Maserati GranTurismo Coupe Owner's Manual page 54

18 – Voltmeter
It indicates the battery voltage and the
consequent normal operation of the
charging system. With the battery in
good condition, the engine off and the
starter key in MAR position, it is
located between 10V and 13V.
With the engine running the indicator
moves to values over 13V. The low
recharge warning light inside the
voltmeter indicates possible problems
3
in the recharging system.
When the starter key is turned to the
MAR position, the warning light
switches on, but it should switch off as
soon as the engine starts. Any delay in
its switching off with the engine idling
is not indicative of malfunctioning.
54 Instruments and indicators
19 – Fuel level gauge
The warning light inside the
instrument switches on to indicate that
there are about 5 US gallons (18 liters)
fuel left in the tank.