FOUR WHEEL DRIVE OPERATION
Quadra-Trac I Operating Instructions/Precautions
— If Equipped
The Quadra-Trac I is a single-speed (HI range only) trans- fer case, which provides convenient full-time four-wheel drive. No driver interaction is required. The Brake Traction Control (BTC) System, which combines standard ABS and Traction Control, provides resistance to any wheel that is
This transfer case is fully automatic in the 4WD HI mode.
When additional traction is required, the 4WD LOW position can be used to lock the front and rear driveshafts together and force the front and rear wheels to rotate at the same speed. The 4WD LOW position is intended for loose, slippery road surfaces only. Driving in the 4WD LOW position on dry, hard-surfaced roads may cause increased tire wear and damage to driveline components.
slipping to allow additional torque transfer to wheels with
When operating your vehicle in 4WD LOW, the engine 6
traction.
NOTE: The Quadra-Trac I system is not appropriate for conditions where 4WD LOW range is recommended. Refer to “Off-Road Driving Tips” in “Starting And Operating”
— If Equipped
The Quadra-Trac II transfer case is fully automatic in the normal driving 4WD AUTO mode. The Quadra-Trac II transfer case provides three mode positions:
speed is approximately three times that of the 4WD HI position at a given road speed. Take care not to overspeed the engine and do not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles depends on tires of equal size, type, and circumference on each wheel. Any difference will adversely affect shifting and cause damage to the transfer case.
Because four-wheel drive provides improved traction, there is a tendency to exceed safe turning and stopping speeds. Do not go faster than road conditions permit.
NEUTRAL
This range disengages the driveline from the powertrain. It is to be used for flat towing behind another vehicle. Refer to “Recreational Towing” in “Starting And Operating” for further information.
For additional information on the appropriate use of each 4WD system mode position, see the information below:
4WD AUTO
This range is used on surfaces such as ice, snow, gravel, sand, and dry hard pavement.
NOTE: Refer to “Selec-Terrain — If Equipped” further on in this section for further information on the various positions and their intended usages.
4WD LOW
This range is for low speed four-wheel drive. It provides an additional gear reduction which allows for increased torque to be delivered to both the front and rear wheels while providing maximum pulling power for loose, slip- pery road surfaces only. Do not exceed 25 mph (40 km/h).
NOTE: Refer to “Selec-Terrain — If Equipped” for further information on the various positions and their intended usages.
4WD HI To 4WD LOW
With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h), the ignition switch in the ON position or the engine running,
NOTE: If shift conditions/interlocks are not met, or a transfer case motor temperature protection condition ex- ists, a “For 4x4 Low Slow Below 3 mph (5 km/h) Put Trans in “N” Press 4 Low” message will flash from the instru- ment cluster display. Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” for further information.
4WD LOW To 4WD HI
shift the transmission into “N”, and push the “4WD LOW”
With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h), the 6
button once on the transfer case switch. The “4WD LOW” indicator light in the instrument cluster will begin to flash and remain on solid when the shift is complete.
Transfer Case Switch
ignition switch in the ON position or the engine running, shift the transmission into NEUTRAL, and push the “4WD LOW” button once on the transfer case switch. The “4WD LOW” indicator light in the instrument cluster will flash and go out when the shift is complete.
NOTE:
If shift conditions/interlocks are not met, or a transfer case motor temperature protection condition exists, a “For 4x4 High Slow Below 3 mph (5 km/h) Put Trans in N push 4 Low” message will flash from the instrument cluster display. Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” for further information.
Shifting into or out of 4WD LOW is possible with the vehicle completely stopped; however, difficulty may occur due to the mating clutch teeth not being properly aligned. Several attempts may be required for clutch teeth alignment and shift completion to occur. The preferred method is with the vehicle rolling 0 to 3 mph (0 to 5 km/h). If the vehicle is moving faster than 3 mph (5 km/h), the transfer case will not allow the shift.
Shifting Into NEUTRAL (N)
information. push and hold the ENGINE START/STOP button until 6
NEUTRAL (N) Switch
6. After the shift is completed and the NEUTRAL (N) light stays on, release the NEUTRAL (N) button.
the engine turns off.
NOTE: If shift conditions/interlocks are not met, a “To Tow Vehicle Safely, Read Neutral Shift Procedure in Own- er’s Manual” message will flash from the instrument cluster display. Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” for further information.
Shifting Out Of NEUTRAL (N)
Use the following procedure to prepare your vehicle for normal usage.
NEUTRAL (N) Switch
The optional Quadra-Drive II System features two torque transfer couplings. The couplings include an Electronic Limited-Slip Differential (ELSD) rear axle and the Quadra- Trac II transfer case. The optional ELSD axle is fully automatic and requires no driver input to operate. Under normal driving conditions, the unit functions as a standard axle, balancing torque evenly between left and right wheels. With a traction difference between left and right wheels, the coupling will sense a speed difference. As one wheel begins to spin faster than the other, torque will automatically transfer from the wheel that has less traction, to the wheel that has traction. While the transfer case and axle coupling differ in design, their operation is similar. Follow the Quadra-Trac II transfer case shifting informa- tion, preceding this section, for shifting this system.
Download Manual