GMC HUMMER EV 2022 Manual page 124

Caution (Continued)
charger must be used, with the
appropriate setting selected. Follow the
trickle charger manufacturer instructions.
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.
The battery is under a cover in the
underhood compartment.
To access the battery under the hood, the
left cover needs to be removed.
Before you connect the cables, here are
some basic things you should know.
Positive (+) will go to the positive (+)
terminal. Negative (−) will go to the
negative (−) terminal on the battery
providing the jump start to the negative
grounding point for the discharged battery.
1. Good Battery Positive (+) Terminal
2. Good Battery Negative (−) Terminal
3. Discharged Battery Negative (−)
Grounding Point
4. Discharged Battery Positive (+)
Terminal
The good battery positive (+) terminal and
the good battery negative (–) terminal are
on the battery of the vehicle providing the
jump start.
The discharged battery positive (+) terminal
and the discharged battery negative (–)
grounding point are on the passenger side
of the vehicle.
Vehicle Care
The discharged battery positive (+) terminal
is under a cover. Remove the cover to
expose the 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.
2. Get the vehicles close enough so the
jumper cables can reach, but be sure the
vehicles are not touching each other.
If they are, it could cause a ground
connection you do not want. You would
not be able to start the vehicle, and the
bad grounding could damage the
electrical systems.
To avoid the possibility of the vehicles
rolling, set the parking brake firmly on
both vehicles involved in the jump start
procedure. Put the vehicles into P (Park).
If the other vehicle has a manual
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