Chevrolet Sonic Owner's Manual: Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working
If the warning light comes on, there is a brake problem. Have the brake system inspected right away.
Warning
The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service.
This light should come on briefly when the ignition is turned to ON. If it does not come on then, have it fixed so it will be ready to warn if there is a problem.
When the ignition is on, the brake system warning light will also come on when the parking brake is set. The light will stay on if the parking brake does not fully release. If it stays on after the parking brake is fully released, it means there is a brake problem.
If the light comes on while driving, carefully pull off the road and stop. The pedal may be harder to push or may go closer to the floor. It may take longer to stop. If the light is still on, have the vehicle towed for service. See Towing the Vehicle.
Service Vehicle Soon Light
For vehicles with this light, it comes on if a condition exists that may require
the vehicle to be taken in for service.
If the light comes on, take the vehicle to your dealer for service as soon ...
Antilock Brake System (ABS) Warning Light
This light comes on briefly when the engine is started.
If the light stays on, turn the ignition to LOCK/OFF or if the light comes on,
stop as soon as possible and turn the ignition off. Then sta ...
Other materials:
Pretensioner Handling and Scrapping
Scrapping Procedure
During the course of a vehicles useful life, certain situations may arise
which will necessitate the disposal of a live (undeployed) pretensioner. The
following information covers the proper procedures for the disposing of a live
(undeployed) pretensioner. Deplo ...
Steering Angle Sensor Centering
The steering angle sensor does not require centering often. Centering of the
steering angle sensor might be required after certain service procedures are performed.
Some of these procedures are as follows:
Wheel alignment
Steering gear replacement
Steering column replacement
Collision ...
Drive Range, First Gear (Gen 1)
As the vehicle speed increases, the transmission control module (TCM) receives
input signals from the automatic transmission input and output speed sensors, throttle
position sensor and other vehicle sensors to determine the precise moment to deenergize
or ?urn OFF?the shift solenoid, and to c ...
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