GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 201

200 Driving and Operating
Warning
Getting out of the vehicle on the
downhill side when stopped
across an incline is dangerous.
If the vehicle rolls over, you could
be crushed or killed. Always get
out on the uphill side of the
vehicle and stay well clear of the
rollover path.
Parking on a Hill
Parking on a hill or steep grade is
not advised. See Parking on Hills
in Driving Characteristics and
Towing Tips 0 250 for more detailed
information.
If parking on a hill or steep grade:
1. Press the brake pedal to stop
the vehicle, and then apply the
parking brake.
2. Shift into P (Park), and then
turn the vehicle off.
3. Block the wheels with chocks.
Driving in Mud, Sand, Snow,
or Ice
Use a low gear when driving in
mud the deeper the mud, the
lower the gear. Keep the vehicle
moving to avoid getting stuck.
Traction changes when driving on
sand. On loose sand, such as on
beaches or sand dunes, the tires
tend to sink into the sand. This
affects steering, accelerating, and
braking. Drive at a reduced speed
and avoid sharp turns or abrupt
maneuvers.
Traction is reduced on hard packed
snow and ice and it is easy to lose
control. Reduce vehicle speed when
driving on hard packed snow
and ice.
Warning
Driving on frozen lakes, ponds,
or rivers can be dangerous. Ice
conditions vary greatly and the
vehicle could fall through the ice;
(Continued)
Warning (Continued)
you and your passengers could
drown. Drive your vehicle on safe
surfaces only.
Driving in Water
Warning
Driving through rushing water can
be dangerous. Deep water can
sweep your vehicle downstream
and you and your passengers
could drown. If it is only shallow
water, it can still wash away the
ground from under your tires.
Traction could be lost, and the
vehicle could roll over. Do not
drive through rushing water.