Footbrake - Aston Martin DB 9 2010 Manual

To inform the driver that the
current gear has reached its
upper rev. limit the GSID will
show revs increasing (one bar,
two bars, three bars then three
bars flashing). To avoid hitting the
rev. limiter shift gear before or as the GSID reaches three flashing
bars.
For the first 1243 mile (2000 km) and when ever the engine
temperature is below 104°F (40°C) the shift control will show early
shift changes to protect the engine.
Maximum Engine Speed
The maximum safe engine speed is 7,000 rpm. If this speed is
exceeded, fuel supply to the engine is reduced. As the engine speed
reduces back to a safe level, fuel supply is progressively restored.
5.10

Footbrake

The footbrake operates through a vacuum boosted, dual (diagonal
split) circuit, hydraulic system incorporating an Anti-lock Brake
System (ABS).
Warning: In the event of a brake failure bring the vehicle to a
halt as soon as it is safe to do so. Do not continue to drive.
If vacuum boost fails or one circuit fails the footbrake will still
operate but with greater pedal pressure, increased pedal travel
and longer stopping distances.
After a long drive over salted or gritted roads or if driving in
heavy rain, through water or a vehicle wash, the braking action
may be delayed and increased braking pressure may be required.
Vacuum boost is only available while the engine is running.
Brake Warnings
Warning: If the brake warning symbol comes ON, you should
immediately be prepared for possible increased stopping
distances and possible partial failure of the braking system.
While driving, if the brake warning symbol
either that:
• The parking brake is not fully released
• The brake pads require regular maintenance
• The brake fluid level has fallen below an acceptable level
A warning message will show in the message centre (right).
comes ON, it shows