climate control DODGE RAM 2500 DIESEL 2008 3.G User Guide

NOTE:If you experience difficulty in playing a particu-
lar disc, it may be damaged, oversized, or have theft
protection encoding. Try a known good disc before
considering disc player service.
RADIO OPERATION AND CELLULAR PHONES
Under certain conditions, the operation of a cellular
phone in your vehicle can cause erratic or noisy perfor-
mance from your radio. This condition may be lessened
or eliminated by relocating the cellular phone antenna.
This condition is not harmful to the radio. If your radio
performance does not satisfactorily ªclearº by the repo-
sitioning of the antenna, it is recommended that the radio
volume be turned down or off during cellular phone
operation.
CLIMATE CONTROLS
The controls for the heating and ventilation system in this
vehicle consist of a series of rotary knobs. These comfort
controls can be set to obtain desired interior conditions.
Climate Control Location
UNDERSTANDING YOUR INSTRUMENT PANEL 249
4

DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES
The following tire grading categories were established by
the National Highway Traffic Safety Administration. The
specific grade rating assigned by the tire's manufacturer
in each category is shown on the sidewall of the tires on
your vehicle.
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
conditions on a specified government test course. For
example, a tire graded 150 would wear 1-1/2 times as
well on the government course as a tire graded 100. The
relative performance of tires depends upon the actualconditions of their use, however, and may depart signifi-
cantly 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. These grades represent the tire's ability to stop on
wet pavement, as measured under controlled conditions
on specified government test surfaces of asphalt and
concrete. A tire marked C may have poor traction perfor-
mance.
WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or
peak traction characteristics.
IF YOU NEED CONSUMER ASSISTANCE 503
9

Radiator (Coolant Pressure)............... 439
Car Washes............................ 455
Carbon Monoxide Warning...............76,181
Cargo Light............................ 133
Cassette Tape and Player Maintenance......... 247
Catalyst Full Message..................... 425
CD (Compact Disc) Player............202,210,224
Cellular Phone.......................... 89
Center High Mounted Stop Light............ 473
Center Lap Belts......................... 45
Center Seat Storage Compartment.........167,168
Certification Label....................... 352
Charge Air Cooler....................... 442
Chart, Tire Sizing........................ 317
Check Engine Light (Malfunction Indicator
Light)................................ 194
Child Restraint........................61,62
Child Restraint Tether Anchors.............65,69
Child Seat............................62,68Cigar Lighter........................... 162
Cleaning
Wheels............................. 457
Climate Control......................... 249
Clock.....................200,204,212,225,239
Closed Crankcase Ventilation (CCV) Filter...... 426
Clutch Linkage Maintenance................ 445
Compact Disc (CD) Maintenance............. 248
Compact Spare Tire...................... 328
Compass Calibration..................... 150
Compass Variance....................... 150
Console, Overhead....................... 142
Contract, Service........................ 499
Coolant Pressure Cap (Radiator Cap).......... 439
Cooling System......................... 436
Adding Coolant (Antifreeze).............. 439
Coolant Capacity...................... 479
Coolant Level...................436,437,440
Disposal of Used Coolant................ 440
508 INDEX