Trailer Sway; Control (Tsc); Conversions And Add-Ons; Add-On Electrical - GMC Yukon XL Denali Owner's Manual

9-72 Driving and Operating

Trailer Sway

Control (TSC)

Non-hybrid vehicles with StabiliTrak
have a Trailer Sway Control (TSC)
feature. If the vehicle is towing a
trailer and the system detects that
the trailer is swaying, the vehicle
brakes are applied without the driver
pressing the brake pedal. If the
vehicle is equipped with the
Integrated Trailer Brake Control
(ITBC) system, StabiliTrak may also
apply the trailer brakes. The TCS/
StabiliTrak warning light will flash on
the instrument panel cluster to notify
the driver to reduce speed. If the
trailer continues to sway, StabiliTrak
will reduce engine torque to help
slow the vehicle. See StabiliTrak
System on page 9 35 for more
information.
Adding non dealer accessories can
affect the vehicle performance. See
Accessories and Modifications on
page 10 3 for more information.
Conversions and
Add-Ons

Add-On Electrical

Equipment

Notice: Do not add anything
electrical to the vehicle unless
you check with your dealer first.
Some electrical equipment can
damage the vehicle and the
damage would not be covered by
the vehicle's warranty. Some
add-on electrical equipment can
keep other components from
working as they should.
®
Add-on equipment can drain the
vehicle's 12 volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle on page 3 39 and Adding
Equipment to the Airbag-Equipped
Vehicle on page 3 39.