2013 JEEP GRAND CHEROKEE suspension

NOTE:Any chassis/suspension modifications to the ve-
hicle will effect the performance of the Adaptive Cruise
Control.
Activating Adaptive Cruise Control (ACC)
You can only activate ACC if the vehicle speed is above
18 mph (30 km/h).
When the system is turned on and in the READY state,
the Electronic Vehicle Information Center (EVIC) dis-
plays “Adaptive Cruise Ready.”
When the system is OFF, the EVIC displays “Adaptive
Cruise Control Off.” NOTE:
You cannot enable ACC under the following
conditions:
• When in Four-Wheel Drive Low.
• When you apply the brakes.
• When the parking brake is set.
• When the automatic transmission is in PARK, RE-
VERSE or NEUTRAL.
• When pushing the RES +button without a previously
set speed in memory.3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 229

•Brake — If the ACC system predicts that its maximum
braking level is not sufficient to maintain the set
distance, this message will flash and a chime will
sound while ACC continues to apply its maximum
braking capacity. When this occurs, you should imme-
diately apply the brakes as needed to maintain a safe
distance from the vehicle ahead. Refer to “Adaptive
Cruise Control (ACC)” in “Understanding The Fea-
tures Of Your Vehicle” (if equipped).
• Clean Radar Sensor in the Front of Vehicle — If the
ACC system deactivates due to performance limiting
conditions. Refer to “Adaptive Cruise Control (ACC)”
in “Understanding The Features Of Your Vehicle”
(if equipped).
• ACC/FCW Unavailable Vehicle System Error — If the
ACC system turns off due to a temporary malfunction
that limits functionality. Refer to “Adaptive Cruise
Control (ACC)” in “Understanding The Features Of
Your Vehicle” (if equipped). •
ACC/FCW Unavailable Service Radar Sensor — If the
ACC system turns off due to an internal system fault
that requires service from an authorized dealer. Refer
to “Adaptive Cruise Control (ACC)” in “Understand-
ing The Features Of Your Vehicle” (if equipped).
• Cruise Off When Park Brake is On
• ACC Cancelled Below Min. Speed.
• Coolant low
• Service air suspension system
• Oil change due
• Key in ignition
• Lights on
• Key in Ignition Lights On
• Ignition or Accessory On
• Ignition or Accessory On Lights On
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UNDERSTANDING YOUR INSTRUMENT PANEL 331

•Service Air Suspension System — This is displayed
when a fault has occurred in the system. The system
will have limited operation at that point.
• Immediate Air Suspension Service/Repair Required
— This is displayed when a fault has occurred in the
system which results in a complete system shutdown.
The system will be non operational at that point.
• Reduce Speed To Maintain Selected Ride Height —
This message is displayed in advance warning to the
driver that the vehicle will be moved to the next lower
preset position unless the speed is reduced.
• Selected Ride Height Not Permitted — The vehicle
speed is too high to enter one of the preset levels
(Entry/Exit Level/Off Road Ride Height Level 1/Off
Road Ride Height Level 2). •
Air Suspension System Cooling Down – Please Wait —
This message is displayed if the compressor tempera-
ture level is too high. Level control is suspended until
the compressor has cooled down.
• Vehicle Cannot Be Lowered – Door Open — This
message is displayed if a door or the liftgate is ajar and
level control is suspended.
• Air Suspension Temporarily Disabled For Jacking And
Tire Change
• Aerodynamic Ride Height — This is displayed (for
5 seconds) when the vehicle has achieved the Aero-
dynamic Height.
• Performance Features
334 UNDERSTANDING YOUR INSTRUMENT PANEL

collision. For further information, refer to “Adaptive
Cruise Control (ACC)” in “Understanding The Features
Of Your Vehicle.”
•Air Suspension Up
The air suspension up telltale will illuminate
when the air suspension is in use. For further
information, refer to “Starting And Operating”.
• Air Suspension Down
The air suspension down telltale will illumi-
nate when the air suspension is in use. For
further information, refer to “Starting And
Operating”.
• Low Fuel Light
When the fuel level reaches approximately 3.0 gal
(11.0 L) this light will turn on, and remain on until
fuel is added. •
Loose Gascap Indicator
If the vehicle diagnostic system determines
that the fuel filler cap is loose, improperly
installed, or damaged, a loose gascap indicator
will display in the telltale display area. Tighten
the fuel filler cap properly and press the SELECT button
to turn off the message. If the problem continues, the
message will appear the next time the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
• Windshield Washer Fluid Low Indicator
This light will turn on to indicate the wind-
shield washer fluid is low.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 337

WARNING!
Do not downshift for additional engine braking on a
slippery surface. The drive wheels could lose their
grip and the vehicle could skid, causing a collision or
personal injury.
SELEC-TRACK™ — IF EQUIPPED
Description
Selec-Track™ combines the capabilities of the vehicle
control systems, along with driver input, to provide the
best performance for all terrains.Selec-Track™ consists of the following positions:
•Sport – Dry weather, on-road calibration. Performance
based tuning that provides a rear wheel drive feel but
with improved handling and acceleration over a two-
wheel drive vehicle. The customer has the option of
going to partial ESC. The active suspension system
Selec-Track™ Switch
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STARTING AND OPERATING 465

will be in Semi Firm mode, and a green flag will light
up in the instrument cluster. The transmission will
provide a more aggressive shifting pattern (Refer to
“AutoStick” in “Starting And Operating” for further
information). This feature will reset to AUTO on an
ignition cycle.
• Snow – Tuning set for additional stability in inclement
weather. Use on and off road on loose traction surfaces
such as snow. When in Snow mode (depending on
certain operating conditions), the transmission may
use second gear (rather than first gear) during
launches, to minimize wheel slippage.
• Auto – Fully automatic full time four-wheel drive
operation can be used on and off road. Balances
traction with seamless steering feel to provide im-
proved handling and acceleration over two-wheel
drive vehicles. The active suspension system will be in
Touring Mode. •
Track – Track road calibration for use on high traction
surfaces. Driveline is maximized for traction. Some
binding may be felt on less forgiving surfaces. The
electronic brake controls are set to Partial OFF to limit
traction control management of throttle and wheel
spin.
• The transmission will be in SPORT mode and provide
a more aggressive shifting pattern. Refer to
“AutoStick” in “Starting And Operating” for further
information.
• The customer has the option of going to FULL OFF
with no interaction from the ESC System. The active
suspension system will be in Full Firm mode. A green
flag will light up in the instrument cluster.
• This feature will reset to AUTO on an ignition cycle.
• To w – Use this mode for towing. Vehicle suspension
will go to Firm mode and peak power will be limited
466 STARTING AND OPERATING

in the engine controls. Trailer sway control is enabled
in the ESC system. The terrain switch will remain in
this position through an ignition cycle until the cus-
tomer cycles into another position.
Active Damping System
This vehicle is equipped with an electronic controlled
damping system. This system reduces body roll and pitch
in many driving situations including cornering, accelera-
tion and braking. There are 3 modes:
•Touring Mode (Available in terrain positions AUTO
and SNOW) — Used during highway speeds where a
touring suspension feel is desired.
• Firm Mode (Available in terrain positions SPORT and
TOW) — Provides a firm suspension for better
handling.
•
Full Firm (Available in TRACK mode) — Provides a full
firm suspension for an aggressive track experience.
DRIVING THROUGH WATER
Driving through water more than a few inches/
centimeters deep will require extra caution to ensure
safety and prevent damage to your vehicle.
CAUTION!
• Due to lower ground clearance, driving your ve-
hicle up steep driveways, approach ramps or near
parking blocks may cause damage to the front
fascia and ground effects.
• Driving through snow more than 4 inches (100 mm)
deep may cause damage to the front fascia and
ground effects.
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STARTING AND OPERATING 467

Each axle GAWR is determined by the components in the
system with the lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles or suspension
components sometimes specified by purchasers for in-
creased durability does not necessarily increase the vehi-
cle’s GVWR.
Tire Size
The tire size on the Vehicle Certification Label represents
the actual tire size on your vehicle. Replacement tires
must be equal to the load capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to insure that the GVWR has not been exceeded.
The weight on the front and rear of the vehicle should
then be determined separately to be sure that the load is
properly distributed over the front and rear axle. Weigh-
ing the vehicle may show that the GAWR of either the
522 STARTING AND OPERATING