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.

The seat belts found on this vehicle have a feature called Electrical Tension Reducer (ETR) which is a feature built within the seat belt retractor located on the driver and passenger front seat belts that reduces the seat belt tension and improves occupant comfort. When the vehicle ignition is turned ON and the seat belt is buckled, the ETR built within the seat belt retractor provides a more comfortable seat belt by pulling the webbing slightly, or lean forward and then sit back. The belt will retract and rest lightly against the occupant. When the seat belt is unbuckled or the vehicle is turned OFF, the ETR is deactivated providing an increase in seat belt tension to provide quick and full retraction of the seat belt.

The Front Seat Belt System also includes a seat belt switch in both driver and passenger seat buckle pretensioner that controls a reminder lamp and a tone alarm.

    • When the driver or passenger seat belt is buckled, the drivers and passenger door is closed, and the ignition switch is turned ON, the following events will occur:
       - The tone alarm will not operate.
       - The reminder lamp will not operate.
    • When the drivers or passenger seat belt is not buckled, the driver's and passenger door is closed, and the ignition switch is in ON position, the following events will occur:
       - 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 or passenger seat belt is buckled.

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, the seat will need to be anchored. Passengers should not be allowed to sit at locations where the seat belts are being used to secure the child seat.

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 in order 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 ensure the correct top strap angle, the child seat is only to be used at the seating position for which the top strap anchor is installed.

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

Fasten Safety Belt Indicator (ISO Symbol) (Red)

The fasten safety belt indicator may only be ON during RUN. The instrument panel cluster (IPC) illuminates the fasten safety belt indicator under the following conditions:

    • During the bulb check.
    • The inflatable restraint sensing and diagnostic module (SDM) sends the status of the driver's and passenger seat belt switch to the IPC via a GMLAN message. If the seat belt is unfastened, the IPC will illuminate the fasten safety belt indicator for 72 seconds or until the seat belt is fastened. If the seat belt is unfastened within 8 seconds following the bulb check, the IPC sends a class 2 serial message requesting 5 chimes to sound.