wheel torque JEEP COMPASS 2015 1.G Owners Manual

FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED
This feature provides full time, on-demand, four–wheel
drive (4WD).
Where one or more wheels have wheel spin or if addi-
tional traction is needed in sand, deep snow, or loose
traction surfaces, activate the “4WD LOCK” switch by
pulling up once and releasing. This locks the center
coupling allowing more torque to be sent to the rear
wheels. The “4WD Indicator Light” will come on in the
cluster. This can be done on the fly, at any vehicle speed.
To deactivate, simply pull on the switch one more time.
The “4WD Indicator Light” will then go out.
NOTE:Refer to “Electronic Brake Control System/
Electronic Stability Control (ESC)” in “Starting and Op-
erating” for further information.
Four-Wheel Drive Switch
5
STARTING AND OPERATING 341

CAUTION!
Muddy waters can reduce the cooling system effec-
tiveness by depositing debris onto the radiator.
After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you
can get any problems taken care of right away and have
your vehicle ready when you need it.
•Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
•Inspect the radiator for mud and debris and clean as
required.
•Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
•Check for accumulations of plants or brush. These
things could be a fire hazard. They might hide damage
to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
•After extended operation in mud, sand, water, or
similar dirty conditions, have the radiator, fan, brake
rotors, wheels, brake linings, and axle yokes inspected
and cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
(Continued)
350 STARTING AND OPERATING

WARNING!
The Anti-Lock Brake System (ABS) contains sophis-
ticated electronic equipment that may be susceptible
to interference caused by improperly installed or
high output radio transmitting equipment. This in-
terference can cause possible loss of Anti-Lock brak-
ing capability. Installation of such equipment should
be performed by qualified professionals.
All vehicle wheels and tires must be the same size and
type and tires must be properly inflated to produce
accurate signals for the computer.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) and engine
power is reduced to provide enhanced acceleration and
stability. A feature of the TCS system functions similar to
a limited slip differential and controls the wheel spin
across a driven axle. If one wheel on a driven axle is
spinning faster than the other, the system will apply the
brake of the spinning wheel. This will allow more engine
torque to be applied to the wheel that is not spinning.
This feature remains active even if TCS and ESC are in
either the “Partial Off” or “Full Off” modes. Refer to
“Electronic Stability Control (ESC)” in this section of this
manual.
Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s braking
capability during emergency braking maneuvers. The
system detects an emergency braking situation by sens-
ing the rate and amount of brake application and then
applies optimum pressure to the brakes. This can help
reduce braking distances. The BAS complements the
Anti-Lock Brake System (ABS). Applying the brakes very
quickly results in the best BAS assistance. To receive the
5
STARTING AND OPERATING 359

WHAT TO DO IN EMERGENCIES
CONTENTS
!HAZARD WARNING FLASHERS...........429
!IF YOUR ENGINE OVERHEATS............429
!WHEEL AND TIRE TORQUE
SPECIFICATIONS......................430
▫Torque Specifications..................430
!JACKING AND TIRE CHANGING..........432
▫Jack Location........................433
▫Spare Tire Stowage....................433
▫Preparations For Jacking................433
▫Jacking Instructions...................434
▫Road Tire Installation...................440
!TIRE SERVICE KIT — IF EQUIPPED.........442
▫Tire Service Kit Storage.................442
▫Tire Service Kit Components And Operation . . .443
▫Tire Service Kit Usage Precautions..........444
▫Sealing A Tire With Tire Service Kit.........446
!JUMP-STARTING PROCEDURES...........452
▫Preparations For Jump-Start..............453
▫Jump-Starting Procedure................454
6

CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the pointer rises to the H (red) mark, the
instrument cluster will sound a chime. When safe,
pull over and stop the vehicle with the engine at idle.
Turn off the air conditioning and wait until the pointer
drops back into the normal range. If the pointer
remains on the H (red) mark for more than a minute,
turn the engine off immediately and call for service.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to ensure
that the wheel is properly mounted to the vehicle. Any
time a wheel has been removed and reinstalled on the
vehicle the lug nuts/bolts should be torqued using a
properly calibrated torque wrench.
Torque Specifications
Lug Nut/Bolt
Torque
**Lug Nut/
Bolt Size
Lug Nut/Bolt
Socket Size
100 Ft-Lbs
(135 N·m)
M12 x 1.25 19 mm
**Use only Chrysler recommended lug nuts/bolts and
clean or remove any dirt or oil before tightening.
430 WHAT TO DO IN EMERGENCIES

Inspect the wheel mounting surface prior to mounting
the tire and remove any corrosion or loose particles.
Tighten the lug nuts/bolts in a star pattern until each
nut/bolt has been tightened twice.
After 25 miles (40 km) check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly seated
against the wheel.
Wheel Mounting Surface
Torque Patterns6
WHAT TO DO IN EMERGENCIES 431

7.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
lug nut has been tightened twice. Refer to “Torque
Specifications” in this section for proper lug nut torque.
8.Remove the wheel blocks and lower the jack until it is
free. Release the parking brake. Reassemble the lug
wrench to the jack assembly and stow it in the spare tire
area. Secure the assembly using the means provided.
WARNING!
A loose tire or jack thrown forward in a collision or
hard stop could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided.
9. Place the deflated (flat) tire in the cargo area,have the
tire repaired or replaced as soon as possible.
WARNING!
A loose tire thrown forward in a collision or hard stop
could injure the occupants in the vehicle. Have the
deflated (flat) tire repaired or replaced immediately.
10. Check the spare tire pressure as soon as possible.
Correct the tire pressure as required.
11. 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.
Road Tire Installation
Vehicles Equipped With Wheel Covers
1. Mount the road tire on the axle.
2.Align the valve notch in the wheel cover with the valve
stem on the wheel. Install the cover by hand. Do not use
a hammer or excessive force to install the cover.
440 WHAT TO DO IN EMERGENCIES

3.Install the five wheel 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.
4. Lower the vehicle to the ground by turning the jack
handle counterclockwise.
5. Finish tightening the lug nuts. Push down on the
wrench while at the end of the handle for increased
leverage. Refer to “Torque Specifications” in this sec-
tion for correct lug nut torque.
6. 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.
Tire And Wheel Cover Or Center Cap
1 — Valve Stem4 — Wheel Cover2—ValveNotch5—RoadWheel3—WheelLugNut
6
WHAT TO DO IN EMERGENCIES 441

Vehicles Without Wheel Covers
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 fully tighten the lug nuts 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. Refer to “Torque Specifications” in this sec-
tion for correct lug nut torque.
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.
TIRE SERVICE KIT — IF EQUIPPED
Small punctures up to¼” (6 mm) in the tire tread can be
sealed with Tire Service Kit. Foreign objects (e.g., screws
or nails) should not be removed from the tire. Tire Service
Kit can be used in outside temperatures down to approxi-
mately -4°F (-20°C).
This kit will provide a temporary tire seal, allowing you
to drive your vehicle up to 100 miles (160 km) with a
maximum speed of 55 mph (90 km/h).
Tire Service Kit Storage
The Tire Service Kit is located under the load floor in the
cargo area.
442 WHAT TO DO IN EMERGENCIES