2007 JEEP GRAND CHEROKEE climate control

debris due to the climate control sensor’s location.
Mud on the windshield may also cause poor operation
of this system.
•To provide you with maximum comfort in the auto-
matic mode, during cold start-ups the blower fan will
remain off until the engine warms up. However, the
fan will engage immediately if the defrost mode is
selected or if you manually select a blower speed.
•Under certain conditions (after the vehicle is turned
off) the climate control system may recalibrate and a
noise may be heard for 20 seconds. This is part of
normal operation.
•Most of the time, when in Automatic operation, you
can temporarily put the system into recirculation
mode by pressing the Recirc button. However, under
certain conditions in automatic the system is blowing
air out of the defrost vents. When these conditions arepresent and the Recirc button is pressed the indicator
will flash and remain off. This tells you that you are
unable to go into recirculation mode at this time. If you
would like to go to Recirculation mode, you must first
move your mode knob to panel, panel/floor or floor,
then hit the Recirc button. This feature will reduce the
possibility of window fogging.
Manual Operation
This system offers a full complement of manual override
features which consist of Blower Preferred Automatic,
Mode Preferred Automatic with Manual Air Temperature
Control and Manual. This means the customer can over-
ride the blower, mode and disable automatic temperature
control completely.
NOTE:Please read the Automatic Temperature Control
Operation Chart below for details.
238 UNDERSTANDING YOUR INSTRUMENT PANEL

Call Toll Free at:
•1–800–890–4038 (U.S.)
•1–800–387–1143 (Canada)
Or
Visit us on the World Wide Web at:
•www.techauthority.daimlerchrysler.com
•www.daimlerchrysler.ca/manuals
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES
The following describes the tire grading categories estab-
lished by the National highway Traffic Safety Adminis-
tration. The specific grade rating assigned by the tire’s
manufacturer in each category is shown on the sidewall
of the tires on your car.All Passenger Car Tires Must Conform to Federal Safety
Requirements in Addition to These Grades.
Treadwear
The treadwear grade is a comparative rating based on the
wear rate of the tire when tested under controlled con-
ditions on a specified government test course. For ex-
ample, a tire graded 150 would wear one and a half (1
1/2) times as well on the government course as a tire
graded 100. The relative performance of tires depends
upon the actual conditions of their use, however, and
may depart significantly from the norm due to variations
in driving habits, service practices and differences in road
characteristics and climate.
Traction Grades
The traction grades, from highest to lowest, are AA, A, B,
and C. Those grades represent the tire’s ability to stop on
wet pavement as measured under controlled conditions
IF YOU NEED CONSUMER ASSISTANCE 449
9

CargoLight ............................ 159
Cargo Load Floor........................ 163
Cargo Tie-Downs........................ 161
Catalytic Converter...................... 368
Caution, Exhaust Gas..................... 147
CD (Compact Disc) Player...............199,213
Cellular Phone.......................... 77
Center High Mounted Stop Light............ 406
Certification Label....................... 316
Chains, Tire............................ 294
Changing A Flat Tire..................... 339
Chart, Tire Sizing........................ 280
Checks, Safety......................... 65,66
Child Restraint...................... 54,60,62
Child Restraint Tether Anchors............. 58,60
Child Safety Locks........................ 28
Climate Control......................... 233
Clock ...........................201,215,221
Compact Disc (CD) Maintenance............. 232Compass.............................. 191
Compass Variance....................... 196
Computer, Trip/Travel.................... 191
Console, Overhead....................... 145
Contract, Service........................ 446
Converter, Catalytic...................... 368
Cooling System......................... 376
Adding Coolant (Antifreeze).............. 378
Coolant Capacity...................... 407
Coolant Level......................... 380
Disposal of Used Coolant................ 380
Drain, Flush, and Refill.................. 377
Inspection........................... 376
Points to Remember.................... 380
Pressure Cap......................... 379
Radiator Cap......................... 379
Selection of Coolant (Antifreeze).........377,407
Crankcase Emission Control System.......... 369
Cruise Control (Speed Control).............. 126
454 INDEX