Traction Control System (Tcs)/ Stabilitrak Light; Engine Coolant Temperature Warning; Light; Driver Mode Control Light - GMC Sierra Denali 1500 2023 Owner's Manual

126 Instruments and Controls
Traction Control System (TCS)/
StabiliTrak Light
This light comes on briefly when the vehicle
is turned on to show that the light is
working. If it does not come on then, have
it fixed so it will be ready to warn you if
there is a problem.
If the light is on and not flashing, the TCS
and potentially the StabiliTrak/ESC system
are not fully operational and may not assist
in maintaining control. Adjust driving
accordingly. If the condition persists, see
your dealer as soon as possible. A Driver
Information Center (DIC) message may
display.
The light flashes when the TCS and/or the
StabiliTrak/ESC system is actively working.
See Traction Control/Electronic Stability
Control 0 240.
The light may also flash when ABS is active.
See Antilock Brake System (ABS) 0 237.
Trailer Sway Control Light (Uplevel
Cluster)
This light will flash when Trailer Sway
Control is active. See Trailer Sway Control
(TSC) 0 319.
Engine Coolant Temperature
Warning Light
This light comes on briefly while starting
the vehicle.
If it does not, have the vehicle serviced by
your dealer. If the system is working
normally the indicator light goes off.
Caution
The engine coolant temperature warning
light indicates that the vehicle has
overheated. Driving with this light on can
damage the engine and it may not be
covered by the vehicle warranty. See
Engine Overheating 0 349.
The engine coolant temperature warning
light comes on when the engine has
overheated.
If this happens, pull over and turn off the
engine as soon as possible. See Engine
Overheating 0 349.

Driver Mode Control Light

This light comes on when Normal Mode is
selected.