Fuses - Jeep WRANGLER 2023 Manual

70 SERVICING AND MAINTENANCE
If frequent engine coolant additions are

required, the cooling system should be pressure
tested for leaks.
Maintain coolant concentration at a minimum of

50% OAT coolant (conforming to MS.90032)
and deionized, or distilled water.
Use only high purity water such as deionized, or

distilled water when mixing the water/coolant
solution for the engine, battery or high voltage
electronics cooling systems. The use of lower
quality water will reduce the amount of corro-
sion protection in the cooling system.
Make sure that the coolant expansion bottle

overflow hoses are not kinked or obstructed.
Keep the front of the radiator clean. If your

vehicle is equipped with air conditioning, keep
the front of the condenser clean.
Do not change the thermostat for Summer or

Winter operation. If replacement is ever neces-
sary, install ONLY the correct type thermostat.
Other designs may result in unsatisfactory
factory engine cooling performance, poor gas
mileage, and increased emissions.
The coolant freeze point in the battery and

power electronics loop should be checked by an
authorized dealer as a special tool is required to
remove the cap from those expansion bottles.
Electric/Battery coolant system must be

serviced by an authorized dealer. If the coolant
level is below what is specified on the reservoir,
contact an authorized dealer for service. These
systems require the use of high purity water
such as deionized, or distilled water when
mixing the water and coolant solution. The use
of lower quality water will reduce the amount of
corrosion protection in the cooling systems.

FUSES

General Information
The fuses protect electrical systems against
excessive current.
When a device does not work, you must check the
fuse element inside the blade fuse for a break/
melt.
Also, please be aware using power outlets for
extended periods of time with the engine off may
result in vehicle battery discharge.
WARNING!
When replacing a blown fuse, always use an

appropriate replacement fuse with the same
amp rating as the original fuse. Never replace
a fuse with another fuse of higher amp rating.
The use of a fuse with a rating other than indi-
cated may result in a dangerous electrical
system overload. If a properly rated fuse
continues to blow, it indicates a problem in the
circuit that must be corrected. Never replace a
blown fuse with metal wires or any other mate-
rial. Failure to use proper fuses may result in
serious personal injury, fire and/or property
damage.
Before replacing a fuse, make sure that the

ignition is off and that all the other services
are switched off and/or disengaged.
(Continued)