Power brakes function only when the engine is running
The power brakes utilize vacuum pressure which is only created when the engine is running. Never let the vehicle roll to a stop with the engine switched off.
If the power brakes are not working, considerably higher pressure will be required on the brake pedal to compensate for the lack of power assistance. This can happen for example when towing your vehicle or if the engine is switched off when the vehicle is rolling. The brake pedal feels harder than usual.
See also:
Disabling the passenger's side front airbag
Occupant Weight Sensor (OWS) indicator light
Volvo recommends that ALL occupants (adults and children) shorter than 4 feet
7 inches (140 cm) be seated in the back seat of any vehicle with a front ...
Brake lights
The brake lights come on automatically when the brakes are applied.
Adaptive brake lights
The adaptive brake lights activate in the event of sudden braking or if the ABS
system is activated. This ...
Introduction
City Safety™1 is a support system designed to help the driver avoid low speed
collisions when driving in slow-moving, stop-and-go traffic.
City Safety™ is not active if your vehicle’s speed is belo ...