2016 JEEP GRAND CHEROKEE wheel torque

QUADRA-TRAC I FOUR-WHEEL DRIVE
Quadra-Trac I Operating Instructions/Precautions — 3.6L Only
The Quadra-Trac I is a single-speed (HI range only) transfer case, which provides
convenient full-time four-wheel drive. No driver interaction is required. The Brake
Traction Control (BTC) System, which combines standard ABS and Traction Control,
provides resistance to any wheel that is slipping to allow additional torque transfer to
wheels with traction.
QUADRA-TRAC II/QUADRA-DRIVE II FOUR-WHEEL
DRIVE
Quadra-Trac II/Quadra-Drive II Operating Instructions/Precautions
The Quadra-Trac II/Quadra-Drive II transfer case is fully automatic in the normal
driving 4WD HI mode. The Quadra-Trac II/Quadra-Drive II transfer case provides
three mode positions:
• 4WD HI
• NEUTRAL
• 4WD LOW
This transfer case is fully automatic in
the 4WD HI mode.
When additional traction is required, the
4WD LOW position can be used to lock
the front and rear driveshafts together
and force the front and rear wheels to
rotate at the same speed. The 4WD LOW
position is intended for loose, slippery
surfaces only. Driving in the 4WD LOW
position on dry, hard-surfaced roads may
cause increased tire wear and damage to
driveline components.
When operating your vehicle in 4WD
LOW, the engine speed is approximately
three times that of the 4WD HI position at
a given road speed. Take care not to
overspeed the engine and do not exceed
25 mph (40 km/h).
The Neutral position disengages the pow-
ertrain from the wheels, allowing the ve-
hicle to be flat towed behind another vehicle.
Four Wheel Drive Controls
1 — 4WD Low Button
2 — Rotary Mode Control
3 — NEUTRAL Button
4 — Hill Descent Button
OFF-ROAD CAPABILITIES (4WD OPERATION)
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Engine
When selected, this screen displays the following values:
Vehicle Speed
• Shows the actual vehicle speed in mph or (km/h).
Instantaneous Horsepower/Kilowatts
• Shows instantaneous engine power.
Instantaneous Torque
• Shows instantaneous engine torque in Foot Pounds (lb/ft) or Newton Meters (Nm).
Oil Pressure
• Shows actual oil pressure in Pounds per Square Inch (PSI) or Kilopascals (kPa).
Gear
• Shows the current (or pending) operating transmission gear of the vehicle.
SUMMER/THREE-SEASON TIRES
• This vehicle may be equipped with wheels and tires to enhance traction in bothwet and dry conditions.
• Summer tires are not intended to be driven in snow or on ice.
• Summer tires have significantly reduced grip in temperatures below 50°F (10°C).
• Use Summer tires only in sets of four.
NOTE:
Summer tires will not contain the all season designation or mountain/snowflake
symbol on the sidewall of the tire.
WARNING!
Do not use summer tires in snow/ice conditions. You could lose control, resulting
in severe injury or death. Driving too fast for conditions also creates the possibility
of loss of vehicle control.
SRT
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7. Remove the lug nuts and wheel.
8. Position the spare wheel/tire on the vehicle and install the lug nuts with thecone-shaped end toward the wheel. Lightly tighten the nuts.
CAUTION!
Be sure to mount the spare tire with the valve stem facing outward. The vehicle
could be damaged if the spare tire is mounted incorrectly.
WARNING!
To avoid the risk of forcing the vehicle off the jack, do not tighten the lug nuts fully
until the vehicle has been lowered. Failure to follow this warning may result in
serious injury.
9. Lower the vehicle by turning the jack screw counterclockwise, and remove the jack and wheel blocks.
10. Finish tightening the lug nuts. Push down on the wrench while at the end of the handle for increased leverage. Tighten the lug nuts in a star pattern until each
nut has been tightened twice. The correct tightness of each lug nut is 130 ft-lbs
(176 N·m). If in doubt about the correct tightness, have them checked with a
torque wrench by your authorized dealer or service station.
NOTE:
For the SRT model the correct wheel nut tightness is 110 ft lbs (149 N·m).
11. Lower the jack to the fully closed position and return it and the tools to the proper positions in the foam tray.
Installing Spare Wheel/Tire
WHAT TO DO IN EMERGENCIES
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12. Remove the small center cap and securely store the road wheel in the cargo area.
13. Have the aluminum road wheel andtire repaired as soon as possible,
properly secure the spare tire with
the special wing nut torqued to
3.7 ft-lbs (5 N·m), reinstall the jack
and tool kit foam tray, and latch the
rear load floor cover.
NOTE:
Do not drive with the spare tire installed
for more than 50 miles (80 km) at a max
speed of 50 mph (80 km/h).
WARNING!
A loose tire or jack thrown forward in a collision or hard stop could endanger the
occupants of the vehicle. Always stow the jack parts and the spare tire in the
places provided. Have the deflated (flat) tire repaired or replaced immediately.
Road Tire Installation
1. Mount the road tire on the axle.
2. Install the remaining lug nuts with the cone shaped end of the nut toward the wheel. Lightly tighten the lug nuts.
WARNING!
To avoid the risk of forcing the vehicle off the jack, do not tighten the lug nuts fully
until the vehicle has been lowered. Failure to follow this warning may result in
personal injury.
3. Lower the vehicle to the ground by turning the jack handle counterclockwise.
4. Finish tightening the lug nuts. Push down on the wrench while at the end of the handle for increased leverage. Tighten the lug nuts in a star pattern until each nut
has been tightened twice. The correct tightness of each lug nut is 130 ft-lbs
(176 N·m). If in doubt about the correct tightness, have them checked with a
torque wrench by your authorized dealer or service station.
NOTE:
For the SRT model the correct wheel nut tightness is 110 ft lbs (149 N·m).
5. After 25 miles (40 km) check the lug nut torque with a torque wrench to ensure that all lug nuts are properly seated against the wheel.
Spare Tire
WHAT TO DO IN EMERGENCIES
205