2017 Alfa Romeo 4C Spider fuel consumption

Yellow Telltale Indicator Lights
Tire Pressure Monitoring Indicator Light
Yellow TelltaleLight 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
indications corresponding to each tire in sequence.
IMPORTANT: Do not continue driving with one or
more flat tires as handling may be compromised. Stop
the vehicle, avoiding sharp braking and steering. Repair
immediately 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 pres-
sure label, you should determine the proper tire infla-
tion 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. Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires as
soon as possible and inflate them to the proper pres-
sure. Driving on a significantly 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.
106 UNDERSTANDING YOUR INSTRUMENT PANEL

•A short button push displays the different values.
• A long button push resets the system and then starts
a new trip.
Trip Functions
Both trip functions are resettable (reset — start of new
trip).
“Trip A” can be used to display the figures relating to:
•Range
• Average Fuel Consumption •
Travel Distance
• Current Fuel Consumption
• Average Speed
• Travel Time
“Trip B” can be used to display the figures relating to:
• Average Fuel Consumption
• Travel Distance
• Average Speed
• Travel Time
“Current Trip” can be used to display the figures
relating to:
NOTE: “Trip B” functions may be excluded (see “Trip
B Data”). “Range” and “Instantaneous Fuel Consump-
tion” cannot be reset.
New Trip
To reset:
• Push and hold the TRIPbutton to reset the system
manually.
Trip Button
126 UNDERSTANDING YOUR INSTRUMENT PANEL

Range
This indicates the distance which may be traveled with
the fuel remaining in the tank, assuming that driving
conditions will not change. The message “----” will
appear on the display in the following cases:
•Distance less than 30 miles (or 50 km).
• The vehicle is parked for a long time with the engine
running.
NOTE: The range depends on several factors: driving
style, type of route (freeway, residential, mountain
roads, etc.), conditions of use of the vehicle (load, tire
pressure, etc.). Trip planning must take into account the
above notes.
Average Fuel Consumption
This value shows the approximate average consump-
tion since the last reset.
Travel Distance
This value shows the distance covered since the last
reset.
Current Fuel Consumption
This indicates the fuel consumption. The value is con-
stantly updated. The message “----” will appear on the
display if the vehicle is parked with the engine running.
Average Speed
This value shows the vehicle’s average speed as a
function of the overall time elapsed since the last reset.
Travel Time
This value shows the time elapsed since the last reset.
Tire Pressure Values
This screen will display OK at each Tire Pressure
Monitoring sensor. Refer to “Tire Pressure Monitoring
System” in “Starting And Operating.”
128 UNDERSTANDING YOUR INSTRUMENT PANEL

Fuel Economy
Underinflated tires will increase tire rolling resistance
resulting in higher fuel consumption.
Tread Wear
Improper cold tire inflation pressures can cause abnor-
mal wear patterns and reduced tread life, resulting in
the need for earlier tire replacement.
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 pre-
vent 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 pres-
sure 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 temperature 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.
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