2011 Volvo S80 Owner's Manual - Page 116

03 Your driving environment Brakes Anti-lock braking system The Anti-lock Braking System (ABS) helps to improve vehicle control (stopping and steering) during severe braking conditions by limiting brake lockup. When the system "senses" impending lockup, braking pressure is automatically modulated in order to help prevent lockup that could lead to a skid. The system performs a brief self-diagnostic test when the engine has been started and driver releases the brake pedal. Another automatic test may be performed when the vehicle first reaches a speed of approximately 25 mph (40 km/h). The brake pedal will pulsate several times and a sound may be audible from the ABS control module. This is normal. ing. The system is activated by the speed with which the brake pedal is depressed. When the EBA system is activated, the brake pedal will go down and pressure in the brake system immediately increases to the maximum level. Maintain full pressure on the brake pedal in order to utilize the system completely. EBA is automatically deactivated when the brake pedal is released. Symbols in the instrument panel Symbol Specification Steady glow - Check the brake fluid level. If the level is low, fill with brake fluid and check for the cause of the brake fluid loss. Steady glow for two seconds when the engine is started - There was a fault in the brake system's ABS function when the engine was last running. 03 NOTE • Cleaning the brake discs Coatings of dirt and water on the brake discs may result in delayed brake function. This delay is minimized by cleaning the brake linings. Cleaning the brake pads is advisable in wet weather, prior to long-term parking, and after the vehicle has been washed. Do this by braking gently for a short period while the vehicle is moving. When the EBA system is activated, the brake pedal will go down and pressure in the brake system immediately increases to the maximum level. You must maintain full pressure on the brake pedal in order to utilize the system completely. There will be no braking effect if the pedal is released. EBA is automatically deactivated when the brake pedal is released. When the vehicle has been parked for some time, the brake pedal may sink more than usual when the engine is started. This is normal and the pedal will return to its usual position when it is released. WARNING If and come on at the same time and the brake level is below the MIN mark in the reservoir or if a brake system-related message is shown in the information display: DO NOT DRIVE. Have the vehicle towed to a trained and qualified Volvo service technician and have the brake system inspected. • Emergency Brake Assistance EBA is designed to provide full brake effect immediately in the event of sudden, hard brak- 116