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Reasons for the Trac-off & Anti-Lock Brake Lights Being on in a 1999 Oldsmobile Alero The anti-lock brake system in your 1999 Oldsmobile Alero is part of the enhanced traction system. The "Trac Off" light indicates that the ETS system is disabled. Since the ABS light is also lit, the ETS is most likely disabled because there is an ABS malfunction. ABS DTCs The electronic brake control module disables the ETS when it sets diagnostic trouble codes C1221 through C1228, or C1232 through C1235. These DTCs indicate problems with wheel speed sensors or speed sensor circuits used by the ABS. No provision was made in your Alero to pull a DTC using flash codes, so you'll need a scan tool determine which code or codes are logged. Since it takes 100 drive cycles to clear a code from the EBCM, use a scan tool to clear the codes after repairs are made to the ABS.

Seat belts, also known as safety belts, are a safety feature that secures the passenger in the vehicle seat in case of an accident. Seat belts are part of the occupant restraint system that helps to avoid harmful movement of the passengers, which could lead to injuries and also protects the occupants from being ejected from the vehicle. Many seat belt designs have been developed for several different applications. The most common safety belt is the three point seat belt found in most cars. This belt is attached in three places; two mount near the rear of the seat bottom and one towards the top of the side pillar.A seat belt is a device used in motor vehicles, boats and airplanes designed to reduce the chances of injury and death in the event of a crash. A seat belt usually consists of one or more flexible but sturdy cloth straps that bind a passenger to his seat. The most common type of seat belt in cars are three-point belts which consist of a lap belt around the waist, and a shoulder...