2023 RDX Aspec Advanced Trans slipping ?

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Old Aug 6, 2025 | 01:47 PM
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2023 RDX Aspec Advanced Trans slipping ?

Hey guys:
A number of times, very randomly, I will go to accelerate and my car will not accelerate but the engine will rev real high. This is while moving.
Is this a common issue ? My car is under warranty so no issue getting whatever fixed or replaced.
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Old Aug 6, 2025 | 02:05 PM
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It's honestly hard to guess and tell you on this forum.

How many miles are on it, have you done trans fluid?

I would just take it to the dealer since it's under warranty.
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Old Aug 6, 2025 | 02:29 PM
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13k
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Old Aug 6, 2025 | 02:37 PM
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Just take it into the dealer, way better alternative to asking here.

Enjoy that warranty and post back what it ends up being.
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Old Aug 6, 2025 | 03:26 PM
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Will do...I was just wondering if it is a known issue or if there was a TSB.
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Old Aug 6, 2025 | 07:26 PM
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I don't recall hearing about the issue before and we've never experienced that.
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Old Aug 8, 2025 | 07:45 AM
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Originally Posted by SilverJ
Hey guys:
A number of times, very randomly, I will go to accelerate and my car will not accelerate but the engine will rev real high. This is while moving.
Is this a common issue ? My car is under warranty so no issue getting whatever fixed or replaced.
13k on your RDX - don’t fret - take it to the dealer for them to log the issue and see what could be wrong. Could be a software or transmission control module. I’ve never had that issue in 5 years and 29k miles.
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Old Aug 8, 2025 | 04:59 PM
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Originally Posted by Texasrdx21
13k on your RDX - don’t fret - take it to the dealer for them to log the issue and see what could be wrong. Could be a software or transmission control module. I’ve never had that issue in 5 years and 29k miles.
Yeah, that's the plan. Its so random though, I feel like they won't be able to duplicate. We will see though !
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Old Aug 11, 2025 | 11:14 AM
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Try to get an in-car video of it occurring. That's what I did with my sunroof popping issue since it was so intermittent (though, they were able to replicate it easily anyway).
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Old Aug 12, 2025 | 02:46 PM
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Originally Posted by SilverJ
Hey guys:
A number of times, very randomly, I will go to accelerate and my car will not accelerate but the engine will rev real high. This is while moving.
Is this a common issue ? My car is under warranty so no issue getting whatever fixed or replaced.
I think I had a similar problem with my 2019 one time. It was scary. Took it to the dealer and they said they couldn't reproduce. Part of the reason why I wanted to get rid of it.
https://acurazine.com/forums/3g-rdx-...-stuck-998722/

There is no TSB for transmission as far as I am aware, but there have been quite a few replacements.

The transmission in my 2023 was replaced when it was almost new due to whistling.
https://acurazine.com/forums/3g-rdx-...ostly-1005367/
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Old Aug 13, 2025 | 07:57 AM
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Originally Posted by anoop
I think I had a similar problem with my 2019 one time. It was scary. Took it to the dealer and they said they couldn't reproduce. Part of the reason why I wanted to get rid of it.
https://acurazine.com/forums/3g-rdx-...-stuck-998722/

There is no TSB for transmission as far as I am aware, but there have been quite a few replacements.

The transmission in my 2023 was replaced when it was almost new due to whistling.
https://acurazine.com/forums/3g-rdx-...ostly-1005367/
my transmission is fine, but has a slow leak, or more precisely porous transmission case. The dealer cant do anything about it because it has to drip to cover plate before warranty can replace transmission. I have to live with it, big disappointment with Honda quality and warranty coverage
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Old Aug 13, 2025 | 09:22 AM
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Originally Posted by russianDude
my transmission is fine, but has a slow leak, or more precisely porous transmission case. The dealer cant do anything about it because it has to drip to cover plate before warranty can replace transmission. I have to live with it, big disappointment with Honda quality and warranty coverage
Have you tried a different dealer? May be worth a shot if you haven’t.
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Old Aug 13, 2025 | 09:55 AM
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Originally Posted by anoop
Have you tried a different dealer? May be worth a shot if you haven’t.

yes, two of them, and also multiple attempts. Very time consuming, each time has to wait for them
hours. I dont have that much time
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Old Aug 13, 2025 | 10:05 AM
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Originally Posted by russianDude
yes, two of them, and also multiple attempts. Very time consuming, each time has to wait for them
hours. I dont have that much time
That's a bummer. If there is a confirmed leak, they shouldn't be putting you/customer's through this.
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Old Aug 13, 2025 | 10:08 AM
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BTW, OP, this sounds like a safety issue (car not responding to accelerator input), so I would file a report with NHTSA.
https://www.nhtsa.gov/report-a-safety-problem#index
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Old Aug 13, 2025 | 06:33 PM
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+2 for maybe a video of the occurrence. possible have a passenger film while you drive, to show the symptoms your experiencing.
dealers will do everything to not honor or cover stuff warranty, such as claiming they cannot reproduce it.

with the video you should have a strong case, and at only 13k on the dash, they might just give you a new transmission if its not an easy fix.
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Old Aug 13, 2025 | 06:46 PM
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Originally Posted by MyGuti
+2 for maybe a video of the occurrence. possible have a passenger film while you drive, to show the symptoms your experiencing.
dealers will do everything to not honor or cover stuff warranty, such as claiming they cannot reproduce it.

with the video you should have a strong case, and at only 13k on the dash, they might just give you a new transmission if its not an easy fix.
With my 2019, I had a video showing what I experienced which I took driving around a facility after I had pulled off the main road. Didn't help with getting it addressed. Dealer said they couldn't reproduce and there were no error codes.
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Old Aug 14, 2025 | 08:49 AM
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Originally Posted by anoop
With my 2019, I had a video showing what I experienced which I took driving around a facility after I had pulled off the main road. Didn't help with getting it addressed. Dealer said they couldn't reproduce and there were no error codes.
This was my experience with intermittent issues (not transmission related though). I took videos on separate days, sometimes months apart, showing intermittent problems but the dealership didn't care. They have to be able to reproduce them before offering to fix them. Acura has really gone downhill.
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Old Aug 14, 2025 | 10:31 AM
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Originally Posted by anoop
With my 2019, I had a video showing what I experienced which I took driving around a facility after I had pulled off the main road. Didn't help with getting it addressed. Dealer said they couldn't reproduce and there were no error codes.
That's a good idea. I cant replicate this issue if I tried. it is VERY random and has only happened like 2 or 3 times. I would assume you could replicate...hence camera video ?
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Old Aug 14, 2025 | 11:07 AM
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Originally Posted by SilverJ
That's a good idea. I cant replicate this issue if I tried. it is VERY random and has only happened like 2 or 3 times. I would assume you could replicate...hence camera video ?
It only happened once and was very scary. I immediately got off the road and into parking lot where I drove for a bit and did the recording. It persisted through braking to a stop. Once I turned the car off and back on again, the problem went away.
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