2009 Dodge Challenger Owner's Manual - Page 280

278 STARTING AND OPERATING When the vehicle is driven over 7 mph (11 km/h), you • A slight drop or fall away of the brake pedal at the end may also hear a slight clicking sound as well as some of the stop. related motor noises. These noises are the system perThese are all normal characteristics of ABS. forming its self check cycle to ensure that the ABS system is working properly. This self check occurs each time the WARNING! vehicle is started and accelerated past 7 mph (11 km/h). • The Anti-Lock Brake System (ABS) contains soABS is activated during braking under certain road or phisticated electronic equipment that may be susstopping conditions. ABS-inducing conditions can inceptible to interference caused by improperly include ice, snow, gravel, bumps, railroad tracks, loose stalled or high output radio transmitting debris, or panic stops. equipment. This interference can cause possible You also may experience the following when the brake loss of anti-lock braking capability. Installation of system goes into anti-lock: such equipment should be performed by qualified professionals. • The ABS motor running (it may continue to run for a (Continued) short time after the stop), • The clicking sound of solenoid valves, • Brake pedal pulsations, and