Brake Assist; Braking In Emergencies; Electronic Stability Control (Esc) - Saturn 2009 AURA Owner's Manual

Braking in Emergencies

ABS allows the driver to steer and brake at the same
time. In many emergencies, steering can help more than
even the very best braking.

Brake Assist

This vehicle has a Brake Assist feature designed
to assist the driver in stopping or decreasing vehicle
speed in emergency driving conditions. This feature
uses the stability system hydraulic brake control module
to supplement the power brake system under conditions
where the driver has quickly and forcefully applied the
brake pedal in an attempt to quickly stop or slow down
the vehicle. The stability system hydraulic brake control
module increases brake pressure at each corner of
the vehicle until the ABS activates. Minor brake pedal
pulsations or pedal movement during this time is normal
and the driver should continue to apply the brake pedal
as the driving situation dictates The Brake Assist feature
will automatically disengage when the brake pedal is
released or brake pedal pressure is quickly decreased.
4-6

Electronic Stability Control (ESC)

The vehicle may have an Electronic Stability
Control (ESC) system which combines antilock brake,
traction and stability control systems and helps the driver
maintain directional control of the vehicle in most driving
conditions.
When you first start the vehicle and begin to drive away,
the system performs several diagnostic checks to ensure
there are no problems. The system may be heard or felt
while it is working. This is normal and does not mean
there is a problem with the vehicle. The system should
initialize before the vehicle reaches 20 mph (32 km/h).
If the system fails to turn on or activate, the ESC/TCS
light will be on solid, and the ESC OFF or SERVICE ESC
message will be displayed.
For more information, see Driver Information
Center (DIC) on page 3-43.