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TLX SH-AWD died on highway from engine start stop - Trans poped into N on its own

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TLX SH-AWD died on highway from engine start stop - Trans poped into N on its own

 
Old 01-09-2019, 02:06 PM
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TLX SH-AWD died on highway from engine start stop - Trans poped into N on its own

Hey guys,

I've been a bit off the grid here for the past year after having an absolutely abysmal experience with my local dealership I've been going to for the past 10+ years which I will never step foot into again.
However, that's another conversation within itself.

This morning while on the Garden State Parkway here in NJ I was in stop & go traffic. I had ACC activated following the car in front of me. As the car in front came to a stop, so did my car which then initiated the engine shutoff as part of the start/stop feature.
All was well until the car in front of me started moving again. As some of you may know with ACC feature, if the vehicle in front of you was stopped for more than a few seconds, you have to give the accelerator a little push to get ACC to resume again.
When I gave the accelerator a small push, the dashboard lit up like a Christmas tree beeping trying to restart the engine. It flashed "Shift to Park" which confused me at first. I tried restarting the engine but realized everything was still lit up as if it was in accessory mode but engine was still off.
I then realized the Transmission was in N. After fiddling around with hitting the Park button it finally shifted after a few times and i was able to completely shut everything off, then start the car again. I pulled over to the shoulder and the car was perfectly back to normal. Shut off & started several times with no issues. I then continued driving to work.
In retrospect, it appears that the transmission popped out of Drive and into Neutral on its own during the engine restart. This transmission was recently replaced a few months ago and this is the first time I've ever experience this issue with this vehicle after 55K miles.
I called up the new dealership that I've been dealing with that replaced the transmission and they said I can drop it off today to look at it.

Anyone else with SH-AWD and ACC ever have this happen before? It was very bizarre yet troubling that it happened.

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Old 01-09-2019, 03:24 PM
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Hello,
So i have a 15 TLX SH-AWD. Starting a couple months ago, I noticed at night when my engine shut off at a red light once in a while when restarting my headlights would flicker like it was struggling to restart when I hit the gas. (It does it about 1 in 20 times). Last month, I experienced the same thing as you did when it tried restarting and it went into neutral and shut off the car and I had to restart it.

I work at an Acura dealer in the sales dept, so I brought it in and they checked my battery and a couple other things and they didn't find anything out. My car has not stalled on me again, just the once, but still does the occasional struggle to restart so next week I plan to drop it off again and see if they can relook at it. I spoke with a couple techs and heard a couple things, one said it may be battery is getting old, another said maybe the starter. Will keep you posted.
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Old 01-09-2019, 03:39 PM
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Originally Posted by spoiler900 View Post
Hello,
So i have a 15 TLX SH-AWD. Starting a couple months ago, I noticed at night when my engine shut off at a red light once in a while when restarting my headlights would flicker like it was struggling to restart when I hit the gas. (It does it about 1 in 20 times). Last month, I experienced the same thing as you did when it tried restarting and it went into neutral and shut off the car and I had to restart it.

I work at an Acura dealer in the sales dept, so I brought it in and they checked my battery and a couple other things and they didn't find anything out. My car has not stalled on me again, just the once, but still does the occasional struggle to restart so next week I plan to drop it off again and see if they can relook at it. I spoke with a couple techs and heard a couple things, one said it may be battery is getting old, another said maybe the starter. Will keep you posted.
Hmm interesting. I just had my car at the dealer not that long ago for service and during the multipoint inspection they tested the battery which was OK. I'm scheduled to drop it off tonight so I'll keep you posted as well with what they say.
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Old 01-09-2019, 04:43 PM
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This has happened to me many times. The dealer replaced the battery and it goes away. I just turn off the auto on/off feature now.
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Old 01-09-2019, 06:24 PM
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Originally Posted by spoiler900 View Post
Hello,
So i have a 15 TLX SH-AWD. Starting a couple months ago, I noticed at night when my engine shut off at a red light once in a while when restarting my headlights would flicker like it was struggling to restart when I hit the gas. (It does it about 1 in 20 times). Last month, I experienced the same thing as you did when it tried restarting and it went into neutral and shut off the car and I had to restart it.

I work at an Acura dealer in the sales dept, so I brought it in and they checked my battery and a couple other things and they didn't find anything out. My car has not stalled on me again, just the once, but still does the occasional struggle to restart so next week I plan to drop it off again and see if they can relook at it. I spoke with a couple techs and heard a couple things, one said it may be battery is getting old, another said maybe the starter. Will keep you posted.
That's how it started for me. I got a new battery and it solved the problem. There's a TSB that explains how you have to test the SH-AWD "glass lattice" batteries differently, I strongly suspect when they tested mine they tested it incorrectly and hence it passed. ;-)
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Old 01-09-2019, 07:39 PM
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OP, are you still on the original battery? If yes, just replace it as a precaution. Will likely solve the issue.
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Old 01-10-2019, 03:14 PM
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Originally Posted by TSXV6Guy View Post
OP, are you still on the original battery? If yes, just replace it as a precaution. Will likely solve the issue.
Yes its still on the original battery.

I just heard back from the dealer saying they found 2 codes that were thrown in the history from the incident yesterday morning. Here's the exact text message update:
"Hi, so the tech scanned the vehicle and found a few codes and the fix was a software update."
When I asked what the two codes that they found indicate here's the answer:
"There were two codes that were related to the symptoms you relayed to me last night. One of which was related to the transmission staying in gear too long and the other code was related to the vehicle shifting into neutral and the transmission indicator comes on and wont let you shift into any other gear until the vehicle is shut off."
After asking what does the software update change to help with those two issues, here's the response:
"Yes, the one update will repair the way the transmission shifts and the other is whats called an idle re-learn which is where the car re-learns and adapts to the way you drive the vehicle"

They said its ready to be picked up after the software update.
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Old 01-10-2019, 04:26 PM
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Interesting - I just had the same issue. 2015 SH-AWD Advance Package. Just got the car about a month ago w/ 50k miles. I suspect original battery - and am suspecting the dealer will tell me I need a new battery (and guessing they won't cover it, as batteries are excluded from CPO warranty). Keep us posted!
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Old 01-10-2019, 04:50 PM
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You guys experienced TSB 15-034.
http://www.urvi.net/forumfiles/SB/B15-034.PDF

If I were you, I would check my VIN and read up on the rest of the TSBs related to odd or lousy ZF9 behavior. You may be entitled to other fixes if it chirps, hesitates, etc. Heck, if you are a low VIN and you sense any hard 1-2 and 2-3 shifting, you should get a new tranny under my favorite TSB 15-040. Do anything you can to get the original ZF9 replaced if itís an early edition. Those are nothing but problems.
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Old 01-10-2019, 07:35 PM
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Originally Posted by someguy11 View Post
You guys experienced TSB 15-034.
http://www.urvi.net/forumfiles/SB/B15-034.PDF

If I were you, I would check my VIN and read up on the rest of the TSBs related to odd or lousy ZF9 behavior. You may be entitled to other fixes if it chirps, hesitates, etc. Heck, if you are a low VIN and you sense any hard 1-2 and 2-3 shifting, you should get a new tranny under my favorite TSB 15-040. Do anything you can to get the original ZF9 replaced if itís an early edition. Those are nothing but problems.
That would be weird in the OP's case since he just had the transmission replaced a few months ago according to him. You would think the "new" transmission would have all that stuff applied, but maybe not.
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Old 01-11-2019, 07:46 AM
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Originally Posted by Rocketsfan View Post
That would be weird in the OP's case since he just had the transmission replaced a few months ago according to him. You would think the "new" transmission would have all that stuff applied, but maybe not.
Oh I see that part now. Totally missed it. I agree and certainly would have expected all the software was updated during the tranny replacement. That technician would have to be some sort of noob to replace the tranny and not update the ECM/TCM/PCM software. That stuff is laid out right in the TSB. What OP described is language practically right off the TSB, new tranny notwithstanding. My hopes in reading this thread are that the code thrown by OEM 15ZF9s wasn't some mechanical glitch that carried over to the replacement ZF9s. I've read here (not sure if rumor or truth) that some 15 owners are getting rebuilt 15ZF9s and some are getting the 16+ZF9s in their 15s. Maybe OP got a rebuilt one? Whatever the case, now I'll know what happened if my dashboard lights up and the tranny is in N. Any more than one or two of those events and I would discuss another replacement with my dealer due to safety, quality and reliability concerns.

Eventually all of us will be out of warranty. Some of us already are. Comprehensive is 4yr/50k and powertrain is 6year/70k. Once we pass those thresholds, I presume that reading these codes and updating software is going to be on us, every, single, time. I would want to nip a bad tranny in the bud before reaching that point.
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Old 01-11-2019, 12:15 PM
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Originally Posted by Rocketsfan View Post
That would be weird in the OP's case since he just had the transmission replaced a few months ago according to him. You would think the "new" transmission would have all that stuff applied, but maybe not.
Question would be if the transmission was new or a rebuilt unit. Would not expect all replacements to be factory fresh.
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Old 01-11-2019, 09:28 PM
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Originally Posted by someguy11 View Post
Oh I see that part now. Totally missed it. I agree and certainly would have expected all the software was updated during the tranny replacement. That technician would have to be some sort of noob to replace the tranny and not update the ECM/TCM/PCM software. That stuff is laid out right in the TSB. What OP described is language practically right off the TSB, new tranny notwithstanding. My hopes in reading this thread are that the code thrown by OEM 15ZF9s wasn't some mechanical glitch that carried over to the replacement ZF9s. I've read here (not sure if rumor or truth) that some 15 owners are getting rebuilt 15ZF9s and some are getting the 16+ZF9s in their 15s. Maybe OP got a rebuilt one? Whatever the case, now I'll know what happened if my dashboard lights up and the tranny is in N. Any more than one or two of those events and I would discuss another replacement with my dealer due to safety, quality and reliability concerns.

Eventually all of us will be out of warranty. Some of us already are. Comprehensive is 4yr/50k and powertrain is 6year/70k. Once we pass those thresholds, I presume that reading these codes and updating software is going to be on us, every, single, time. I would want to nip a bad tranny in the bud before reaching that point.
Interesting. How would I know what replacement tranny they put in?
and yes they were trying to charge me the $139 diagnostic fee until I started questioning why these updates were not applied during the recent tranny replacement, they immediately said the fee was dropped. So I think youíre right, they did not update the ECU after replacement.
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Old 01-11-2019, 09:31 PM
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Originally Posted by someguy11 View Post
You guys experienced TSB 15-034.
http://www.urvi.net/forumfiles/SB/B15-034.PDF

If I were you, I would check my VIN and read up on the rest of the TSBs related to odd or lousy ZF9 behavior. You may be entitled to other fixes if it chirps, hesitates, etc. Heck, if you are a low VIN and you sense any hard 1-2 and 2-3 shifting, you should get a new tranny under my favorite TSB 15-040. Do anything you can to get the original ZF9 replaced if itís an early edition. Those are nothing but problems.
As an FYI to my back story. My tranny was experiencing the metallic chirping noise on moderate acceleration which what triggered them to replace the tranny.
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Old 01-20-2019, 08:07 AM
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Welp, this happened to me last week too, exactly as described by reddogTL and spoiler900. ACC brought car to stop. I donít recall if I hit resume or tapped the gas pedal, but it stalled, car got completely jolted and dashboard lit up. Quite a flustering experience in traffic. My brand new tranny took a huge hit when engine failed to start. Jerked the crap out of the car. Surprised the pawl or whatever locked it up survived. Took me about 30 seconds to realize what happened, go through the process to get going, shift to P, shut off, start back up, shift to D and start moving again all the while getting honked at.

Took to dealer for fear of some real damage or codes thrown. They tested the battery per the glass lattice procedure. Checked out okay. Did the relearn and sent me on my way. I hope it doesnít happen again mostly for the concern of doing real damage to the drivetraiin.

My love of this car is waning. Iím starting to wonder every week what is going to happen next and whether Iím going to make it to where Iím going (or home). Any more stalls or tranny drops will make me hate this thing real quick. 6 months in, I canít believe this is a Honda product and my mild buyerís remorse is turning to serious buyerís remorse.

Last edited by someguy11; 01-20-2019 at 08:10 AM.
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