coolant JEEP GRAND CHEROKEE TRAILHAWK 2020 Owners Manual

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$LU %ag WaUQLQg /LgKt Úpage 88
Brake Warning Light Úpage 88
Battery Charge Warning Light Úpage 89
Door Open Warning Light
Úpage 89
Electric Power Steering (EPSyf)DXOW Warning Light
Ú page 89
Electronic Throttle Control (ETCyf Warning Light
Ú page 89
Engine Coolant Temperature Warning Light
Ú page 90
Hood Open Warning Light Úpage 90
Liftgate Open Warning Light Úpage 90
Oil Pressure Warning Light Úpage 90
Red Warning Lights

SERVICING AND MAINTENANCE
SC\b\fED SERVICING
Your vehicle is equipped with an automatic oil
change indicator system. The oil change
indicator system will remind you that it is time to
take your vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil
change indicator message will illuminate. This
means that service is required for your vehicle.
Operating conditions such as frequent
short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will
influence when the “Oil Change Required”
message is displayed. Severe operating
conditions can cause the change oil message to
illuminate as early as 3,500 miles (5,600 kmyf since last reset. Have your vehicle serviced as
soon as possible, within the next 500 miles
(805 kmyf. An authorized dealer will reset the oil change
indicator message after completing the
scheduled oil change.
NOTE:
Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 kmyf
12 months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for
fleet customers.
Severe Duty All Models
Vehicles that are operated in a dusty and
off-road environment, or predominately at idle
or very low engine RPM are known as Severe
Duty vehicles. It is recommended that you
change engine oil at 4,000 miles (6,500 kmyfRU
350 hours of engine run time.
Once A Month Or Before A Long Trip:Check engine oil level
Check windshield washer fluid level
Check the tire pressures and look for unusual
wear or damage
Check the fluid levels of the coolant reservoir,
brake master cylinder and fill as needed
Check function of all interior and exterior
lights
8

21_WK_OM_EN_USC_t.book Page 329

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You or others can be badly burned by hot
engine coolant (antifreezeyfRUVWHDPIURP
your radiator. If you see or hear steam
coming from under the hood, do not open
the hood until the radiator has had time to
cool. Never open a cooling system pressure
cap when the radiator or coolant bottle is
hot.
Keep hands, tools, clothing, and jewelry
away from the radiator cooling fan when
the hood is raised. The fan starts automati-
cally and may start at any time, whether the
engine is running or not.
When working near the radiator cooling fan,
disconnect the fan motor lead or turn the
ignition to the OFF mode. The fan is
temperature controlled and can start at any
time the ignition is in the ON mode.

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Do not open hot engine cooling system.
Never add engine coolant (antifreezeyfZKHQ
the engine is overheated. Do not loosen or
remove the cap to cool an overheated
engine. Heat causes pressure to build up in
the cooling system. To prevent scalding or
injury, do not remove the pressure cap
while the system is hot or under pressure.
Do not use a pressure cap other than the
one specified for your vehicle. Personal
injury or engine damage may result.