This light will illuminate when there is an automatic transmission fault.
See also:
Changing the battery
If required, replace the battery with a genuine spare part having the same specifications.
If a battery with different specifications is fitted, the service intervals given
in the “Service schedule ...
Main beams
The warning light on the dial turns on when the main beams are turned on. ...
“Dualdrive” electric power steering failure
Turning the ignition key to MAR the warning light on the dial turns on, but it
should go off after few seconds.
If the warning light stays on (on certain versions together with the message
on ...