Trailer Sway Control (Tsc) - Cadillac XT4 2023 Owner's Manual

252 Driving and Operating

Trailer Sway Control (TSC)

Vehicles with StabiliTrak/Electronic Stability
Control (ESC) have a Trailer Sway Control
(TSC) feature. Trailer sway is unintended
side-to-side motion of a trailer while towing.
If the vehicle is towing a trailer and the TSC
detects that sway is increasing, the vehicle
brakes are selectively applied at each wheel,
to help reduce excessive trailer sway.
If equipped with the Integrated Trailer Brake
Control (ITBC) system, and the trailer has an
electric brake system, StabiliTrak/ESC may
also apply the trailer brakes.
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak/ESC warning light
will flash on the instrument cluster. Reduce
vehicle speed by gradually removing your
foot from the accelerator. If trailer sway
continues, StabiliTrak/ESC can reduce engine
torque to help slow the vehicle. TSC will not
function if StabiliTrak/ESC is turned off. See
Traction Control/Electronic Stability Control
0 198.
Warning
Trailer sway can result in a crash and in
serious injury or death, even if the
vehicle is equipped with TSC.
If the trailer begins to sway, reduce
vehicle speed by gradually removing your
foot from the accelerator. Then pull over
to check the trailer and vehicle to help
correct possible causes, including an
improperly or overloaded trailer,
unsecured load, improper trailer hitch
configuration, or improperly inflated or
incorrect vehicle or trailer tyres. See
Towing Equipment 0 249 for trailer
ratings and hitch setup recommendations.
Trailer Tyres
Special Trailer (ST) tyres differ from vehicle
tyres. Trailer tyres are designed with stiff
sidewalls to help prevent sway and to
support heavy loads. These features can
make it difficult to determine if the trailer
tyre pressures are low only based on a
visual inspection.
Always check all trailer tyre pressures before
each trip when the tyres are cool. Low
trailer tyre pressure is a leading cause of
trailer tyre blowouts.
Trailer tyres deteriorate over time. The
trailer tyre sidewall will show the week and
year the tyre was manufactured. Many
trailer tyre manufacturers recommend
replacing tyres more than six years old.
Overloading is another leading cause of
trailer tyre blowouts. Never load your trailer
with more weight than the tyres are
designed to support. The load rating is
located on the trailer tyre sidewall.
Always know the maximum speed rating for
the trailer tyres before driving. This may be
significantly lower than the vehicle tyre
speed rating. The speed rating may be on
the trailer tyre sidewall. If the speed rating
is not shown, the default trailer tyre speed
rating is 105 km/h (65 mph).