Chevrolet Silverado 2014 Owner's Manual Supplement page 15

How to Rock the Vehicle
if Stuck in Mud or Snow
When a vehicle gets stuck in snow
or mud, it is common practice to shift
back and forth between R (Reverse)
and D (Drive) to free the vehicle.
Turn the steering wheel left and right to
clear the area around the front wheels.
Turn off any traction control system.
See Traction Control/Electronic Stability
Control in the GM Owner's Manual
When rocking the vehicle, wait until the
wheels stop spinning before shifting
from R to D to prevent electric drive
unit wear. The accelerator pedal should
be released whenever the positions
are changed. When the traction
motor is engaged, press lightly on the
accelerator pedal. Slowly spinning the
wheels in the forward and reverse
direction causes a rocking motion that
could free the truck. If that does not
get the truck out after a few tries,
the vehicle may need to be towed.
CAUTION: Always depress the
brake pedal when moving
from D to R.
WARNING: If the truck's tires
spin at a high speed, they can
explode, and you or others
could be injured. The truck
could also overheat or cause
other damage.
Spin the wheels as little as
possible and avoid going above
35 mph (56 km/h).
Driving and Operating 15 15