engine coolant JEEP WRANGLER 4XE 2021 Owners Manual

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$LU%DJ:DUQLQJ/LJKWÚpage 135
Brake Warning Light Úpage 135
Battery Charge Warning Light Úpage 136
Door Open Warning Light
Úpage 136
Electric Power Steering (EPSyf)DXOW:DUQLQJ/LJKt Úpage 136
Electronic Throttle Control (ETCyf:DUQLQJ/LJKt Úpage 136
Engine Coolant Temperature Warning Light Úpage 136
Hood Open Warning Light Úpage 137
Oil Pressure Warning Light Úpage 137
Oil Temperature Warning Light Úpage 137
Seat Belt Reminder Warning Light Úpage 136
Red Warning Lights
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21_JL_OM_EN_USC_t.book Page 11

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You or others can be badly burned by hot
engine coolant (antifreezeyfRUVWHDPIURP\RXU
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 radi-
ator 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 automatically 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 igni -
tion to the OFF mode. The fan is temperature
controlled and can start at any time the igni -
tion is in the ON mode.
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21_JL_OM_EN_USC_t.book Page 401

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Do not open hot engine cooling system. Never
add engine coolant (antifreezeyfZKHQWKH
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.
8

21_JL_OM_EN_USC_t.book Page 403

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Do not open hot engine cooling system. Never
add engine coolant (antifreezeyfZKHQWKH
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.

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Mixing of engine coolant (antifreezeyfRWKHUWKDQVSHFLILHG2UJDQLF$GGLWLYH7HFKQRORJ\2$7\f engine coolant (antifreezeyfPD\UHVXOWLQHQJLQHGDPDJHDQG
may decrease corrosion protection. Organic Additive Technology (OATyfHQJLQHFRRODQWLVGLIIHUHQWDQGVKRXOGQRWEHPL[HGZLWK+\EULG2UJDQLF$GGLWLYH7HFh-
nology (HOATyfHQJLQHFRRODQWDQWLIUHH]H\f or any “globally compatible” coolant (antifreezeyf,IDQRQ2$7HQJLQHFRRODQWDQWLIUHH]H\f is introduced into the
cooling system in an emergency, the cooling system will need to be drained, flushed, and refilled with fresh OAT coolant (conforming to MS.90032yfE\DQ
authorized dealer as soon as possible.
Do not use water alone or alcohol-based engine coolant (antifreezeyfSURGXFWV'RQRWXVHDGGLWLRQDOUXVWLQKLELWRUVRUDQWLUXVWSURGXFWVDVWKH\PD\QRWEH
compatible with the radiator engine coolant and may plug the radiator.
This vehicle has not been designed for use with propylene glycol-based engine coolant (antifreezeyf8VHRISURS\OHQHJO\FROEDVHGHQJLQHFRRODQWDQWi -
freezeyfLVQRWUHFRPPHQGHG.