GMC Terrain 2018 Owner's Manual page 330

Caution (Continued)
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Position the two vehicles so
that they are not touching.
3. Set the parking brake. See
Shifting Into Park 0 188.
Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting.
4. Turn the ignition off. Turn off all
lights and accessories in both
vehicles, except the hazard
warning flashers if needed.
Warning
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
Warning
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded.
Use a flashlight if you need more
light.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.
Vehicle Care
Warning
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running.
5. Connect one end of the red
positive (+) cable to the
positive (+) terminal on the
discharged battery.
6. Connect the other end of the
red positive (+) cable to the
positive (+) terminal of the good
battery.
7. Connect one end of the black
negative ( ) cable to the
negative ( ) terminal of the
good battery.
8. Connect the other end of the
black negative ( ) cable to the
negative ( ) grounding stud for
the discharged battery.
9. Start the engine in the vehicle
with the good battery and run
the engine at idle speed for at
least four minutes.
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