New owner greeting and wind noise question

Hey everyone! I just purchased a 2016 Sparkling Sea Metallic c2 Prius C and absolutely loving it! I'm coming from a Miata and enjoying the change. I look forwards to getting to know the forum better and learn more about the vehicles, as well.

I have a new owner question and maybe someone else can help. The car is brand new and I don't see anything strange, but it seems like I keep getting this consistent gentle windy-whistling sound from the sideview mirror area. It happens on both the driver and passenger side, so I'm led to believe there may be a reason for it but I could be wrong. It the sound made almost like when you have a bad weather seal strip. The intensity of it increases with speed and wind.

If anyone has dealt with this or has a fix, please let me know. Thank you in advance

 

I'll have to look into it more, thank you! The Miata was definitely noisy, but it was that low wind sound. This one from the Prius is like a gentle high pitch whistling noise. When I turn the side mirrors in, it disappears.

Other than that, I love the car! High 50's and low 60s mpg is absolutely amazing, as well as the technology of the vehicle, overall.

 

Thank you for the warm welcome and suggestions! I love the car so far, once i get this wind whistle situated I'll feel perfect about the car. It sounds almost like a low boiling tea kettle whistle. I've tried covering the holes and still no dice. Just kind of disappointed, admittedly, that I buy a brand new car and this is happening.

 

Had the dealer take a look at it, and we even test drive a fresh Prius C off of the lot. It made the same noise. To even add additional confirmation, drive a family members Prius C and even theirs did the same noise from the side mirror area. Three random cars all doing the same thing just leads to believe that it's part of the vehicle design somehow.

A side question I have is that after a few hundred miles of city driving, I've been taking the C on the freeway and making sure to fluctuate my speed, generally going up to low 70s and mid-low 60s...how long should I have to continue to keep fluctuating these speeds? I've read a lot on the forum and some people do it for the first 1000 miles, while some just drive the car normally with no reserve...all have in common that there's been no issues regardless of how it's been driven on the freeway during break in. I'm curious what you might suggest, though.

 

Thank you for the prompt reply! I figured as much that break-in is pretty much a tradition being held on to. I bought a 2008 Yaris new and the first thing I did was hop on the freeway to go show it off to my gf (she has the sedan and it influenced me to buy the liftback), 7 years after that and 250k miles on it when I sold it to a relative, it ran like a top and had to do nothing but basic maintenance.

I'm guessing that the Prius C would have the same quality considering it uses a modified 1nz-fe engine, which they Yaris uses.

I'm really liking this forum so far, very informative and the people are very friendly.

 

lol that's a great reply, they definitely are showing signs of approval!

 

I'm curious when you guys and gals did your first oil change?

Mines a 2016 New off the lot, so it's been there for quite some time. Sticker says 2-7-17 or 5000 miles...well, obviously it's passed that date. The oil looks totally fine, so not sure what to think. And I thought the first oil change is at 10k, so I don't know why it says 5k. Did you change oil early to get out contaminants?

 

I wonder why the sticker says oil change at 5k. I hope they didn't put conventional oil in it or something.

 

I called and they only want to do the basic check and tire rotation. That the oil change can wait until 10k. My concern is that it being a last years model, is the oil in it okay or is it too old and should be replaced right away?