Jeep Liberty: Anti-Lock Brake System
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 surfaces.
All vehicle wheels and tires must be the same size and type, and tires must be properly inflated, to produce accurate signals for the computer.
Significant over or under-inflation of tires or mixing sizes of tires or wheels on the vehicle can lead to loss of braking effectiveness.
The ABS 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. This is normal.
The ABS pump motor runs during the self-test at 12 mph (20 km/h) and during an ABS stop. The pump motor makes a low humming noise during operation, which is normal.
вЂў 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.
вЂў The ABS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded.
вЂў The ABS cannot prevent collisions, including those resulting from excessive speed in turns, following another vehicle too closely, or hydroplaning.
вЂў The capabilities of an ABS equipped vehicle must never be exploited in a reckless or dangerous manner, which could jeopardize the userвЂ™s safety or the safety of others.
The ABS is subject to possible detrimental effects of electronic interference caused by improperly installed aftermarket radios or telephones.
NOTE: During severe braking conditions, a pulsing sensation may occur and a clicking noise will be heard.
This is normal, indicating that the ABS is functioning.
вЂў Do not вЂњrideвЂќ the brakes by resting your foot on the pedal. This could overheat the brakes and result in unpredictable braking action, longer stopping distances, or brake damage.
вЂў When descending mountains or hills, repeated braking can cause brake fade with loss of braking control.
Avoid repeated heavy braking by downshifting the transmission or locking out overdrive whenever possible.
вЂў Engines may idle at higher speeds during warm-up, which could cause rear wheels to spin and result in loss of vehicle control. Be especially careful while driving on slippery roads, in close-quarter maneuvering, parking, or stopping.
вЂў Do not drive too fast for road conditions, especially when roads are wet or slushy. A wedge of water can build up between the tire tread and the road. This hydroplaning action can cause loss of traction, braking ability, and control.
вЂў After going through deep water or a car wash, brakes may become wet, resulting in decreased performance and unpredictable braking action. Dry the brakes by gentle, intermittent pedal action while driving at very slow speeds.
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