Towing The Vehicle; Jumper Cable Removal - GMC 2014 Sierra Owner's Manual

To the negative ( ) post on
the auxiliary battery, on the
vehicle with the dead battery.
11. Start the vehicle with the good
battery and run the engine for a
while.
12. Try to start the vehicle that had
the dead battery. If it will not
start after a few tries, it
probably needs service.
If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by the vehicle warranty.
Always connect and remove the
jumper cables in the correct order,
making sure that the cables do
not touch each other or other
metal.
Reverse the sequence exactly when
removing the jumper cables.
Incorrectly towing a disabled
vehicle may cause damage. The
damage would not be covered by
the vehicle warranty. Do not lash
or hook to the chassis
components including the front
and rear subframes, suspension
control arms, and links
towing and recovery of a disabled
vehicle, or when securing the
vehicle to a flatbed car carrier.
Use the proper nylon strap
harnesses around the tires to
secure them to the flatbed car
carrier.
Have the vehicle towed on a flatbed
car carrier or a wheel lift tow truck.
If a wheel lift tow truck is used, the
drive wheels cannot contact the
road while the vehicle is being
towed. A wheel dolly must be used
to lift all drive wheels off the ground.
during