ErnestBruce 
2018 Toyota Avalon Sedan Limited 4dr Sedan (3.5L 6cyl 6A)
Toyota must have super ears
 I traded in a Buick with Lane Departure Alert and loved that feature.  I made sure that my new 2018 Avalon hybrid had LDA but I did not road test it.  I took my first trip in my new Toyota and was dismayed to discover that the volume on the LDA buzzer was so low as to render it useless.  The buzzer volume on the Buick was adjustable but is not adjustable on the Toyota.  I would not have purchased this vehicle had I known of this major safety shortcoming