Jeep Gladiator 2021 Owner's Manual page 186

184 STARTING AND OPERATING
Display Warnings And Maintenance
"Wipe Front Radar Sensor In Front Of Vehicle"
Warning
The "ACC/FCW Unavailable Wipe Front Radar
Sensor" warning will display and a chime will
indicate when conditions temporarily limit
system performance.
This most often occurs at times of poor visibility,
such as in snow or heavy rain. The ACC system
may also become temporarily blinded due to
obstructions, such as mud, dirt or ice. In these
cases, the instrument cluster display will display
the above message and the system will
deactivate.
This message can sometimes be displayed
while driving in highly reflective areas (i.e. ice
and snow, or tunnels with reflective tiles). The
ACC system will recover after the vehicle has left
these areas. Under rare conditions, when the
radar is not tracking any vehicles or objects in
its path this warning may temporarily occur.
NOTE:
If the "ACC/FCW Unavailable Wipe Front Radar
Sensor" warning is active, Fixed Speed Cruise
Control is still available.
If weather conditions are not a factor, the driver
should examine the sensor. It may require
cleaning or removal of an obstruction. The
sensor is located in the center of the vehicle
behind the lower grille.
To keep the ACC System operating properly, it is
important to note the following maintenance
items:
Always keep the sensor clean. Carefully wipe

the sensor lens with a soft cloth. Be cautious
not to damage the sensor lens.
Do not remove any screws from the sensor.

Doing so could cause an ACC system
malfunction or failure and require a sensor
realignment.
If the sensor or front end of the vehicle is

damaged due to a collision, see an autho-
rized dealer for service.
Do not attach or install any accessories near

the sensor, including transparent material or
aftermarket grilles. Doing so could cause an
ACC system failure or malfunction.
When the condition that deactivated the system
is no longer present, the system will return to
the "Adaptive Cruise Control Off" state and will
resume function by simply reactivating it.
NOTE:
If the "ACC/FCW Unavailable Wipe Front Radar
Sensor" message occurs frequently (e.g. more
than once on every trip) without any snow, rain,
mud, or other obstruction, have the radar
sensor realigned at an authorized dealer.
"Clean Front Windshield" Warning
The "ACC/FCW Limited Functionality Clean
Front Windshield" warning will display and a
chime will indicate when conditions temporarily
limit system performance. This most often
occurs at times of poor visibility, such as in
snow or heavy rain and fog. The ACC system
may also become temporarily blinded due to
obstructions, such as mud, dirt, or ice on
windshield and fog on the inside of glass. In
these cases, the instrument cluster display will
read "ACC/FCW Limited Functionality Clean
Front Windshield" and the system will have
degraded performance.