E92Vancouver

This one is perplexing. When I turn left from a low speed an accelerate lightly, my MDX makes a chirp/beep sound. The sound is from the left, front wheel well area.
Sound is hard to replicate because it is not consistent, so I have not gone to the dealer.

I will paypal $20 to the first one to figure this out.

Midnight Mystery

It could be a TPMS sensor briefly loosing it's signal causing a faint electronic warning beep...

Honestly, I have no idea...

But I know this has been happening on Lexus's for about 10 years now!!!

I do hope someone can figure this one out, I've been wondering about this myself after a relative of mine reported a similar random act on a Lexus ES300... Last I heard, it went away on its own...

I've never heard such behavior reported in an Acura, Honda, or anything other than a Lexus and maybe few Toyotas...

That's what elections do, malfunction!!!

Oh, about the reward... Good one, I very much enjoyed that, haha!!!

I do wish you the best of luck!!!

NVAKeith

E92, I was going to link you to the similar thread on MDXERS, but I see that one is you're too.

E92Vancouver

Thanks. Will investigate. I was thinking maybe stability control warning of traction loss? An SHAWD clutch pack slipping?

E92Vancouver

UPDATE: Chirp happens when turning left or right. Typically, I am entering a 90 degree turn at 30 to 35 km/hr. I am coasting in and when I accelerate smoothly/lightly I sometimes get the chirp/beep. It is not a tire screech.

hondu

Is there a traction control light on the dash? Have you noticed if it comes on at the same time?

This sounds like a traction control problem (if not tire chirp issues). By the way, how does the tread on your tires look? How many miles?

Low tread/lack of grip may be affecting your traction control system? Just thinking out loud here.

EE4Life

See TSB 16-042 - Squeak and/or Pop from the Front Suspension While Turning in the 2014-2016 TSB threads.

KB1Spec

iTrader: (4)

Does it sound like a "buzz" sound and a slight vibration when you make a left turn? My does that too. But it only does it when I am going out on a driveway. For some reason the sound only appears at the parking lot at my work place when I kind of angle slightly to the left to make a left turn out of the driveway. But the sound rarely happen to me while driving into the driveway but rather driving out and it ONLY happen while leaving my work place parking lot..

E92Vancouver

Thanks. I have not noticed the traction control light come on. The TC light flashes once in a while when I go over speed bumps too fast. Tires are in new condition.

E92Vancouver

Thanks. Definitely a chirp/beep type sound. No buzz.

KB1Spec

iTrader: (4)

Hmm....but you said it only happen when you turn left? I have that same problem making left turn where there is some noises and the steering wheel feel a slight vibration. Too bad I didnt drive my MDX to work today or I can post a video here to see if we are on the same page.

KB1Spec

iTrader: (4)

Talked to my buddy who is an engineer at Honda HQ and he send me this:

tman

Sort of doubt if that is the issue. OP's is 2016. Acura supposedly fixed that issue 2015+.

Craig Mulcahy

neoshi

Does this generally happen around 20mph?

Craig Mulcahy

neoshi

Ok, I have the same problem, but Acura cannot figure out what it is. From my research, it is likely the ATF warmer issue (TSB 17-026: http://www.urvi.net/forumfiles/SB/B17-026.PDF) when your MDX is stone cold, open your radiator cap and check to see if you have brownish/mustardy looking fluid in the radiator. If so, you'll need to change your transmission, radiator, and flush. If you can do the sound consistently, it's bad enough to diagnose and resolve. Mine is not consistent. If your dealer finds another reason, please let me know. I've been going crazy trying to get them to find and resolve the issue, but they're pretty lost since I did not fail a pressure test (but they also didn't do it as prescribed in the TSB and also torqued my fill bolt incorrectly and caused me to spill ATF all over the road).

Craig Mulcahy