2015 Jeep Grand Cherokee Owner Manual - Page 472
2015 Jeep Grand Cherokee Manual
Page 472 highlights
470 STARTING AND OPERATING Anti-Lock Brake System (ABS) The Anti-Lock Brake System (ABS) is designed to aid the driver in maintaining vehicle control under adverse braking conditions. The system operates with a separate computer to modulate hydraulic pressure to prevent wheel lock-up and help avoid skidding on slippery The Anti-Lock Brake System pump motor runs during surfaces. the self-test, and during an ABS stop, to provide the All vehicle wheels and tires must be the same size and regulated hydraulic pressure. The motor pump makes a type, and tires must be properly inflated to produce low humming noise during operation; this is normal. accurate signals for the computer. The Anti-Lock Brake System conducts a low speed selftest at about 12 mph (20 km/h). If for any reason your foot is on the brake when the vehicle reaches 12 mph (20 km/h), this check will be delayed until 25 mph (40 km/h). WARNING! • Pumping of the Anti-Lock Brakes will diminish their effectiveness and may lead to a collision. Pumping makes the stopping distance longer. Just press firmly on your brake pedal when you need to slow down or stop. (Continued) WARNING! Significant over or underinflation of tires, or mixing sizes of tires or wheels on the vehicle can lead to loss of braking effectiveness.
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