ACTIVE BRAKE LIMITED SLIP (ABLS) SYSTEM
• The ABLS system uses automatic brak- ing to transfer power from a slipping drive wheel to the wheel on the same axle with more traction. The ABLS system applies braking to the slipping wheel, which helps redirect power to the other wheel.
• On 4–Wheel Drive models the ABLS sys- tem operates in both 4H and 4LO modes. If 4WD mode is engaged, the ABLS sys- tem operates for both drive axles. On 2–Wheel Drive vehicles, the ABLS system operates on the drive axle only.
• The ABLS system is always on. In some conditions, the system may automati- cally turn the ABLS system off. If the sys- tem is automatically turned off, normal brake function will continue. ABLS will function even when the Vehicle Dynamic Control system is turned off.
• The ABLS does not operate if both wheels on a drive axle are slipping.
WARNING
• The ABLS system helps provide increased traction, but will not prevent accidents due to abrupt steering op- eration or by careless driving or dan- gerous driving practices. Reduce ve- hicle speed and be especially careful when driving and cornering on slip- pery surfaces. Always drive carefully.
•Do not modify the vehicle’s suspen- sion. If suspension parts such as shock absorbers, struts, springs, sta- bilizer bars, bushings and wheels are not NISSAN approved for your vehicle or are extremely deteriorated, the ABLS system may not operate prop- erly. This could adversely affect ve- hicle handling performance, and the slip indicator light may illuminate.
•If brake related parts such as brake pads, rotors and calipers are not NISSAN recommended or are ex- tremely deteriorated, the ABLS system may not operate properly and the slip indicator light may illuminate.
•If wheels or tires other than the NISSAN recommended ones are used, the ABLS system may not oper- ate properly and the slip indicator light may illuminate.
The VDC system uses various sensors to monitor driver inputs and vehicle motion. Under certain driving conditions, the VDC system helps to perform the following functions: • Controls brake pressure to reduce wheel
slip on one slipping drive wheel so power is transferred to a non-slipping drive wheel on the same axle.
• Controls brake pressure and engine out- put to reduce drive wheel slip based on vehicle speed (traction control function).
• If the 4WD transfer case is shifted into 4LO the indicator light will come on and the VDC system will be turned off. For additional information, see “Using 4–Wheel Drive (4WD)” (P. 5-111).
• Controls brake pressure at individual wheels and engine output to help the driver maintain control of the vehicle in the following conditions: – Understeer (vehicle tends to not follow
the steered path despite increased steering input)
– Oversteer (vehicle tends to spin due to certain road or driving conditions)
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