I've started to notice a slight flicker in left headlight. Is that a sign that it will soon fail?

 

yes, soon it might turn pink, if so its the bulb. Take it to acura as the bulb and balast are around 200 dollars plus labor, they will cover it under warranty.

 

My left headlight has also begun to flicker. I began noticing it back in October when my mileage was around 49,500. Knowing the bulb was about to burn out, I based my decision to buy an extended warranty on this expensive repair. The bulb still hasn't gone out....yet....but, with the new extended warranty in place for another 4 years and/or 48,000 miles, I'm protected when the bulb goes.

 

A bulb is not considered as a wear item? Is it covered under the Acura extended warranty?