Sounds During Accelerating Shortly After Takeoff

[weslowsk]

I've had my 2025 AWD Hybrid Maverick for a few days and I'm taking note of the driving sounds. First, I had to get used to the regen braking sounds, since I've never driven a hybrid before. So, what I'm about to describe isn't that.
What I noticed is that inconsistently, after gently accelerating to around 30-50 km/h and then easing off on the accelerator, shortly after the engine switches from electric to hybrid, I'll hear a very faint sound that I'll best describe as a gentle whining sound with a change (increase) in frequency (raised pitch), something like a combination of whale sounds and a distant emergency vehicle siren. After a few seconds, the sound is gone until the next time I accelerate from a stop to about 30-50 km/h and ease off the accelerator. I haven't noticed it every time, so I would say it's inconsistent, but maybe I'm not paying close enough attention (because I actually have to pay attention to traffic instead of my truck's sounds).
Anyway, I assume it's normal. Everything is working fine, smooth, and as it should. I'm just wondering if anyone else has noticed these sounds.

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[RICKIEBABY]

I have a 2025 and it has the same noise it is not when I get up to speed but I do hear it when I just start out from a stop. Its kind of sounds like gear noise. But I just have been driving it and it seams to not be a problem just a noise. I have 2000 miles on my Maverick. It is a front wheel drive only.

 

[deanobc]

I've had my 2025 AWD Hybrid Maverick for a few days and I'm taking note of the driving sounds. First, I had to get used to the regen braking sounds, since I've never driven a hybrid before. So, what I'm about to describe isn't that.
What I noticed is that inconsistently, after gently accelerating to around 30-50 km/h and then easing off on the accelerator, shortly after the engine switches from electric to hybrid, I'll hear a very faint sound that I'll best describe as a gentle whining sound with a change (increase) in frequency (raised pitch), something like a combination of whale sounds and a distant emergency vehicle siren. After a few seconds, the sound is gone until the next time I accelerate from a stop to about 30-50 km/h and ease off the accelerator. I haven't noticed it every time, so I would say it's inconsistent, but maybe I'm not paying close enough attention (because I actually have to pay attention to traffic instead of my truck's sounds).
Anyway, I assume it's normal. Everything is working fine, smooth, and as it should. I'm just wondering if anyone else has noticed these sounds.

I have had my 25 since January and come to the realization that the Hybrid drive train and associated noises are to be expected. My work vehicles are all Explorer Hybrids with the police package and they make different noises than my Maverick. My previous personal vehicle was a 2019 Kia Niro Hybrid and it made its own odd noises. I think we all need to get used to the fact that Hybrids have their unique sounds just like you can tell the difference between a Cummins and a Powerstroke diesel, or a Hemi and LT. It is what it is.

 

[Robot-Wrangler]

I have a '25 Hybrid AWD Lariat and yes, that is a little harmless noise. I have 5,500 miles on mine. Watch the regeneration level lights on the dash and see if that correlates to the sound. I suspect the motors are being used as generators and gears and motors make a little noise while doing so.

 

[rk06382]

I've had my 2025 AWD Hybrid Maverick for a few days and I'm taking note of the driving sounds. First, I had to get used to the regen braking sounds, since I've never driven a hybrid before. So, what I'm about to describe isn't that.
What I noticed is that inconsistently, after gently accelerating to around 30-50 km/h and then easing off on the accelerator, shortly after the engine switches from electric to hybrid, I'll hear a very faint sound that I'll best describe as a gentle whining sound with a change (increase) in frequency (raised pitch), something like a combination of whale sounds and a distant emergency vehicle siren. After a few seconds, the sound is gone until the next time I accelerate from a stop to about 30-50 km/h and ease off the accelerator. I haven't noticed it every time, so I would say it's inconsistent, but maybe I'm not paying close enough attention (because I actually have to pay attention to traffic instead of my truck's sounds).
Anyway, I assume it's normal. Everything is working fine, smooth, and as it should. I'm just wondering if anyone else has noticed these sounds.

I hate the FAKE engine noise of the Hybrid mandated by fed law.

 

[stevj]

I hate the FAKE engine noise of the Hybrid mandated by fed law.

And which law would that be?

Steve

 

[rk06382]

And which law would that be?

Steve

Federal Motor Vehicle Safety Standards; Minimum Sound Requirements for Hybrid and Electric Vehicles​

A Rule by the National Highway Traffic Safety Administration on 07/13/2022​

SUMMARY:​

This final rule amends the test procedure in section S6.7.3 of Federal Motor Vehicle Safety Standard (FMVSS) No. 141, Minimum Sound Requirements for Hybrid and Electric Vehicles, as proposed in the September 17, 2019, notice of proposed rulemaking (NPRM), to specify the single point in time that should be used when determining one-third octave band levels of ambient noise measurements used in compliance tests. The agency has chosen not to adopt the remaining portions of the NPRM, including a proposal which would have allowed manufactures of hybrid and electric vehicles (HEVs) to install a number of driver-selectable pedestrian alert sounds in each HEV they manufacture. The driver-selectable alert sounds proposal is not being adopted because of a lack of supporting data. In addition, this final rule acknowledges that a proposed technical change included in the September 17, 2019,​

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