2008 DODGE RAM 3500 CHASSIS CAB trailer

These airbags are certified to the new Federal regulations
that allow less forceful deployments.
This vehicle may also be equippedwithouta passenger
side airbag. In this case the passenger side airbag will be
replaced with a storage bin.WARNING!
²Do not put anything on or around the airbag
covers or attempt to manually open them. You may
damage the airbags and you could be injured
because the airbags are not there to protect you.
These protective covers for the airbag cushions are
designed to open only when the airbags are inflat-
ing.
²Do not mount any aftermarket equipment such as
trailer brake controllers, snowplow controllers,
auxiliary light switches, radios, etc. on or behind
the knee bolster. Knee bolsters are designed to
work with the air bag and seat belt to protect you.
Mounting any additional equipment on or behind
the knee bolster can cause injury during a crash.
48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NON-DETERGENT OR STRAIGHT MINERAL OILS
MUST NEVER BE USED.
A new engine may consume some oil during its first few
thousand miles of operation. This is a normal part of the
break-in and is not an indication of difficulty.
CAUTION!
²During the first 500 miles (805 km) your new
vehicle is driven, do not tow a trailer. Doing so
may damage your axles, driveline and vehicle.
²Limit your speed to 50 mph (80 km/h) during the
first 500 miles (805 km) of towing.
6.7L Diesel Engine
Your Cummins 24 Valve Turbo Diesel engine does not
require a break-in period due to its construction. Normal
operation is allowed, provided the following recommen-
dations are followed:
NOTE:Light duty operation such as light trailer towing
or no load operation, will extend the time before the
engine is at full efficiency and may effect the performance
of the vehicle aftertreatment (exhaust) system. Reduced
fuel economy and power may be seen at this time.
²Warm up the engine before placing it under load.
²Do not operate the engine at idle for prolonged
periods.
²Use the appropriate transmission gear to prevent
engine lugging.
²Observe vehicle oil pressure and temperature indica-
tors.
72 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

²Check the coolant and oil levels frequently.
²Vary throttle position at highway speeds when carry-
ing or towing significant weight.
Because of the construction of the Cummins Diesel
engine, engine run-in is enhanced by loaded operating
conditions which allow the engine parts to achieve final
finish and fit during the first 6,000 miles (10 000 km).
CAUTION!
²During the first 500 miles (805 km) your new
vehicle is driven, do not tow a trailer. Doing so
may damage your axles, drivetrain and vehicle.
²Limit your speed to 50 mph (80 km/h) during the
first 500 miles (805 km) of towing.
SAFETY TIPS
Transporting Passengers
This vehicle is designed to carry passengers in the cab
only. For safety reasons, NEVER TRANSPORT PASSEN-
GERS IN THE CARGO AREA.
WARNING!
It is extremely dangerous to ride in a cargo area,
inside or outside of a vehicle. In a collision, people
riding in these areas are more likely to be seriously
injured or killed.
Do not allow people to ride in any area of your
vehicle that is not equipped with seats and seat belts.
Be sure everyone in your vehicle is in a seat and
using a seat belt properly.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 73
2

UNDERSTANDING THE FEATURES OF YOUR VEHICLE
CONTENTS
mMirrors...............................81
NInside Mirror.........................81
NAutomatic Dimming Mirror ± If Equipped....82
NOutside Mirrors.......................82
NExterior Mirrors Folding Feature...........83
NElectronic Power Mirrors ± If Equipped......84
NElectric Rear Window Defroster And Heated
Sideview Mirrors ± If Equipped............85
NTrailer Towing Mirrors ± If Equipped........85mHands±Free Communication (UConnectŸ) Ð
If Equipped............................87
NOperations...........................89
NPhone Call Features....................96
NUConnectŸ System Features..............99
NAdvanced Phone Connectivity............103
NThings You Should Know About Your
UConnectŸ System....................106
NGeneral Information...................113
3

Electric Rear Window Defroster and Heated
Sideview Mirrors ± If Equipped
The Electric Rear Window Defroster and Heated
side view mirrors are activated by pressing the
heated grid button, located on the Climate Control panel,
with the ignition On. Turning Off the rear window
defroster or the ignition will deactivate the Electric Rear
Window Defroster and Heated side view mirrors feature.
These features turn off automatically after 15 minutes
have elapsed for the first activation per ignition cycle.
Each subsequent activation of these features per ignition
cycle will shutoff automatically after 10 minutes have
elapsed. To reactivate, simply press the button again.
Trailer Towing Mirrors ± If Equipped
These mirrors are designed with an adjustable mirror
head to provide a greater vision range when towing
extra-wide loads. To change position inboard or out-
board, the mirror head should be rotated (flipped Out or
In). A small blindspot mirror is integrated onto the main
mirror surface.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 85
3

NOTE: Fold the7x10inch trailer towing mirrors
rearward prior to entering an automated car wash.
Blindspot Mirror
Trailer Towing Position
86 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

9. Oil Pressure Gauge
The pointer should always indicate some oil pres-
sure when the engine is running. A continuous
high or low reading, under normal driving conditions,
may indicate a lubrication system malfunction. Immedi-
ate service should be obtained.(See page 406 for more
information.)
NOTE:If the gauge pointer moves to either extreme of
the gauge, the ªCheck Gagesº indicator will illuminate
and a single chime will sound.
10. Transfer Case Position
(See page 289 for more information.)
11 .TOW HAUL
The TOW HAUL button is located at the end of the gear
shift lever. This light will illuminate when the TOW
HAUL OD/OFF button is pushed once.(See page 277 for
more information.)12.OD/OFF
the OD/OFF button is located at the end of the gear shift
lever. This light will illuminate when the TOW HAUL
OD/OFF button is pushed twice.(See page 277 for more
information.)
13. Temperature Gauge
The temperature gauge indicates engine coolant
temperature. Any reading within the normal
range indicates that the cooling system is operat-
ing satisfactorily. The gauge needle will likely indicate a
higher temperature when driving in hot weather, up
mountain grades, in heavy traffic, or when towing a
trailer. If the needle rises to the ª245ÉFº mark, stop the
vehicle, shift into N (Neutral), and increase the engine
idle speed for 2 to 3 minutes. If the temperature reading
does not return to normal, shut your engine OFF and
allow it to cool. Seek authorized service immediately. See
Cooling System information in the section on ªMaintain-
ing Your Vehicle.º
176 UNDERSTANDING YOUR INSTRUMENT PANEL

the electric shift 4WD system. If the SERV 4WD light
stays on or comes on during driving, it means that the
4WD system is not functioning properly and that service
is required.
23. Water In Fuel Indicator Ð Diesel Only
Indicates there is water detected in the fuel
filter. Refer to the Maintenance section, Drain-
ing Fuel/Water Separator Filter, for water
drain procedure.(See page 417 for more infor-
mation.)
24. Transmission Oil Temperature Warning Light
(Automatic Transmissions Only)
This light indicates that there is excessive trans-
mission fluid temperature that might occur
with severe usage such as trailer towing. It may
also occur when operating the vehicle in a high
torque converter slip condition, such as 4-wheel-drive
operation (e.g. snow plowing, off- road operation). If thislight comes on, stop the vehicle and run the engine at idle
or faster, with the transmission in NEUTRAL until the
light goes off.
25. Wait To Start Indicator Ð Diesel Only
The Wait To Start Indicator will illuminate when
the ignition is turned to the run position and the
intake manifold temperature is below 66 degrees F.
Follow engine starting procedure for proper engine start-
ing and operating. Wait until the Wait To Start Indicator
turns OFF then start the vehicle.
NOTE:The Wait To Start Indicator may not illuminate if
the engine coolant temperature is warm enough.
26. Odometer/Trip Odometer Button
Press this button to toggle between the odometer and the
trip odometer display. Holding the button in resets the
trip odometer reading when in trip mode.
182 UNDERSTANDING YOUR INSTRUMENT PANEL