator receives power and ground, the seat belt retractor retracts the seat belt.

Rear Seat Belt System

The rear seat belt system includes the following components:

    • The rear seat belt retractor is located under the rear shelf trim panel and is attached to the rear shelf body panel.
    • The center rear seat belt buckle and the outer seat belt buckle are located in the center of the seat cushion and they are attached to the rear floor pan.

Child Seat Restraint System

Caution: A child in a rear-facing child restraint can be seriously injured if the right-front passengers air bag inflates. This is because the back of a rear-facing child restraint would be very close to the inflating air bag. NEVER use a rear-facing child restraint in this vehicle. If a forward-facing child restraint is suitable for your child, ALWAYS move the front passenger seat as far back as it will go and then install the child restraint. Be sure the child restraint position does not conflict with any additional requirements provided by the manufacturer. For more information, refer to the vehicle owners manual and the instruction that came with the child restraint.

The child seat may only be used in a forward facing seating location. The child seat should be installed and secured according to the manufacturer's directions. If the child seat has a top strap it will need to be anchored.

All vehicles are equipped with a dual-mode type retractor with emergency and automatic locking features. The automatic locking feature is for restraint of a child seat. The child seat can be secured by pulling the seat belt all the way out to lock it. Then, tighten the seat belt around the child seat.

If a child seat is to be used in the second seat position, a special dealer-installed anchor must be used to anchor the child seat top strap. This only applies to the seats designed with the top strap provision and for the vehicles sold in Canada. In order to assure the correct top strap angle, the child seat is only to be used at the seating position for witch the top strap anchor is installed.

The inflatable restraint sensing and diagnostic module (SDM) receives a discrete input from the left front seat belt switch. The left front seat belt switch is closed when the seat belt is unbuckled.