2017 Ram 3500 Chassis Cab fuel cap

3. Speedometer•Indicates vehicle speed.
4. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the ignition is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel door is located.
5. Temperature Gauge
•The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
• The gauge pointer will likely indicate a higher tem-
perature when driving in hot weather, up mountain
grades, or when towing a trailer. It should not be
allowed to exceed the upper limits of the normal
operating range.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle.” 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.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 197

NOTE:The voltmeter may show a gauge fluctuation at
various engine temperatures. This cycling operation is
caused by the post-heat cycle of the intake manifold heater
system. The number of cycles and the length of the cycling
operation is controlled by the engine control module.
Post-heat operation can run for several minutes, and then
the electrical system and voltmeter needle will stabilize.
3. Oil Pressure Gauge
•The pointer should always indicate some oil pressure
when the engine is running. A continuous high or low
reading under normal driving conditions may indicate
a lubrication system malfunction. Immediate service
should be obtained from an authorized dealer.
4. Speedometer •Indicates vehicle speed.
5. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the ignition is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel door is located.
6. Instrument Cluster Display
•When the appropriate conditions exist, this display
shows the instrument cluster display messages. Refer
to “Instrument Cluster Display” in “Understanding
Your Instrument Panel” for further information.
7. Temperature Gauge •The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
• The gauge pointer will likely indicate a higher tem-
perature when driving in hot weather, up mountain
grades, or when towing a trailer. It should not be
allowed to exceed the upper limits of the normal
operating range.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle.” Follow the warnings under the Cooling System
Pressure Cap paragraph.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 199

Yellow Telltale Indicator Lights
Engine Check/Malfunction Indicator Light (MIL)
Yellow TelltaleLight What It Means
Engine Check/Malfunction Indicator Light (MIL)
The Engine Check/Malfunction Indicator Light (MIL) is a part of an Onboard Diagnostic System
called OBD II that monitors engine and automatic transmission control systems. The light will
illuminate when the ignition is in the ON/RUN position before engine start. If the bulb does not
come on when turning the key from OFF to ON/RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas cap, poor quality fuel, etc., may illuminate the
light after engine start. The vehicle should be serviced if the light stays on through several typical
driving styles. In most situations, the vehicle will drive normally and will not require towing.
When the engine is running, the MIL may flash to alert serious conditions that could lead to im-
mediate loss of power or severe catalytic converter damage. The vehicle should be serviced as
soon as possible if this occurs.
208 UNDERSTANDING YOUR INSTRUMENT PANEL

Loose Fuel Filler Cap Indicator Light — If Equipped
Yellow TelltaleLight What It Means
Loose Fuel Filler Cap Indicator Light — If Equipped
This light will illuminate when the fuel filler cap is loose. Properly close the filler cap to disen-
gage the light. If the light does not turn off, please see your authorized dealer.
Service 4WD Indicator Light — If Equipped
Yellow Telltale
Light What It Means
Service 4WD Indicator Light
If the light stays on or comes on during driving, it means that the 4WD system is not functioning
properly and that service is required. We recommend you drive to the nearest service center and
have the vehicle serviced immediately.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 217

Display
After pressing the “Display” button on the touchscreen, the following settings will be available:
Setting NameSelectable Options
Display Mode AutoManual
Set Language English, Français, Español
NOTE:
If Arabic is selected as the vehicle language, the voice recognition and text messaging features will not function. Touchscreen Beep OnOff
Units
After pressing the “Units” button on the touchscreen, you may select each unit of measure independently displayed in the
Instrument Cluster Display, and navigation system (if equipped). The following selectable units of measure are listed below:
Setting Name Selectable Options
Speed MPH km/h
Distance mi km
Fuel Consumption MPG (US)MPG (UK) L/100 km km/L
Capacity gal (US)gal (UK)L/100 km L
Pressure psikpabar
Temperature °C °F
Power HP (US) HP (UK) kW
Torque lb-ft Nm
4
UNDERSTANDING YOUR INSTRUMENT PANEL 243

Units
After pressing the “Units” button on the touchscreen you may select each unit of measure independently displayed in the
Instrument Cluster Display, and navigation system (if equipped). The following selectable units of measure are listed
below:
Setting NameSelectable Options
Speed MPH km/h
Distance mi km
Fuel Consumption MPG (US)MPG (UK) L/100 km km/L
Capacity gal (US)gal (UK)L/100 km L
Pressure psikPabar
Temperature °C °F
Power HP (US) HP (UK)kW
Torque lb-ft Nm
After the desired setting has been selected, press the back
arrow/Done button on the touchscreen to return to the
previous menu.
262 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Life Of Tire .......................... .389
▫ Replacement Tires ..................... .389
 TIRE CHAINS (TRACTION DEVICES) .........390
 TIRE ROTATION RECOMMENDATIONS ......392
▫ Dual Rear Wheels ..................... .393
 DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ..................394
▫ Treadwear ........................... .394
▫ Traction Grades ....................... .394
▫ Temperature Grades .....................395
 TIRE PRESSURE MONITOR SYSTEM (TPMS) . . .395
▫ Base System — If Equipped ...............397
▫ Premium System ...................... .398
▫ Tire Pressure Information System (TPIS) Chassis
Cab — If Equipped .....................400
▫ General Information .....................402
 FUEL REQUIREMENTS ...................402
▫ 6.4L Engine .......................... .402▫
Reformulated Gasoline ..................402
▫ Gasoline/Oxygenate Blends ...............403
▫ E-85 Usage In Non-Flex Fuel Vehicles .........403
▫ CNG And LP Fuel System Modifications ......403
▫ MMT In Gasoline ...................... .404
▫ Materials Added To Fuel .................404
▫ Fuel System Cautions ....................405
▫ Carbon Monoxide Warnings ...............405
 ADDING FUEL ........................ .406
▫ Loose Fuel Filler Cap Message .............407
 VEHICLE

LOADING .....................407
▫ Certification Label ..................... .407
 TRAILER TOWING ..................... .409
▫ Common Towing Definitions ...............409
▫ Trailer Hitch Classification ................412
▫ Trailer Towing Weights (Maximum Trailer Weight
Ratings) ............................ .413
5
STARTING AND OPERATING 323

NOTE:
•Unequal tire pressures from side to side may cause
erratic and unpredictable steering response.
• Unequal tire pressure from side to side may cause the
vehicle to drift left or right.
Fuel Economy
Underinflated tires will increase tire rolling resistance
resulting in higher fuel consumption.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the
driver’s side B-Pillar or rear edge of the driver’s side door.
At least once a month:
• Check and adjust tire pressure with a good quality
pocket-type pressure gauge. Do not make a visual
judgement when determining proper inflation. Tires
may look properly inflated even when they are under-
inflated. •
Inspect tires for signs of tire wear or visible damage.
CAUTION!
After inspecting or adjusting the tire pressure, always
reinstall the valve stem cap. This will prevent moisture
and dirt from entering the valve stem, which could
damage the valve stem.
Inflation pressures specified on the placard are always
“cold tire inflation pressure”. Cold tire inflation pressure is
defined as the tire pressure after the vehicle has not been
driven for at least three hours, or driven less than 1 mile
(1.6 km) after sitting for a minimum of three hours. The
cold tire inflation pressure must not exceed the maximum
inflation pressure molded into the tire sidewall.
Check tire pressures more often if subject to a wide range
of outdoor temperatures, as tire pressures vary with tem-
perature changes.
Tire pressures change by approximately 1 psi (7 kPa) per
12°F (7°C) of air temperature change. Keep this in mind
when checking tire pressure inside a garage, especially in
the Winter.
382 STARTING AND OPERATING