Electronic Stability Control (Esc) - Chevrolet 2009 HHR Owner's Manual

Electronic Stability Control (ESC)

The vehicle has an Electronic Stability Control (ESC)
system which combines antilock brake, and traction and
stability control systems that help the driver maintain
directional control of the vehicle in most driving
conditions.
When the vehicle is started and begins to move, 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 comes on, and the ESC OFF and/or SERVICE ESC
message displays.
For more information, see Driver Information Center
(DIC) on page 3-48 and Electronic Stability Control
(ESC)/Traction Control System (TCS) Indicator/Warning
Light on page 3-35.
ESC activates when the computer senses a discrepancy
between the intended path and the direction the
vehicle is actually traveling. ESC selectively applies
braking pressure at any one of the vehicle's brakes to
help steer the vehicle in the intended direction.
When the system activates, an ESC ACTIVE message
displays on the Driver Information Center. See DIC
Warnings and Messages on page 3-50. This light also
flashes on the instrument panel cluster when the
ESC system is on and activated. Noise or vibration may
be felt in the brake pedal. This is normal. Continue to
steer the vehicle in the desired direction.
This light flashes on the
instrument panel cluster
when the ESC system is
on and activated.
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