fuel consumption RAM CHASSIS CAB 2017 Owners Manual

Tire Pressure Monitoring Indicator Light
Yellow Telltale
Light What It Means
Tire Pressure Monitoring Indicator Light
The warning light switches on and a message is displayed to indicate that the tire pressure is
lower than the recommended value and/or that slow pressure loss is occurring. In these cases,
optimal tire duration and fuel consumption may not be guaranteed.
Should one or more tires be in the condition mentioned above, the display will show the indica-
tions corresponding to each tire in sequence.
CAUTION!Do not continue driving with one or more flat tires as
handling may be compromised. Stop the vehicle,
avoiding sharp braking and steering. Repair immedi-
ately using the dedicated tire repair kit and contact
your authorized dealership as soon as possible.
Each tire, including the spare (if provided), should be
checked monthly when cold and inflated to the inflation
pressure recommended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label. If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you
should determine the proper tire inflation pressure for
those tires.
As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System (TPMS)
that illuminates a low tire pressure telltale when one or
more of your tires is significantly under-inflated. Accord-
ingly, when the low tire pressure telltale illuminates, you
should stop and check your tires as soon as possible and
inflate them to the proper pressure. Driving on a signifi-
cantly under-inflated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability.208 UNDERSTANDING YOUR INSTRUMENT PANEL

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 psi kpa bar
Temperature °C °F
Power HP (US) HP (UK) kW
Torque lb-ft Nm 4UNDERSTANDING YOUR INSTRUMENT PANEL 239

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 psi kPa bar
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. 258 UNDERSTANDING YOUR INSTRUMENT PANEL

TIRES — GENERAL INFORMATION
Tire Pressure
Proper tire inflation pressure is essential to the safe and
satisfactory operation of your vehicle. Four primary areas
are affected by improper tire pressure:
• Safety and Vehicle Stability
• Economy
• Tread Wear
• Ride Comfort
Safety
WARNING!• Improperly inflated tires are dangerous and can
cause collisions.
• Underinflation increases tire flexing and can result
in overheating and tire failure.
• Overinflation reduces a tire’s ability to cushion
shock. Objects on the road and chuckholes can cause
damage that result in tire failure. (Continued) WARNING! (Continued)• Overinflated or underinflated tires can affect vehicle
handling and can fail suddenly, resulting in loss of
vehicle control.
• Unequal tire pressures can cause steering problems.
You could lose control of your vehicle.
• Unequal tire pressures from one side of the vehicle to
the other can cause the vehicle to drift to the right or left.
• Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Both under-inflation and over-inflation affect the stability
of the vehicle and can produce a feeling of sluggish
response or over responsiveness in the steering.
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.376 STARTING AND OPERATING