Just noticed these small nubs on my RAV4 taillights. Also see them on newer Toyotas and Lexus models with the wrap-around lights. Are they for aerodynamics or just for looks? Don’t think I’ve seen them on other car brands.
They’re for aerodynamics. Probably vortex generators. No clue how they actually help though.
Laken said:
They’re for aerodynamics. Probably vortex generators. No clue how they actually help though.
Saw a video on this. They mostly cut down wind noise and help keep the car stable.
Laken said:
They’re for aerodynamics. Probably vortex generators. No clue how they actually help though.
Maybe they stop snow or dirt from building up in bad spots by messing with the airflow?
@Jean
That might just happen by accident. Doubt Toyota’s engineers planned it that way.
@Jean
Bet it’s because only the bottom inch or so of the taillight is the actual brake light. Toyota didn’t want it getting blocked easily.
Laken said:
They’re for aerodynamics. Probably vortex generators. No clue how they actually help though.
They use these near side mirrors sometimes to stop whistling noises. Not sure why they’d be on taillights though. Maybe there was some weird wind noise back there.
Laken said:
They’re for aerodynamics. Probably vortex generators. No clue how they actually help though.
They mess with smooth airflow to cut down drag.
They’re braille. Helps blind drivers feel when the brakes are on. They pop up more when you stop.
Colby said:
They’re braille. Helps blind drivers feel when the brakes are on. They pop up more when you stop.
You’re joking right? How’s a blind driver gonna feel these while using a cane and steering?
Edit: Oh wait… forgot about the seeing-eye dog.
I’ve been curious about these too on my ‘23 Adventure Trim.
Vortex generators. They tweak the airflow to reduce drag and maybe save a tiny bit of gas.
Fielder said:
Vortex generators. They tweak the airflow to reduce drag and maybe save a tiny bit of gas.
Might be more about keeping dirt and junk off the taillight. Like a tiny deflector.
Gemini’s take: (applies to taillights too)
On Side Mirrors: Little Airflow Tweaks
- What they do: These small fins or bumps on mirror edges help with aerodynamics.
- How they work: Air gets messy around mirrors. These things stir it up just enough to:
- Keep airflow smoother.
- Cut down on drag and maybe wind noise.
- What they look like: Small plastic bits, sometimes blended in, sometimes sticking out.
It’s a rest stop for bugs and leaves. Free ride to the next town.
Wesley said:
It’s a rest stop for bugs and leaves. Free ride to the next town.
Hey, same car here! Same color, year, and trim.
No chance they’re mini rocket launchers?
Gives the mechanic something to hold onto when swapping the light.
(Not really, but funny.)
I always give those spots some extra attention when drying the car.
Adds 0.05 MPG.