Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-15555985) - 2022 - CRC - 8/3/21
234
Driving and Operating
HSA is available when the vehicle is facing
uphill in a forward gear, or when facing
downhill in R (Reverse). The vehicle must
come to a complete stop on a grade for HSA
to activate.
Ride Control Systems
Traction Control/Electronic
Stability Control
System Operation
The vehicle has a Traction Control System
(TCS) and StabiliTrak/Electronic Stability
Control (ESC). These systems help limit
wheel spin and assist the driver in
maintaining control, especially on slippery
road conditions.
TCS activates if it senses that any of the
drive wheels are spinning or beginning to
lose traction. When this happens, TCS
applies the brakes to the spinning wheels
and reduces engine power to limit
wheel spin.
StabiliTrak/ESC activates when the vehicle
senses a difference between the intended
path and the direction the vehicle is actually
traveling. StabiliTrak/ESC selectively applies
braking pressure to any one of the vehicle
wheel brakes to assist the driver in keeping
the vehicle on the intended path. Trailer
Sway Control (TSC) is also on automatically
when the vehicle is started. See
.
If cruise control is being used and traction
control or StabiliTrak/ESC begins to limit
wheel spin, cruise control will disengage.
Cruise control may be turned back on when
road conditions allow.
Both systems come on automatically when
the vehicle is started and begins to move.
The systems may be heard or felt while
they are operating or while performing
diagnostic checks. This is normal and does
not mean there is a problem with the
vehicle.
It is recommended to leave both systems on
for normal driving conditions, but it may be
necessary to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow. See
and
“
Turning the
Systems Off and On
”
later in this section.
When the transfer case (if equipped) is in
Four-Wheel Drive Low, the TCS and
StabiliTrak/ESC are automatically disabled,
g
comes on, and the appropriate message will
appear on the Driver Information
Center (DIC).
The indicator light for both systems is in the
instrument cluster. This light will:
.
Flash when TCS is limiting wheel spin.
.
Flash when StabiliTrak/ESC is activated.
.
Turn on and stay on when either system
is not working.
See
Traction Control System (TCS)/StabiliTrak
If either system fails to turn on or to
activate, a message displays in the DIC, and
d
comes on and stays on to indicate that
the system is inactive and is not assisting
the driver in maintaining control. Without
the assistance of properly functioning
StabiliTrak/ESC the possibility of rollover is
increased. Adjust driving accordingly.