Ambient Temperature; Tyre Pressure Monitoring - Aston Martin DB 9 2013 Manual

Cruise Control Automatic OFF
Cruise control will automatically set to OFF and clear the memory
when:
• The ignition is set to OFF.
• A fault occurs. The cruise control system will set to OFF and
cannot be used until the fault is cleared.
• The park brake is applied.
• Maximum vehicle speed is reached.
Cruise control will automatically set to OFF but the set speed will stay
in the memory when:
• The CAN button is pressed.
• The brake pedal is pressed.
• Vehicle speed falls below 30 km/h.
• Neutral, Park or Reverse gear positions are selected.
• The difference between the actual and set speed is too great.
• When the set speed is above 144 km/h; cruise control will
disengage automatically after approximately 20 minutes.
• The accelerator pedal is used to accelerate beyond the set speed
for too long a period.

Ambient Temperature

The ambient temperature (outside temperature) is shown in the top
right corner of the Infotainment center display.
If the vehicle has been travelling and then is stopped in a shaded
or enclosed area the ambient temperature may rise, this is due to the
heat from the engine bay. The ambient temperature display will show
the true ambient temperature once the vehicle is moving again or the
engine bay cools down.
If required the display units can be changed from °C to °F or °F to
°C (Refer to 'Climate Controls', page 6.2).

Tyre Pressure Monitoring

Warning: Driving on a significantly under-inflated tyre causes
the tyre to overheat and can lead to tyre failure. Under-inflation
also reduces fuel efficiency and tyre tread life, and may affect the
vehicle's handling and stopping ability.
Each tyre should be checked monthly when cold, in the ambient air
temperature that the vehicle is normally driven. Setting tyre pressures
in a warm garage and then driving in a very low ambient may result
in a low tyre pressure warning. Set the correct pressure
recommended by the vehicle manufacturer on the vehicle placard or
tyre inflation pressure label (if your vehicle has tyres of a different size
than the size shown on the vehicle placard or tyre inflation pressure
label, you should make sure of the correct tyre pressure for those
tyres).
As an added safety feature, your vehicle has been equipped with a
Tyre Pressure Monitoring System (TPMS) that sets a tyre pressure
telltale (warning) symbol to ON (A) when one or more of the tyres is
significantly under or over inflated. At the same time an image of
vehicle in the message center (right) will show which tyre(s) have low
or high air pressure and the current tyre pressure. When the tyre
pressure telltale comes ON, stop and check your tyres as soon as
possible, and inflate or deflate them to the correct pressure.
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