2008 Chrysler Crossfire Owner Manual - Page 195

STARTING AND OPERATING 193 The ABS prevents the wheels from locking up above a vehicle speed of approximately 5 mph (8 km/h) independent of road surface conditions. At the instant one of the wheels is about to lock up, a slight pulsation can be felt in the brake pedal, indicating that the ABS is in the regulating mode. Keep firm and steady pressure on the brake pedal while experiencing the pulsation. Continuous, steady brake pedal pressure results in optimal braking power while maintaining the ability to steer the vehicle. In the case of an emergency brake maneuver, keep continuous full pressure on the brake pedal. In this manner only can the ABS be most effective. On slippery road surfaces, the ABS will respond even with light brake pedal pressure because of the increased likelihood of locking wheels. The pulsating brake pedal can be an indication of hazardous road conditions and functions as a reminder to take extra care while driving. WARNING! Significant over- or under-inflation of tires, or mixing sizes of front or rear tires or wheels on the vehicle can reduce braking effectiveness. Maintain proper tire pressure and always use the tires and wheels specified in this manual for your vehicle. The anti-lock brake system conducts a low-speed self-test at about 12 mph (20 km/h). If you have your foot lightly on the brake while this test is occurring, you may feel slight pedal movement. The movement can be more apparent on ice and snow. The anti-lock brake system pump motor makes a low humming noise during operation, which is normal. 5