2010 JEEP GRAND CHEROKEE brakes

Towing Requirements
To promote proper break-in of your new vehicle drive-
train components the following guidelines are recom-
mended:
CAUTION!
•Do not tow a trailer at all during the first 500 miles
(805 km) the new vehicle is driven. The engine,
axle or other parts could be damaged.
•Then, during the first 500 miles (805 km) that a
trailer is towed, do not drive over 50 mph
(80 km/h) and do not make starts at full throttle.
This helps the engine and other parts of the
vehicle wear in at the heavier loads.
WARNING!
Improper towing can lead to an injury accident.
Follow these guidelines to make your trailer towing
as safe as possible:
•Make certain that the load is secured in the trailer
and will not shift during travel. When trailering
cargo that is not fully secured, dynamic load shifts
can occur that may be difficult for the driver to
control. You could lose control of your vehicle and
have an accident.
•When hauling cargo or towing a trailer, do not
overload your vehicle or trailer. Overloading can
cause a loss of control, poor performance or dam-
age to brakes, axle, engine, transmission, steering,
suspension, chassis structure or tires.(Continued)
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STARTING AND OPERATING 295

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 tire
replacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
Towing Requirements – Trailer Brakes

Donot 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).
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.
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STARTING AND OPERATING 297

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.
•Towing any trailer will increase your stopping
distance. When towing you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in an
accident.
Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer in an area away from heavy
traffic.
Automatic Transmission
The DRIVE range can be selected when towing. How-
ever, if frequent shifting occurs while in this range, use
the AutoStickfeature (D-) to select a lower gear range.
NOTE: Using a lower gear range while operating the
vehicle under heavy operating conditions will improve
performance and extend transmission life by reducing
excessive shifting and heat build up. This action will also
provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. Refer to “Mainte-
nance Schedule” for the proper maintenance intervals.
Electronic Speed Control – If Equipped

Do not use in hilly terrain or with heavy loads.
298 STARTING AND OPERATING

Brake System
Fluid Level Check — Brake Master Cylinder
The fluid level in the master cylinder should be checked
whenever the vehicle is serviced, or immediately if the
brake system warning light is on. If necessary, add fluid
to bring level to the full mark on the side of the reservoir
of the brake master cylinder. Be sure to clean the top of
the master cylinder area before removing the cap. With
disc brakes, fluid level can be expected to fall as the brake
pads wear. Brake fluid level should be checked when
pads are replaced. If the brake fluid level is abnormally
low, check system for leaks.
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)
334 MAINTAINING YOUR VEHICLE

30,000 Miles (50,000 km) or
30 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Replace the engine air cleaner filter.
❏ Drain the transfer case and refill.
❏ Adjust parking brake on vehicles
equipped with four-wheel disc brakes.
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.
❏ 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 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
42,000 Miles (70,000 km) or
42 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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60,000 Miles (100,000 km) or 60 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Replace the engine air cleaner filter.
❏ Inspect the brake linings; replace if necessary.
❏ 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.
❏ Drain the transfer case and refill.
❏ Inspect the accessory drive belt(s), replace if necessary.
❏ Flush and replace the engine coolant at 60 months 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
66,000 Miles (110,000 km) or
66 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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84,000 Miles (140,000 km) or
84 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ 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 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
90,000 Miles (150,000 km) or
90 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Replace the engine air cleaner filter.
❏ Inspect and replace PCV valve if
necessary. †
❏ Drain the transfer case and refill.
❏ Adjust parking brake on vehicles
equipped with four-wheel disc brakes.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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120,000 Miles (200,000 km) or 120 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Replace the engine air cleaner filter.
❏ Inspect the brake linings; replace if necessary.
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Inspect the CV joints.
❏ Inspect exhaust system.
❏ Change the automatic transmission fluid and filter.
❏ 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.
❏ Drain the transfer case and refill.
❏ Inspect the accessory drive belt(s), replace if necessary.
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.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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S372 MAINTENANCE SCHEDULES