2010 JEEP GRAND CHEROKEE brakes

Towing Requirements – Tires

Do not attempt to tow a trailer while using a compact
spare tire.
Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting and Oper-
ating” for proper tire inflation procedures.
Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires – General
Information” in “Starting and Operating” for proper
inspection procedure.
When replacing tires, refer to “Tires – General Infor-
mation” in “Starting and Operating” for proper tirereplacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
Towing Requirements – Trailer Brakes

Do
not interconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
An electronically-actuated trailer brake controller is
required when towing a trailer with electronically-
actuated brakes. When towing a trailer equipped with
a hydraulic surge-actuated brake system, an electronic
brake controller is not required.
Trailer brakes are recommended for trailers over
1,000 lbs (454 kg), and required for trailers in excess of
2,000 lbs (907 kg).
334 STARTING AND OPERATING

CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have an
accident.(Continued)
WARNING! (Continued)
•Towing any trailer will increase your stopping
distance. When towing, you should allow for ad-
ditional space between your vehicle and the ve-
hicle in front of you. Failure to do so could result
in an accident.
Towing Requirements – Trailer Lights and Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package includes a seven–pin connector
at the rear of the vehicle and a four-pin harness located
under the rear bumper. The four-pin harness must be
unclipped before use. Use a factory-approved trailer
harness and connector.5
STARTING AND OPERATING 335

The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustrations.
Four-Pin Connector
1 — Female Pins4 — Park
2 — Male Pin 5 — Left Stop/Turn
3 — Ground 6 — Right Stop/Turn
Seven-Pin Connector
1 — Battery5 — Ground
2 — Backup Lamps 6 — Left Stop/Turn
3 — Right Stop/Turn 7 — Running Lamps
4 — Electric Brakes
336 STARTING AND OPERATING

WARNING!
Riding the brakes can lead to brake failure and
possibly an accident. Driving with your foot resting
or riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You would not have your full
braking capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the brake system warning lamp indicates system
failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” dot and a “MIN” dot. The fluid level must be
kept within these two dots. Do not add fluid above the
MAX mark, because leakage may occur at the cap.With disc brakes, the fluid level can be expected to fall as
the brake linings wear. However, an unexpected drop in
fluid level may be caused by a leak and a system check
should be conducted.
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further information.
WARNING!
•Use only manufacturer’s recommended brake
fluid. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further
information. Using the wrong type of brake fluid
can severely damage your brake system and/or
impair its performance. The proper type of brake
fluid for your vehicle is also labeled on the origi-
nal factory installed hydraulic master cylinder
reservoir.
(Continued)
386 MAINTAINING YOUR VEHICLE

30,000 Miles (50,000 km) or
30 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Replace the spark plugs (3.7L and
5.7L Engines).
❏ Adjust parking brake on vehicles
equipped with four-wheel disc brakes.
❏ Inspect the transfer case fluid.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
36,000 Miles (60,000 km) or 36 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ If using your vehicle for any of the following: Dusty or off-road conditions. Inspect the
engine air cleaner filter; replace if necessary.
❏ Inspect the brake linings, replace if necessary.
❏ Inspect the front and rear axle fluid, change if using your vehicle for police, taxi, fleet,
off-road or frequent trailer towing.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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SMAINTENANCE SCHEDULES 423

54,000 Miles (90,000 km) or
54 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Inspect the front and rear axle fluid,
change if using your vehicle for police,
taxi, fleet, off-road or frequent trailer
towing.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
60,000 Miles (100,000 km) or 60 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Inspect the brake linings; replace if necessary.
❏ Replace the ignition cables (3.7L Engine).
❏ Replace the spark plugs (3.7L and 5.7L Engines).
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Change the automatic transmission fluid and filter(s) if using your vehicle for any of the
following: police, taxi, fleet, or frequent trailer towing.
❏ Change the transfer case fluid if using your vehicle for any of the following: police, taxi,
fleet, or frequent trailer towing.
❏ Flush and replace the engine coolant if not done at 102,000 miles (170 000 km).
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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SMAINTENANCE SCHEDULES 425

90,000 Miles (150,000 km) or 90 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Replace the spark plugs (3.7L and 5.7L Engines).
❏ Inspect and replace PCV valve if necessary. †
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Inspect the transfer case fluid.
❏ Inspect the front and rear axle fluid, change if using your vehicle for police, taxi, fleet,
off-road or frequent trailer towing.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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S428 MAINTENANCE SCHEDULES

120,000 Miles (200,000 km) or 120 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Replace the ignition cables (3.7L Engine).
❏ Replace the spark plugs (3.7L and 5.7L Engines).
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Inspect the brake linings; replace if necessary.
❏ Inspect the CV joints.
❏ Inspect exhaust system.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
❏ Change the automatic transmission fluid and filter(s).
❏ Change the transfer case fluid.
❏ Replace the accessory drive belt(s).
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
126,000 Miles (210,000 km) or
126 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Inspect the front and rear axle fluid,
change if using your vehicle for police,
taxi, fleet, off-road or frequent trailer
towing.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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SMAINTENANCE SCHEDULES 431