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post #1 of 14 (permalink) Old 05-12-14, 01:32 AM Thread Starter
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2012 TL acceleration hesitation

I have a 2012 Acura TL SH-AWD Technology package. At about 37000 miles. I noticed that while accelerating at any rate of speed gradually, it will have the RPM's jump up and down ranging from 100-750 RPM's. This is happening when slightly pushing on the gas to go from let's say 40-45 or from 55-60(just slightly accelerating, not punching it). I brought it to the dealer and the manager told me she has been getting this lately on this year model with about the kind of miles I am running. I bought this car in April 2011 with 0 miles on the car. It has never done this until about 2000 miles ago. I always run premium (91-93 octane) non-ethanol gas. Always high quality synthetic oil and oil filters as well. The manager first told me this was normal for the electric throttle to do this, but after I told her that a vehicle should not do this (much less a luxury vehicle), she rephrased it and said that it has been coming up over there alot on the TL models and every once in a while on the MDX and RDX as well of the same year. She said that there is no known way to fix it and to just hold my breath that this gets addressed soon by Acura designers/engineers. It will do it from anywhere between 0-80 mphs (i don't really go over 80). My dad has owned a mechanic shop for over 30 years and says he's not sure what it is either, but most likely along the lines of something electrical like the electric throttle or something maybe tied with the transmission. Has anyone else had this issue? And if so, know a fix for it? I have not found any TSB's or recalls on it, so I'm kind of at a standstill. Any help appreciated. Thanks in advance.
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post #2 of 14 Old 05-20-14, 03:29 PM
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Not sure, but I wouldn't be satisfied with that answer. Get Acura Client Relations involved if you have to. Usually that points to an APP sensor, but I assume you're not getting a MIL code. Only other thing I can think of is to make sure that the coolant is topped off. Acuras do funny things with the idle speed if the coolant isn't full because the idle speed sensor measures coolant temp.....if there's no coolant to measure, it doesn't know what to do. Realizing it's a stretch to your current issue, but it can't hurt to check.

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post #3 of 14 Old 07-19-14, 11:43 AM Thread Starter
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Well after everything, I finally got it fixed! They took it for a few days trying different things. It finally came down to 2 things that helped. 1st, they switched out my EGS from a brand new one onto mine. That fixed a good chunk of it, but not all of it. It was still doing it from a stop to accelerate. So then they did a complete flush on the transmission fluid 2-3 times. The completely drained, filled up, drained, filled up, etc. After that, it was cured. I hope I'm not speaking too soon though. I have had it back for a few days now and it seems to be working fine without any problems. They said maybe that's a warning sign for the tranny fluid but it started doing this around 35k miles, and they aren't due for anything until usually around 50k-70k miles. Oh well. I'm going to keep an eye on it the best I can. It's my wife's car so I don't drive it that much. It kinda sucks but if this is the worst of it, I guess I'll be alright. If any other stuff wants to start coming up again, I may be switching to Lexus. That's about the only 2 I would drive besides maybe an Audi(about the only German car I would own). I'll keep posted if anything else comes up, but I figured I would put this up. They had to send some specialist down to work on it, and all the forums and research I had done (including my family who own a shop) found only the same issue I had, but no solutions. Hopefully this will help someone else to maybe turn the dealer onto it.

Last edited by Fotnot; 07-19-14 at 11:51 AM.
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post #4 of 14 Old 08-09-15, 06:49 AM
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Fotnot i'm having the same issue with my TL. Did your solution fix the problem??
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post #5 of 14 Old 08-28-15, 09:20 AM
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Get Acura Client Relations involved if you have to.
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post #6 of 14 Old 05-15-16, 11:35 AM
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Well thanks for posting this. I have the exact same problem with my 2012 Acura TL-SH Awd vehicle. I was getting frustrated that every time I took the vehicle in for service they could not get it too surge. No code is what they told me so of course nothing got done. Anyways I have had this car for two years and this did not start until recently. I have 88000 kms on the vehicle. Two things have happened with this problem...The first during light acceleration would start to surge around the 80 km mark...rpms jumping around 1500 to 1800 range. The second situation while cruising around the same speed of 80 km an hour the rpms would start to jump back and forth around the 1500 to 1800 range again. My frustration with this is that it is not always happening. I will contact Acura Client Services and any additional information would greatly be appreciated. I sure hope that this is not tranny related as I had a 2001 Acura Cl and the transmission went around the 140000 km mark.
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post #7 of 14 Old 05-15-16, 08:13 PM
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Transmission fluid should be changed every 20k, IMO. Fouled transmission fluid can yield a lot of strange behavior ,,,
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post #8 of 14 Old 06-01-16, 04:42 PM
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Originally Posted by EL FLACO View Post
Transmission fluid should be changed every 20k, IMO. Fouled transmission fluid can yield a lot of strange behavior ,,,
Agreed with you EL.
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post #9 of 14 Old 07-05-16, 06:46 PM
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Yes, I have the exact same problem with my 2012 TL SH-AWD. Just so you know.

Last edited by hdd; 07-05-16 at 06:55 PM.
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post #10 of 14 Old 09-04-16, 12:35 PM
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Took my vehicle in for service on Aug.25 2016...Was having the oil changed, transmission fluid changed along with air filters and any adjustments need to the drive belt. Spoke again about the slight surging of the vehicle but not dropping any codes....Finally....yes...Finally....the Acura serviceman told me that there is now a TC Software Update for this vehicle...Well I have been driving this car for over a week since the update. All I can say is that the car is driving beautiful if not better than when I first bought it. NO MORE SURGING and actually the car feels a bit quicker. So if anyone else is having this issue call your dealer for the software update. Apparently this update just came out before my service call.

Last edited by 2012 Acura TL-SH; 09-04-16 at 01:08 PM.
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post #11 of 14 Old 01-23-18, 11:15 AM
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Originally Posted by Fotnot View Post
I have a 2012 Acura TL SH-AWD Technology package. At about 37000 miles. I noticed that while accelerating at any rate of speed gradually, it will have the RPM's jump up and down ranging from 100-750 RPM's. This is happening when slightly pushing on the gas to go from let's say 40-45 or from 55-60(just slightly accelerating, not punching it). I brought it to the dealer and the manager told me she has been getting this lately on this year model with about the kind of miles I am running. I bought this car in April 2011 with 0 miles on the car. It has never done this until about 2000 miles ago. I always run premium (91-93 octane) non-ethanol gas. Always high quality synthetic oil and oil filters as well. The manager first told me this was normal for the electric throttle to do this, but after I told her that a vehicle should not do this (much less a luxury vehicle), she rephrased it and said that it has been coming up over there alot on the TL models and every once in a while on the MDX and RDX as well of the same year. She said that there is no known way to fix it and to just hold my breath that this gets addressed soon by Acura designers/engineers. It will do it from anywhere between 0-80 mphs (i don't really go over 80). My dad has owned a mechanic shop for over 30 years and says he's not sure what it is either, but most likely along the lines of something electrical like the electric throttle or something maybe tied with the transmission. Has anyone else had this issue? And if so, know a fix for it? I have not found any TSB's or recalls on it, so I'm kind of at a standstill. Any help appreciated. Thanks in advance.
My 2012 Acura Tl hesitates and stumbles during acceleration from low speeds. If I press the accelerator down a lot more the car will suddenly surge into wild acceleration. What is the cause of this and can it be fixed?
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post #12 of 14 Old 04-13-18, 11:55 AM
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Agreed with you.

Xe tải TaTa đă có các ḍng xe tải TaTa 1t2,tham khảo kênh Xe tải TaTa Ấn Độ Bảo hành 3 năm
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post #13 of 14 Old 09-04-19, 01:50 PM
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did you find a solution? My 2012 tl Keeps hesitating as well. The acceleration is not smooth and its really uncomftable.
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post #14 of 14 Old 12-13-19, 02:13 PM
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.if there's no coolant to measure, it doesn't know what to do. Realizing it's a stretch to your current issue, but it can't hurt to check.
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