Jeep GRAND CHEROKEE L 2021 Owner's Manual page 134

132 STARTING AND OPERATING
Aero Height (Lowers the vehicle approximately

-0.8 inches (-21 mm) Front and -1.0 inches
(-25 mm) Rear) – This position provides
improved aerodynamics by lowering the vehicle.
The vehicle will automatically enter Aero Height
when the vehicle speed remains between
62 mph (100 km/h) and 66 mph (106 km/h)
for greater than 20 seconds or if the vehicle
speed exceeds 66 mph (106 km/h). The vehicle
will return to NRH from Aero Height if the vehicle
speed remains between 30 mph (48 km/h) and
35 mph (56 km/h) for greater than 20 seconds
or if the vehicle speed falls below 30 mph
(48 km/h). The vehicle will enter Aero Height,
regardless of vehicle speed if the vehicle is in
SPORT mode.
Entry/Exit Height (Lowers the vehicle approxi-

mately -1.8 inches (-46 mm) Front and
-2.0 inches (-50 mm) Rear) – This position
lowers the vehicle for easier passenger entry
and exit as well as lowering the rear of the
vehicle for easier loading and unloading of
cargo. To enter Entry/Exit Mode, push the
DOWN button twice from NRH while the vehicle
speed is below 25 mph (40 km/h). Once the
vehicle speed goes below 15 mph (24 km/h)
the vehicle height will begin to lower. If the
vehicle speed remains between 15 mph
(24 km/h) and 25 mph (40 km/h) for greater
than 20 seconds, or the vehicle speed exceeds
25 mph (40 km/h), the Entry/Exit Height
change will be canceled. To exit Entry/Exit
Mode, push the UP button twice while in Entry/
Exit Height or drive the vehicle over 15 mph
(24 km/h).
NOTE:
Automatic lowering of the vehicle into Entry/Exit
Mode can be enabled through the Uconnect
Touchscreen Radio. If this feature is enabled, the
vehicle will only lower if the gear selector is in
PARK, the terrain switch is in AUTO, the transfer
case is in AUTO and the vehicle level should be
either in Normal or Aero Height. The vehicle will not
automatically lower if the air suspension level is in
OR2 or OR1. If the vehicle is equipped with
Intrusion Theft Module (ITM), the lowering will be
suppressed when the ignition is switched OFF and
the door is open to prevent setting the alarm off.
When towing, the automatic Entry/Exit mode may
be disabled through Uconnect to prevent vehicle
and trailer movement when the gear selector is
moved to PARK.
The Selec-Terrain switch will automatically change
the vehicle to the proper height based on the
position of the Selec-Terrain switch. The height can
be changed from the default Selec-Terrain setting
by normal use of the air suspension buttons
page 130.
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The system requires that the engine be running for
all changes. When lowering the vehicle all of the
doors must be closed. If a door is opened at any
time while the vehicle is lowering the change will
not be completed until the open door(s) is/are
closed.
The Quadra-Lift air suspension system uses a
lifting and lowering pattern which keeps the
headlights from incorrectly shining into oncoming
traffic. When raising the vehicle, the rear of the
vehicle will move up first and then the front. When
lowering the vehicle, the front will move down first
and then the rear.
After the engine is turned off, it may be noticed that
the air suspension system operates briefly; this is
normal. The system is correcting the position of the
vehicle to ensure a proper appearance.
To assist with changing a spare tire, the
Quadra-Lift air suspension system has a feature
which allows the automatic leveling to be disabled
page 193.
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NOTE:
If equipped with a touchscreen radio, all enabling/
disabling of air suspension features must be done
through the radio page 193.
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WARNING!
The air suspension system uses a high pressure
volume of air to operate the system. To avoid
personal injury or damage to the system, see an
authorized dealer for service.