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August 24, 2017 Service bulletin

Some customers may notice that the Lane Departure Warning System (LDWS) and High Beam Control (HBC)...

Mazda technical service bulletin 15-003-17-3284a for 2016 Mazda CX-5, 2016-2017 Mazda MAZDA6 and 2016-2017 Mazda CX-3.

Bulletin number
15-003-17-3284a
Component
Lane departure
Summary
Some customers may notice that the Lane Departure Warning System (LDWS) and High Beam Control (HBC) (amber) warning lights are on when they start driving around dusk or dawn under low temperatures. At that time, the windshield is clear but the lens of the Forward Sensing Camera (FSC) is foggy. The FSC may not function properly under the following conditions: ? Foggy windshield ? Foggy FSC lens ? Heavy rain, dense fog, snow and direct sun light ? No or poor lane markings. When the FSC control system detects the foggy lens of the camera, the system deactivates LDWS and HBC functions.

Owners of these vehicles have filed 25 complaints in the driver assistance category.

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