If Your Engine Overheats - Jeep Wrangler 2012 User Manual

WHAT TO DO IN EMERGENCIES
• If this HOTOIL message turns on, stop the vehicle and run the engine at idle or
faster, with the transmission in NEUTRAL until the message turns off.
Continuous driving with the Transmission Temperature HOTOIL Warning
message illuminated will eventually cause severe transmission damage and
transmission failure.
Continued operation with the Transmission Temperature HOTOIL Warning
message illuminated could cause the fluid to boil over, come into contact with the
hot engine or exhaust components causing a fire that may result in personal
injury.

IF YOUR ENGINE OVERHEATS

• In any of the following situations, you can reduce the potential for overheating by
taking the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, place the transmission in NEUTRAL, but do not
increase engine idle speed.
NOTE: There are steps that you can take to slow down an impending overheat
condition:
• If your air conditioner (A/C) is on, turn it off. The A/C system adds heat to the engine
cooling system and turning the A/C off can help remove this heat.
• You can also turn the temperature control to maximum heat, the mode control to floor
and the blower control to high. This allows the heater core to act as a supplement to
the radiator and aids in removing heat from the engine cooling system.
Driving with a hot cooling system could damage your vehicle. If the temperature
gauge reads 240°F (116 °C) or greater pull over and stop the vehicle. Idle the
vehicle with the air conditioner turned off until the pointer drops back into the
normal range 200–230°F (93–110°C). If the pointer remains at 240°F (116°C) or
greater and you hear a chime, turn the engine off immediately and call for service.
You or others can be badly burned by hot engine coolant (antifreeze) or steam
from 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 try to open a cooling
system pressure cap when the radiator or coolant bottle is hot.
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CAUTION!
WARNING!
CAUTION!
WARNING!