Driving Techniques - Aston Martin DB9 2009 Owner's Manual

The parking switch LED will illuminate when the system is
turned ON. The LED will blink if a fault is detected in the
system.
In heavy rain or similar adverse conditions, the rear
parking assist sensors may not always be able to
accurately measure distance to close objects. A fully laden
vehicle or irregular obstacles may also cause inaccurate
measurements.
If the system has a fault, when engaging reverse gear or
switching the ignition ON, then a single three second tone
will be heard (only once per ignition cycle) and the parking
assist switch LED will blink. The system is automatically
disabled when a fault is detected.
Parking assist may sound spurious tones if it detects an
ultrasonic frequency using the same band as the sensors.
If an obstacle is detected at the front or rear of the vehicle, a
series of beeps will be heard from the front or rear speaker
respectively, which increases in rate as the vehicle nears the
obstacle.
The system consists of inner and outer sensors.
When maneuvering forward into a Garage, etc., the front
outer sensors will cease detection if they detect a stationary
or receding object for three seconds or more, this allows
detection directly at the front of the vehicle in this type of
manoeuvre.
The beep becomes a continuous tone when an obstacle is
detected at or within approximately 12 inch (300 mm) from
the rear or 10 inch (250 mm) from the front of the vehicle.

Driving Techniques

Procedures for driving this vehicle may be unfamiliar to
many new owners. Please take time to safely acquire the
necessary new driving skills. Practise in safe, lower speed
conditions before investigating the high performance
potential of the vehicle. Please ensure a safe and enjoyable
entry into this new phase of Aston Martin motoring.
Performance Driving Courses are available to enable
customers not only to understand the control functions of
their vehicle but also the basic principles of Performance
Driving.
Contact your Aston Martin Dealer for further information.
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