Brake Assist; Ride Control Systems Traction Control; System (Tcs) - Buick 2010 LaCrosse Owner's Manual

8-34 Driving and Operating

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.
Ride Control Systems
Traction Control

System (TCS)

The vehicle has a traction control
system that limits wheel spin. This is
especially useful in slippery road
conditions. On a front-wheel-drive
vehicle, the system operates if it
senses that one or both of the front
wheels are spinning or beginning to
lose traction. On an All-Wheel-Drive
(AWD) vehicle, the system will
operate if it senses that any of the
wheels are spinning or beginning to
lose traction. When this happens,
the system brakes the spinning
wheel(s) and/or reduces engine
power to limit wheel spin.
The system may be heard or felt
while it is working, but this is
normal.
The TCS/StabiliTrak warning light
flashes to indicate that the traction
control system is active.
This warning light comes on if there
is a problem with the traction control
system.
See Traction Off Light on
page 4 21. When this warning
light is on, the system does not
limit wheel spin. Adjust your
driving accordingly.
TCS automatically comes on
whenever the vehicle is started.
To limit wheel spin, especially in
slippery road conditions, the system
should always be left on. But, TCS
can be turned off if needed.