odometer Ram 4500 Chassis Cab 2018 Owner's Manual

Dimmer Control
The brightness of the instrument panel as well as the
ambient lighting can be regulated by rotating the dimmer
control to the right (brighter) or to the left (dimmer).
“Party Mode”
When a door is open and the interior lights are on, rotating
the dimmer control all the way left, to the off detent, will
cause all the interior lights to go out. This is also known as
theParty mode because it allows the doors to stay open
for extended periods of time without discharging the
vehicle’s battery. “Parade Mode”
When the headlights are on you can supplement the
brightness of the odometer, trip odometer, radio and
overhead console by rotating the control to the right until
you hear a click. This feature is termed the “Parade” mode
and is useful when headlights are required during the day.
NOTE:
If your vehicle is equipped with a touchscreen, the
dimming of the touchscreen is programmable through the
Uconnect system. Refer to “Uconnect Settings” in “Multi-
media” for further details.
Illuminated Approach
The courtesy lights will turn on when you use the key fob
to unlock the doors or open any door.
This feature also turns on the approach lighting in the
outside mirrors (if equipped). Refer to “Mirrors” in “Get-
ting To Know Your Vehicle” for further information.
The lights will fade to off after approximately 30 seconds,
or they will immediately fade to off once the ignition
switch is turned to ON/RUN from the OFF position.
Dimmer Control
78 GETTING TO KNOW YOUR VEHICLE

WARNING!(Continued)
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Servicing And Mainte-
nance.” Follow the warnings under the Cooling System
Pressure Cap paragraph.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H,”
pull over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H,” turn the engine off immediately and call an
authorized dealer for service.
INSTRUMENT CLUSTER DISPLAY
Your vehicle may be equipped with an instrument cluster
display, which offers useful information to the driver. With
the ignition in the STOP/OFF mode, opening/closing of a
door will activate the display for viewing, and display the
total miles, or kilometers, in the odometer. Your instrument
cluster display is designed to display important informa-
tion about your vehicle’s systems and features. Using a
driver interactive display located on the instrument panel,
your instrument cluster display can show you how sys-
tems are working and give you warnings when they are
not. The steering wheel mounted controls allow you to
scroll through the main menus and submenus. You can
access the specific information you want and make selec-
tions and adjustments.
134 GETTING TO KNOW YOUR INSTRUMENT PANEL

WARNING!(Continued)
•Never use a tire with a smaller load index or capacity,
other than what was originally equipped on your
vehicle. Using a tire with a smaller load index could
result in tire overloading and failure. You could lose
control and have a collision.
• Failure to equip your vehicle with tires having ad-
equate speed capability can result in sudden tire
failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings.
Tire Types
All Season Tires — If Equipped
All Season tires provide traction for all seasons (Spring,
Summer, Fall, and Winter). Traction levels may vary between
different all season tires. All season tires can be identified by
the M+S, M&S, M/S or MS designation on the tire sidewall.
Use all season tires only in sets of four; failure to do so may
adversely affect the safety and handling of your vehicle.
Summer Or Three Season Tires — If Equipped
Summer tires provide traction in both wet and dry condi-
tions, and are not intended to be driven in snow or on ice.
If your vehicle is equipped with Summer tires, be aware
these tires are not designed for Winter or cold driving
conditions. Install Winter tires on your vehicle when am-
bient temperatures are less than 40°F (5°C) or if roads are
covered with ice or snow. For more information, contact an
authorized dealer.
Summer tires do not contain the all season designation or
mountain/snowflake symbol on the tire sidewall. Use
Summer tires only in sets of four; failure to do so may
adversely affect the safety and handling of your vehicle.
WARNING!
Do not use Summer tires in snow/ice conditions. You
could lose vehicle control, resulting in severe injury or
death. Driving too fast for conditions also creates the
possibility of loss of vehicle control.
410 SERVICING AND MAINTENANCE