2021 CHRYSLER 300 jump cable

186 IN CASE OF EMERGENCY
7. Mount the spare tire.

Mounting Spare Tire

NOTE:
For vehicles so equipped, do not attempt to install
a
center cap or wheel cover on the compact spare
Ú page 236.
8. I nstall the lug nuts with the cone shaped end
of
the lug nut toward the wheel. Lightly tighten
the lug nuts. 9. Low
er the vehicle to the ground by turning the
j
ack handle counterclockwise.
10. Finish tightening the wheel bolts. Push down on
the wrench while at the end of the handle
for increased leverage. Tighten the wheel bolts
in a star pattern until each wheel bolt has been
tightened twice. If in doubt about the correct
tightness, have them checked with a torque
wrench by an authorized dealer or at a service
station
Ú page 245.
11. S tow the jack, tools and flat tire. Make sure the
b
ase of the jack faces the front of the vehicle
before tightening down the fastener.
JUMP STARTING
If your vehicle has a discharged battery, it can be
jump started using a set of jumper cables and a
battery in another vehicle, or by using a portable
battery booster pack. Jump starting can be
dangerous if done improperly, so please follow the
procedures in this section carefully.
NOTE:
When using a portable battery booster pack, follow
t h
e manufacturer's operating instructions and
precautions.
CAUTION!
Be sure to mount the spare tire with the valve
stem facing outward. The vehicle could be
damaged if the spare tire is mounted incorrectly.
WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the wheel nuts fully until the
vehicle has been lowered. Failure to follow this
warning may result in serious injury.
WARNING!
A loose tire or jack thrown forward in a collision
or hard stop could endanger the occupants of
the vehicle. Always stow the jack parts and the
spare tire in the places provided. Have the
deflated (flat) tire repaired or replaced
immediately.
WARNING!
Do not attempt jump starting if the battery is
frozen. It could rupture or explode and cause
personal injury.
CAUTION!
Do not use a portable battery booster pack or
any other booster source with a system voltage
greater than 12 Volts or damage to the battery,
starter motor, alternator or electrical system may
occur.

IN CASE OF EMERGENCY 187
PREPARATIONS FOR JUMP START
The battery is stored under an access cover in the
trunk. Remote battery posts are located on the
right side of the engine compartment for jump
starting.

Jump Starting Locations

NOTE:
The remote battery posts are viewed by standing
on
the right side of the vehicle looking over the
fender. The positive battery post may be covered
with a protective cap. Lift up on the cap to gain
access to the positive battery post. Do not jump off
fuses. Only jump directly off positive post which
has a positive (+) symbol on or around the post.
Jump Starting Posts

See below steps to prepare for jump starting:

1. Apply the parking brake, shift the automatic t
ransmission into PARK and cycle the ignition
to OFF.

2. T urn off the heater, radio, and all electrical
a
ccessories.
3. If using another vehicle to jump start the b
attery, park the vehicle within the jumper
cables reach, set the parking brake, and make
sure the ignition is OFF.
Remote Positive (+) Post
Remote Negative (-) Post
Remote Positive (+) Post
Remote Negative (-) Post
WARNING!
Do not allow vehicles to touch each other as this
could establish a ground connection and
personal injury could result.
WARNING!
Take care to avoid the radiator cooling fan
whenever the hood is raised. It can start
anytime the ignition switch is ON. You can be
injured by moving fan blades.
Remove any metal jewelry such as rings,
watch bands and bracelets that could make
an inadvertent electrical contact. You could be
seriously injured.
Batteries contain sulfuric acid that can burn
your skin or eyes and generate hydrogen gas
which is flammable and explosive. Keep open
flames or sparks away from the battery.7

188 IN CASE OF EMERGENCY
JUMP STARTING PROCEDURE
NOTE:
Make sure at all times that unused ends of jumper
c a
bles are not contacting each other or either
vehicle while making connections.
Connecting The Jumper Cables

1. C onnect the positive
(
+) end of the jumper
cable to the remote positive (+)
post of the
discharged vehicle.

2. C onnect the opposite end of the positive (
+)
jumper cable to the positive (+) post of the
booster battery.
3. C onnect the negative (
-) end of the jumper
cable to the negative (-) post of the booster
battery. 4. C
onnect the opposite end of the negative (
-)
jumper cable to the remote negative (-) post
(exposed metallic/unpainted post of the
discharge vehicle) located directly behind the
under-hood fuse box.
5. S tart the engine in the vehicle that has the
b
ooster battery, let the engine idle a few
minutes, and then start the engine in the
vehicle with the discharged battery.
6. O nce the engine is started, follow the discon-
n
ection procedure below. Disconnecting The Jumper Cables

1. D
isconnect the negative
(
-) end of the jumper
cable from the remote negative (-)
post of the
discharged vehicle.

2. D isconnect the opposite end of the negative (
-)
jumper cable from the negative (-) post of the
booster battery.
3. D isconnect the positive (
+) end of the jumper
cable from the positive (+) post of the booster
battery.
4. D isconnect the opposite end of the positive (
+)
jumper cable from the remote positive (+) post
of the discharged vehicle.
5. R einstall the protective cover over the remote
p
ositive (+) post of the discharged vehicle.
If frequent jump starting is required to start your
ve
hicle you should have the battery and charging
system tested at an authorized dealer.
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.
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.
CAUTION!
Do not run the booster vehicle engine above
2,000 rpm since it provides no charging benefit,
w a
stes fuel, and can damage booster vehicle
engine.
CAUTION!
Accessories plugged into the vehicle power
outlets draw power from the vehicle’s battery,
even when not in use (i.e., cellular devices, etc.).
Eventually, if plugged in long enough without
engine operation, the vehicle’s battery will
discharge sufficiently to degrade battery life
and/or prevent the engine from starting.