Jeep Wrangler: STARTING AND OPERATING / ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and
permits quicker starts in cold weather. Connect
the cord to a standard 110-115 Volt AC
electrical outlet with a grounded, three-wire
extension cord.

Diesel Engine Block Heater Cord Location
The engine block heater cord is found under the
hood bundled up next to the Power Distribution
Center (PDC).
For diesel engines, its use is recommended for
environments that routinely fall below -10°F
(-23°C). It should be used when the vehicle has
not been running for long periods of time and
should be plugged in two hours prior to start. Its
use is required for cold starts with temperatures
under -20°F (-28°C).
The engine block heater cord is found under the
hood bundled in front of the battery tray.
WARNING!
Remember to disconnect the engine block
heater cord before driving. Damage to the
110-115 Volt AC electrical cord could cause
electrocution.
All engine failures give some warning before the
parts fail. Be on the alert for changes in
performance, sounds, and visual evidence that
the engine requires service...
A long break-in period is not required for the
engine and drivetrain (transmission and axle) in
your vehicle.
Drive moderately during the first 300 miles
(500 km)...
Other information:
The cap must be fully tightened to prevent loss
of engine coolant (antifreeze), and to ensure
that engine coolant will return to the radiator
from the coolant expansion bottle/recovery
tank if so equipped.
The cap should be inspected and cleaned if
there is any accumulation of foreign material on
the sealing surfaces...
The rearview mirror can be adjusted up, down,
left, and right. The mirror should be adjusted to
center on the view through the rear window.
The mirror automatically adjusts to headlight
glare from vehicles behind you.
NOTE:
The Automatic Dimming feature is disabled
when the vehicle is in REVERSE to improve the
driver’s view...