2007 RAM CHASSIS CAB wheel

ELECTRONIC SPEED CONTROL — IF EQUIPPED
When engaged, this device takes over accelerator opera-
tion at speeds greater than 35 mph (56 km/h). The
controls are mounted on the steering wheel. To Activate
Push the ON/OFF button to the ON position. An indi-
cator light in the instrument cluster illuminates when the
system is on.
To Set At A Desired Speed
When the vehicle has reached the desired speed, press
and release the SET button. Release the accelerator and
the vehicle will operate at the selected speed.
To Deactivate
A soft tap on the brake pedal, normal braking, clutch
pressure while slowing the vehicle, or pressing the CAN-
CEL button will deactivate speed control without erasing
the memory. Pushing the ON/OFF button to the OFF
position or turning off the ignition erases the memory.132 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

CAUTION!Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and driveability.
If the MIL is flashing, severe catalytic converter
damage and power loss will soon occur. Immediate
service is required.
18. Brake System Warning Light
This light illuminates when the ignition key is turned to
the ON position and remains on for a few seconds. If the
light stays on longer, it may be an indication that the
parking brake has not been released. This light will
illuminate if the brake fluid is low, especially when
braking or accelerating hard. This light will illuminate if
the ABS indicator light has a malfunction. This light will
flash if the engine is running and the parking brake is on. If the light remains on when the parking brake is
released, it indicates a possible brake hydraulic system
malfunction. In this case, the light will remain on until
the cause is corrected.
If brake failure is indicated, immediate repair is necessary
and continued operation of the vehicle in this condition is
dangerous.
Acceleration which causes the rear wheels to slip for a
period of time may result in the red brake light illumi-
nating and a brake switch code being set on ABS
equipped vehicles. Depressing the brake pedal should
extinguish the red brake light.
19. ABS Warning Light
This light monitors the Anti-Lock Brake System
which is described elsewhere in this manual. This
light will come on when the ignition key is turned to the
ON position and may stay on for five seconds. If the ABS
light remains on or comes on during driving, it indicates UNDERSTANDING YOUR INSTRUMENT PANEL 177
4

23. Water In Fuel Indicator—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 410 for more infor-
mation.)
24. Low Washer Fluid Light
This light comes on when the washer fluid level falls
below approximately 1/4 full. The light will remain on
until fluid is added and ignition switch is cycled.
25. 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 this light comes on, stop the vehicle and run the engine at idle
or faster, with the transmission in NEUTRAL until the
light goes off.
26. Wait To Start Indicator—Diesel Only
The Wait To Start Indicator will illuminate when
the ignition is turned to the run position and the
ambient temperature is below 66 degrees F. Follow
engine starting procedure for proper engine starting and
operating. Wait until the Wait To Start Indicator turns
OFF then start the vehicle.
27. 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.
28. Fuel Gauge
Shows level of fuel in tank when ignition switch is in the
ON position. UNDERSTANDING YOUR INSTRUMENT PANEL 179
4

Electrical Disturbances
Radio waves may pick up electrical disturbances during
transmission. They mainly affect the wave amplitude,
and thus remain a part of the AM reception. They
interfere very little with the frequency variations that
carry the FM signal.
AM Reception
AM sound is based on wave amplitude, so AM reception
can be disrupted by such things as lightning, power lines
and neon signs.
FM Reception
Because FM transmission is based on frequency varia-
tions, interference that consists of amplitude variations
can be filtered out, leaving the reception relatively clear,
which is the major feature of FM radio. NOTE: The radio, steering wheel radio controls (if
equipped), and 6 disc CD/DVD changer (if equipped)
will remain active for up to 10 minutes after the ignition
switch has been turned off. Opening a vehicle front door
will cancel this feature.
SALES CODE REF — AM/FM/CD (SINGLE DISC)
RADIO WITH OPTIONAL SATELLITE RADIO AND
HANDS FREE PHONE CAPABILITY
NOTE: The radio sales code is located on the lower right
side of your radio faceplate.182 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE: Pressing the  SEEK  or  SCAN  button, while
performing a music type scan, will change the channel by
one and stop the search. Pressing a pre-set memory
button during a music type scan, will call up the memory
channel and stop the search.
PTY Button  SEEK 
When the desired program is obtained, press the  SEEK 
button within five seconds. The channel will change to
the next channel that matches the program type selected.
Satellite Antenna
To ensure optimum reception on vehicles available with
a luggage rack, do not place items on the roof around the
rooftop antenna location. Metal objects placed within the
line of sight of the antenna will cause decreased perfor-
mance. Larger luggage items should be placed as far
forward as possible. Do not place items directly on or
above the antenna. Reception Quality
Satellite reception may be interrupted due to one of the
following reasons.
• The vehicle is parked in an underground parking
structure or under a physical obstacle.
• Dense tree coverage may interrupt reception.
• Driving under wide bridges or along tall buildings can
cause intermittent reception.
• Placing objects over or too close to the antenna can
cause signal blockage.
REMOTE SOUND SYSTEM CONTROLS — IF
EQUIPPED
The remote sound system controls are located on the rear
surface of the steering wheel. Reach behind the wheel to
access the switches.226 UNDERSTANDING YOUR INSTRUMENT PANEL

▫ Operating Precautions ..................263
▫ Cooling System Tips — Automatic Transmission 263

Engine Block Heater — If Equipped .........265

Diesel Exhaust Brake (Engine Braking) – If
Equipped ............................265

Automatic Transmission ..................266
▫ Automatic Transmission With Overdrive (5 Speed
545RFE) — If Equipped .................267
▫ Automatic Transmission (6 Speed AS68RC) — If
Equipped ...........................273

Manual Transmission ....................279
▫ Manual Transmission — 6 Speed (G56) ......280
▫ Recommended Vehicle Shift Speeds ........280
▫ Downshifting – Gas Engine ..............281 ▫ Downshifting – Diesel Engine ............282

Four-Wheel- Drive Operation — If Equipped . . . 283
▫ Manually Shifted Transfer Case Operating
Information/Precautions ................283
▫ Shifting Procedure - Manually Shifted Transfer
Case ..............................286
▫ Transfer Case Reminder Light ............287
▫ Electronically Shifted Transfer Case Operating
Information/Precautions (4 Position Switch)—If
Equipped ...........................288
▫ Shifting Procedure - Electronically Shifted Transfer
Case ..............................292

Limited-Slip Differential — If Equipped .......295

Power Take Off Operation – If Equipped ......296
▫ Stationary Mode ......................296244 STARTING AND OPERATING

▫ MobileMode ........................297

Driving On Slippery Surfaces ..............298

Driving Off-Road .......................298

Parking Brake .........................299

Brake System ..........................301
▫ Brake Noise .........................302
▫ Four-Wheel Anti-Lock Brake System ........302

Power Steering ........................304

Tire Safety Information ...................305
▫ Tire Markings ........................305
▫ Tire Identification Number (TIN) ..........308
▫ Tire Loading And Tire Pressure ...........310

Tires — General Information ...............314 ▫ Tire Pressure .........................314
▫ Tire Inflation Pressures .................315
▫ Radial-Ply Tires ......................317
▫ Compact Spare Tire — If Equipped .........318
▫ Limited Use Spare — If Equipped .........319
▫ Tire Spinning ........................319
▫ Tread Wear Indicators ..................320
▫ LifeOfTire .........................321
▫ Replacement Tires .....................321
▫ Alignment And Balance .................322

Supplemental Tire Pressure Information – If
Equipped ............................323

Tire Chains ...........................323 STARTING AND OPERATING 245
5

Snow Tires ...........................324

Tire Rotation Recommendations ............325
▫ Dual Rear Wheels .....................326

Engine Runaway .......................327

Fuel Requirements ......................327
▫ Fuel Requirements (Gas Engines) ..........327
▫ Fuel Requirements (6.7L Diesel Engines) .....331

Adding Fuel ..........................333
▫ Adding Fuel (Gas Engines) ..............333
▫ Adding Fuel (Diesel Engines) .............335

Vehicle Loading ........................338
▫ Certification Label .....................338

TrailerTowing .........................341 ▫ Common Towing Definitions .............341
▫ Trailer Hitch Classification ...............345
▫ Trailer Towing Weights (Maximum Trailer Weight
Ratings) ............................346
▫ Trailer And Tongue Weight ..............346
▫ Towing Requirements ..................347
▫ TowingTips .........................352
▫ Trailer Towing Mirrors — If Equipped ......354

Snowplow ............................355
▫ Before Plowing .......................356
▫ Snowplow Prep Package Model Availability . . 357
▫ Over The Road Operation With Snowplow
Attached ...........................358
▫ Methods For Removing Snow ............358246 STARTING AND OPERATING