Lane Departure Warning (LDW) Functions and Activation Conditions
Note: Lane departure warning is optional with Detroit Assurance 4.0.
The Detroit Assurance LDW system is designed to warn the driver as the vehicle crosses the outer boundary of the lane marking. This may differ from other LDW systems which issue a warning as the driver approaches the inside of the lane marking. If the system warns at, or just beyond the outer edge of the lane marking, the system is performing as designed. If the warning does not occur, or occurs after an excessive lane departure, the system may not be operating properly.
In addition to acting as a warning, lane markings on the driver display screen show the status of lane departure warning. No lane markings or outlined lane markings indicate that LDW is off. Solid white or red lane markings indicate LDW is active.
Lane departure warning only issues warnings if the speed is above approximately 37 mph (60 km/h).
When driving over lane markings unintentionally, the volume of audio equipment like the radio and/or hands-free systems is muted and a direction-related "rumble-strip noise" sounds from either the left or right door speaker.
Note: While the LDW audio alert is expected to sound through the radio speakers on any unit with a properly installed system, the LDW alert will only mute the radio output if the radio is both capable of supporting a mute feature and is properly configured.
Lane departure warning does not issue a warning if:
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the turn signals are switched on;
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there is braking or acceleration; or
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a driving safety system such as Active Brake Assist (ABA), Stability Control, or Adaptive Cruise Control (ACC) intervenes.