Jeep Wrangler: Diesel Exhaust Fluid / System Overview
This vehicle is equipped with a Diesel Exhaust
Fluid (DEF) injection system and a Selective
Catalytic Reduction (SCR) catalyst to meet the
emission requirements.
The DEF injection system consists of the
following components:
- DEF tank
- DEF pump
- DEF injector
- Electronically-heated DEF Lines
- NOx sensors
- Temperature sensors
- SCR catalyst
The DEF injection system and SCR catalyst
enable the achievement of diesel emissions
requirements; while maintaining outstanding
fuel economy, drivability, torque and power
ratings.
NOTE:
- Your vehicle is equipped with a DEF injection
system. You may occasionally hear an
audible clicking noise from under the vehicle
at a stop. This is normal operation.
- The DEF pump will run for a period of time
after engine shutdown to purge the DEF
system. This is normal operation and may be
audible from the rear of the vehicle.
Your vehicle is equipped with a Selective
Catalytic Reduction (SCR) system to meet the
very stringent diesel emissions standards
required by the Environmental Protection Agency...
Diesel Exhaust Fluid (DEF) is considered a very
stable product with a long shelf life. If DEF is kept
in temperatures between 10° and 90°F (-12°
and 32°C), it will last a minimum of one year...
Other information:
Do not press the accelerator pedal when
shifting out of PARK or NEUTRAL.
NOTE:
After selecting any gear range, wait a moment
to allow the selected gear to engage before
accelerating. This is especially important when
the engine is cold.
PARK (P)
This range supplements the parking brake by
locking the transmission...
This
warning light will illuminate to
signal a fault with the 4WD system. If
the light stays on or comes on during
driving, it means that the 4WD system
is not functioning properly and that service is
required. We recommend you drive to the
nearest service center and have the vehicle
serviced immediately...