Cadillac XT4 2023 Owner's Manual page 318

The vehicle can tow in
D (Drive). Shift the
transmission to a lower gear if
the transmission shifts too
often under heavy loads and/
or hilly conditions.
When towing at higher
altitudes, engine coolant will
boil at a lower temperature
than at lower altitudes. If the
engine is turned off
immediately after towing at
high altitude on steep uphill
grades, the vehicle could show
signs similar to engine
overheating. To avoid this, let
the engine run, preferably on
level ground, with the
transmission in P (Park) for a
few minutes before turning
the engine off. If the overheat
warning comes on, see Engine
Overheating 0 342.
Parking on Hills
Warning
To prevent serious injury or
death, always park your
vehicle and trailer on a level
surface when possible.
When parking your vehicle and
your trailer on a hill:
1. Press the brake pedal, but
do not shift into P (Park)
yet. Turn the wheels into
the curb if facing downhill
or into traffic if facing
uphill.
2. Have someone place
chocks under the trailer
wheels.
3. When the wheel chocks
are in place, gradually
release the brake pedal to
allow the chocks to absorb
the load of the trailer.
4. Reapply the brake pedal.
Then apply the parking
brake and shift into
P (Park).
Driving and Operating
5. Release the brake pedal.
Leaving After Parking on
a Hill
1. Apply and hold the brake
pedal.
Start the engine.
Shift into the
desired gear.
Release the parking
brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer
is clear of the chocks.
4. Stop and have someone
pick up and store the
chocks.
Maintenance When Trailer
Towing
The vehicle needs service
more often when used to tow
trailers. See Maintenance
Schedule 0 425. It is especially
important to check the
automatic transmission fluid,
engine oil, axle lubricant, belts,
317