Chevrolet Silverado: Warning Lights, Gauges, and Indicators / Traction Control System (TCS)/Electronic Stability Control Light

If equipped, the Electronic Stability Control (ESC) or TCS indicator/warning
light comes on briefly when the engine is started.
If the light does not come on, have the vehicle serviced by your dealer. If the
system is working normally, the indicator light turns off.
If the light is on and not flashing, the TCS, and potentially the ESC system
have been disabled.
If the indicator/warning light is on and flashing, the TCS and/or the ESC system
is actively working.
See Traction Control/Electronic Stability Control.
Trailer Sway Control Light (Uplevel Cluster)

This light will flash when Trailer Sway Control is active. See Trailer Sway Control
(TSC).
This light comes on briefly while starting the engine. If it does not, have the
vehicle serviced by your dealer. If the system is working normally, the indicator
light then turns off...
This light comes on briefly while starting the engine. If it does not, have the
vehicle serviced by your dealer.
This light comes on when the ESC system is turned off...
Other information:
The vehicle’s rear seat has head restraints in the outboard seating positions
that cannot be adjusted.
The head restraint can be folded forward to allow for better visibility when
the rear seat is unoccupied. To fold the head restraint, press the button on the
side of the head restraint...
Follow these procedures to program up to eight keys to the vehicle.
Programming with Two Recognized Keys
To program a new key:
Insert the original, already programmed key in the ignition and turn the
ignition on.
Turn the ignition off, and remove the key...