Functions and Activation Conditions for Lane Departure Warning

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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.

Lane departure warning only issues warnings if the speed is above approximately 37 mph (60 km/h).

The lane markings on the driver display screen show the status and state of LDW:

  • No lane markings indicate that LDW is off.

  • Outlined lane markings indicate that LDW is not ready.

  • Solid white markings indicate LDW is on and ready to issue warnings.

  • Red lane markings indicate a lane departure is occurring; red lane markings are a visual warning from the LDW system.

In addition to the visual warning, when driving over lane markings unintentionally, the volume of audio equipment like the radio and/or hands-free systems is muted and a "rumble-strip noise" emits from the side of the vehicle driving over the lane markings.

LDW does not issue an audible warning when:

  • the turn signals are switched on

  • if the driver is braking or accelerating

  • if the driver is making a sharp turn

  • if a driving safety system such as ABA, stability control, or ACC intervenes.

Note:
Parent topic: Detroit Assurance Lane Departure Warning (LDW)
Document Number: 0000088014
Manual Publication Date: 2024-03-21
Topic Publication Date: 2025-02-13