Stability control activates when the computer senses a
difference between the intended path and the direction
the vehicle is actually traveling. Stability control
automatically adjusts the front road wheel steering
angle, modifies the suspension stiffness, and selectively
applies braking pressure at any one of the vehicle’s
brakes to help maintain directional control of the vehicle.
When the system activates, a STABILITY SYS
ACTIVE message displays on the Driver Information
Center (DIC). See DIC Warnings and Messages
on page 3-79. It is normal to hear a noise or feel
vibration in the brake pedal when the system is working.
Continue to steer the vehicle in the intended direction.
If cruise control is engaged when Enhanced StabiliTrak
activates, the cruise control will automatically disengage.
Cruise Control may be re-engaged when road conditions
allow. See Cruise Control on page 3-16, or Adaptive
Cruise Control on page 3-20 for more information.
Enhanced StabiliTrak comes on automatically in the
Stability Touring Mode, when the vehicle is started.
The Stability Touring Mode is recommended for normal
driving. Enhanced StabiliTrak also has Stability
Competitive Mode that is turned on by pressing the
Traction Control (TC) button twice quickly. This mode is
designed to be used by the performance conscious
driver who desires less stability control intervention.
See Competitive Driving Mode on page 4-11. When the
Stability Control Competitive Mode has been activated,
traction control operates in competitive mode and
cannot be turned off. The STABILITY COMPETITIVE
MODE message will be displayed on the DIC.
See DIC Warnings and Messages on page 3-79.
When operating the vehicle in the Stability Competitive
Mode, the system provides less stability control
intervention. Driving should be adjusted accordingly.
When the Stability Competitive Mode has been selected,
the Active Steering and Magnetic Ride Control Touring
Mode is not available. These systems are automatically
changed to the Performance Mode, providing more
response to road conditions and quicker steering
response. For more information, see “Active Steering
and Magnetic Ride Control Mode” in the Index of
the vehicle’s Navigation Manual.
To assist with directional control of the vehicle, always
leave the system on. Stability control can be turned
off however, by using the TC button. See Traction
Control System (TCS) on page 4-10. The STABILITY
SYS OFF message will be displayed on the DIC.
See DIC Warnings and Messages on page 3-79.
4-7
Summary of Contents for 2009 STS
Page 13: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 1 9...
Page 72: ...NOTES 1 68...
Page 154: ...NOTES 2 82...
Page 157: ...NOTES 3 3...
Page 158: ...Instrument Panel Overview 3 4...
Page 340: ...4 6L V8 Engine 5 14...
Page 342: ...4 4L V8 STS V Engine 5 16...
Page 450: ...Underhood Fuse Block 5 124...
Page 462: ...NOTES 5 136...
Page 478: ...Engine Drive Belt Routing 3 6L V6 Engine 4 4L V8 Engine 6 16...
Page 479: ...4 6L V8 Engine 6 17...