Chevrolet 2015 City Express Owner's Manual page 239

10-56 Vehicle Care
Warning
Batteries can hurt you. They can
be dangerous because:
They contain acid that can
burn you.
They contain gas that can
explode or ignite.
They contain enough
electricity to burn you.
Explosive hydrogen gas is
always present in the vicinity
of the battery. Keep all sparks
and flames away from the
battery.
If you do not follow these steps
exactly, some or all of these
things can hurt you.
Caution
Ignoring these steps could result
in costly damage to the vehicle
that would not be covered by the
vehicle warranty. Trying to start
the vehicle by pushing or pulling it
will not work, and it could damage
the vehicle.
1. Discharged Battery
Positive (+) Terminal
2. Discharged Battery Negative
( ) Grounding Point
3. Good Battery Negative ( )
Terminal
4. Good Battery Positive (+)
Terminal
1. Check the other vehicle. It must
have a 12-volt battery with a
negative ground system.
Caution
If the other vehicle does not have
a 12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.