Cadillac LYRIQ 2023 Owner's Manual page 288

286 Vehicle Care
Connection Points and Sequence
1. Discharged Battery Positive (+)
Terminal
2. Good Battery Positive (+) Terminal
3. Good Battery Negative ( ) Terminal
4. Discharged Battery Negative ( )
Grounding Point
The discharged battery positive (+) terminal
and the discharged battery negative ( )
grounding point are on the driver side of
the vehicle.
The good battery negative ( ) terminal and
the good battery positive (+) 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 under a covers. 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 make sure
the vehicles are not touching each other.
Caution
If the vehicles touch each other while
jump starting, a ground connection may
occur that disables your vehicle and/or
damages the electrical systems of one or
both vehicles.
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
transmission, put the vehicle in
N (Neutral) before setting the parking
brakes.
3. Turn off both vehicles. Unplug
unnecessary accessories plugged into the
cigarette lighter or the accessory power
outlet. Turn off the radio and all lamps
that are not needed.
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. Open the hood. See Hood 0 250.