COMMON CURTESY

I may have been doing this wrong for years. Typically, when there is traffic and truck or other RV is passing, I'll flash brights for a second to let them know it's OK to pull back in lane. 90% of the time truck will blink their tail lights, RV's almost never. I've always wondered if trucks have a separate and easily accessed switch to control just the trailer lights. Typically TT's do not and the light control may or may not be handy while driving in heavy traffic. I've had truckers flash brights or blink headlights when it's safe for me to move back. While not always needed, in heavy traffic conditions it is appreciated. Occasionally, I've blinked my lights back but that requires completely turning off all my lights with a switch that is not in the best location. I'm wondering if flashing my brights has been wrong all these years. I've never noticed a negative reaction from any trucker.