See also:

Low battery voltage
If the battery voltage is too low, the parking brake cannot be applied or released. Connect an auxiliary battery if the battery voltage is too low, see page 114. ...

Symbols and messages in the display
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Parking brake
1 Parking brake pedal 2 Handle for releasing the parking brake The parking brake pedal is located under the dashboard, to the left of the brake pedal. NOTE The indicator light will light up eve ...