Subaru Impreza Manuals 2017 Impreza Owner's Manual | Page 298

7-32 Starting and operating/ABS (Anti–lock Brake System) & Disc brake pad wear warning indicators ABS (Anti-lock Brake Sys- tem) The ABS prevents the lock-up of wheels which may occur during sudden braking or braking on slippery road surfaces. This helps prevent the loss of steering control and directional stability caused by wheel lock-up. When the ABS is operating, you may hear a chattering noise or feel a slight vibration in the brake pedal. This is normal when the ABS operates. The disc brake pad wear warning indica- tors on the disc brakes give a warning noise when the brake pads are worn. If a squeaking or scraping noise is heard from the disc brakes while braking, im- mediately have your vehicle checked by your SUBARU dealer. The ABS will not operate when the vehicle speed is below approximately 6 mph (10 km/h). WARNING Always use the utmost care in driving – overconfidence because you are driving a vehicle with the ABS could easily lead to a serious accident. CAUTION . The ABS does not always de- crease stopping distance. You should always maintain a safe following distance from other vehicles. . When driving on badly surfaced roads, gravel roads, icy roads, or over deep newly fallen snow, stopping distances may be long- er for a vehicle with the ABS than one without. When driving under these conditions, therefore, re- duce your speed and leave ample distance from other vehicles. . When tire chains are installed, stopping distances may be long- er for a vehicle with the ABS than one without. Be sure to reduce your speed and maintain a safe distance from the vehicle in front. . When you feel the ABS operating, you should maintain constant brake pedal pressure. Do not pump the brake pedal since doing so may defeat the opera- tion of the ABS.