Anti-Lock Brake System (ABS) and Stability Control - Overview: Overview
The ABS and stability control systems are comprised of the following subsystems which assist the driver in maintaining control of the vehicle:
- ABS
- EBD
- Traction control
- ESC
- RSC
- Trailer sway control
- Hill start assist
The ABS helps maintain steering control by preventing the wheels from locking up during hard braking. The ABS also includes a brake assist function which provides maximum brake system pressure during a severe braking situation.
The EBD system helps maintain vehicle control by keeping a balanced braking condition between the front and rear wheels.
The traction control system helps prevent loss of traction by reducing drive-wheel spin during acceleration.
The ESC system helps prevent skids or lateral slides by modulating brake fluid pressure to individual brake calipers and reducing engine torque.
The RSC system aids in reducing excessive vehicle roll by modulating brake fluid pressure to individual brake calipers and reducing engine torque.
The trailer sway control system helps maintain vehicle stability while towing a trailer by detecting and aiding in the reduction of conditions causing trailer sway.
The hill start assist system is designed to assist the driver during hill-starts. Using the ABS, the hill start assist system holds the vehicle on an incline for a short time allowing the driver to release the brake pedal and press the accelerator pedal without needing to use the parking brake.
Some noise from the system and pulsations in the brake pedal are normal conditions during most ABS and stability control system activations. Longer than normal brake pedal travel may also be experienced immediately following an ABS or stability control system activation.