Jump Starting Procedure - Jeep Grand Cherokee 2020 Owner's Manual

304 IN CASE OF EMERGENCY
3. Remove the protective cover over the
remote positive (+) battery post. Pull
upward on the cover to remove it.
4. If using another vehicle to jump start the
battery, park the vehicle within the jumper
cables reach, apply the parking brake and
make sure the ignition is OFF.
WARNING!
Do not allow vehicles to touch each other as
this could establish a ground connection and
personal injury could result.

Jump Starting Procedure

WARNING!
Failure to follow this jump starting procedure
could result in personal injury or property
damage due to battery explosion.
CAUTION!
Failure to follow these procedures could
result in damage to the charging system of
the booster vehicle or the discharged vehicle.
NOTE:
Make sure at all times that unused ends of
jumper cables are not contacting each other or
either vehicle while making connections.
Connecting The Jumper Cables
1. Connect the positive (+) end of the jumper
cable to the remote positive (+) post of the
discharged vehicle.
2. Connect the opposite end of the positive (+)
jumper cable to the positive (+) post of the
booster battery.
3. Connect the negative end (-) of the jumper
cable to the negative (-) post of the booster
battery.
4. Connect the opposite end of the negative (-)
jumper cable to the remote negative (-) post
of the vehicle with the discharged battery.
WARNING!
Do not connect the jumper cable to the
negative (-) post of the discharged battery.
The resulting electrical spark could cause the
battery to explode and could result in
personal injury. Only use the specific ground
point, do not use any other exposed metal
parts.
5. Start the engine in the vehicle that has the
booster battery, let the engine idle a few
minutes, and then start the engine in the
vehicle with the discharged battery.
CAUTION!
Do not run the booster vehicle engine above
2,000 RPM since it provides no charging
benefit, wastes fuel, and can damage booster
vehicle engine.
6. Once the engine is started, remove the
jumper cables in the reverse sequence.