Lane Departure Warning Controls
The Lane Guidance lane departure warning system monitors the vehicle's position within the roadway lane markings and sounds a warning in the cab when the vehicle is about to stray outside its lane, provided the turn signal is not on and the vehicle is traveling at least 37 mph (60 km/h). The system includes a digital camera mounted high near the center of the windshield inside the cab and speakers that emit a sound similar to a rumble strip. The sound is made on the side of the vehicle it's straying toward, prompting the driver to respond and steer away from the sound and back into the center of the correct lane.
Warning: The lane departure warning system is intended only as an aid for a conscientious and alert driver. The system may not indicate lane departures under certain conditions. Read the information in this manual to understand the circumstances under which this system may not provide adequate lane departure warnings. Do not rely solely on the system to safely operate the vehicle. The system does not warn of all possible hazards. For example, the system cannot prevent an accident if the driver is impaired or not driving safely.
The lane departure warning system is not a substitute for safe driving procedures.
Failure to drive safely and use the system properly could result in personal injury and/or death and severe property damage.
The lane departure warning system powers up each time the ignition is turned to ON. The system conducts a self test, and initiates test tones from the left speaker and then the right speaker. Once the vehicle is started and the system is ready, the LED in the switch illuminates.
Press the LANE ALERT switch to temporarily disable the lane departure warning system. Some vehicles are equipped with a timer that automatically re-enables the warning system after 15 minutes. On all other vehicles, the warning system will remain disabled until the driver enables the system by pressing the LANE ALERT switch again, or the ignition is cycled off and then on.
When the vehicle approaches the lane markings on either side, the system sense the activation of a turn signal. If a turn signal has not been activated, the system initiates the audible warning to alert the driver that the vehicle is departing its current lane of travel.
The LANE SRCHNG warning light illuminates to indicate the system is not fully functional. When the warning light is on, the system audible alert may not indicate a lane departure. Conditions that can cause the warning light to illuminate include:
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The system is unable to detect lane markings.
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Vehicle speed is less than 37 mph (60 km/h).
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A system problem is detected.