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Check emissions system/ electric parking brake issue

Old 05-02-2017, 07:24 PM
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Check emissions system/ electric parking brake issue

So today I was driving at a leisurely pace on a highway on ramp (about 50) when I get two warnings in the MID - one says electric parking brake problem and the other says emissions system problem (see pics attached- sorry about the orientation). The parking brake was disengaged and had not been left on and the battery in the car is new (about 10 months on it). I got back to the office and turned the car off, waited 5 minutes and turned it back on but the warnings persisted. When I left for the day (about 5 hours later), warnings came back again. So, car is headed in to the dealer on Friday morning (per Acura service rep it is fine to drive) but wanted to see if there are any ideas about a cause from the collective gurus here. Good thing is, whatever it is it should be warranty work...

Any thoughts about the cause?
Attached Thumbnails Check emissions system/ electric parking brake issue-img_0059.jpg   Check emissions system/ electric parking brake issue-img_0060.jpg  
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Old 05-02-2017, 08:16 PM
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my guess would have been battery, but you pretty much eliminated that unless you got a bad one
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Old 05-02-2017, 08:23 PM
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I thought that at first as well but it looks like RLX Sport-Hybrid encountered almost the same thing in the blackbird previously due to a catalytic converter and there is a TSB as well to reprogram the ecu. So now I am armed with that info and a TSB number for Friday when I go to have it checked out...

It was strange to see the parking brake problem light up pulling onto a highway though... That almost threw me for a loop.
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Old 05-02-2017, 08:55 PM
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From my experience the electric parking brake warning will come on together with a lot of other warnings, without it being the problem.
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Old 05-02-2017, 09:03 PM
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Originally Posted by AP8ESQ View Post
So today I was driving at a leisurely pace on a highway on ramp (about 50) when I get two warnings in the MID - one says electric parking brake problem and the other says emissions system problem (see pics attached- sorry about the orientation). The parking brake was disengaged and had not been left on and the battery in the car is new (about 10 months on it). I got back to the office and turned the car off, waited 5 minutes and turned it back on but the warnings persisted. When I left for the day (about 5 hours later), warnings came back again. So, car is headed in to the dealer on Friday morning (per Acura service rep it is fine to drive) but wanted to see if there are any ideas about a cause from the collective gurus here. Good thing is, whatever it is it should be warranty work...

Any thoughts about the cause?
I had the same exact problem and started a thread on 12-31-16 about my experience with it. I'm not a forum expert, otherwise I'd post a link here to take you directly to it. But it may help if you go back and look at it. No guarantee that it's the same, but sure sounds like it. BTW, no problems since.
Good luck!
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Old 05-16-2017, 12:01 PM
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Same issue

Do you have an update as to your diagnose, plus the TSB number you found? I have the same problem, now having appeared twice. The first time it went away after 3 days, but just appeared again yesterday (about 2 weeks from the first time). Car appears to drive fine and everything seems to be working, despite the messages.

Thank you.
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Old 05-16-2017, 04:17 PM
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I had this happen a long time ago. Clearing the codes is step one. Beyond that I can't remember now but I think I had the front Cat replaced under warranty which ultimately fixed the issue. Also have the battery checked. The car is fine but when a code is thrown, lots of lights go off to get your attention.
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Old 05-16-2017, 06:34 PM
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^^
I suspect your problem was TSB 17-019 RLX-Sport Hybrid, and not a hardware problem......

It could also be the cause of the warning lights you guys are getting......worth mentioning this TSB to the Service Department.....


TSB 17-019 - MIL Comes On with DTC P0430
Applies To: 2014 RLX Sport Hybrid - ALL - ALL
2016–17 RLX Sport Hybrid - ALL - ALL
http://www.urvi.net/forumfiles/SB/B17-019.PDF
http://techinfo.honda.com/Rjanisis/p...nu/B17-019.PDF
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Old 05-16-2017, 08:02 PM
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Sorry about the lag. Car went in on 5/5 and they cleared the codes (it was pulling the cat error code - nothing for the parking). My service guy didn't know about the TSB so I showed him and he did the update. From that point no problems and no recurrence of the issue.

He did say if the issue happened again they would replace the cat but that it was "highly unlikely" any of the cats went bad at 16k miles. He also noted my "chart" that the car did have the issue for future reference.
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Old 05-17-2017, 10:15 AM
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Originally Posted by RLX-Sport Hybrid View Post
I had this happen a long time ago. Clearing the codes is step one. Beyond that I can't remember now but I think I had the front Cat replaced under warranty which ultimately fixed the issue. Also have the battery checked. The car is fine but when a code is thrown, lots of lights go off to get your attention.
Thanks. I had battery issues last year on the RLX which was replaced with a brand new one under warranty. So I doubt it's the battery (and if it is, then something else is wrong and causing unnecessary drain on the battery).
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Old 05-17-2017, 10:17 AM
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Originally Posted by pgeorg View Post
^^
I suspect your problem was TSB 17-019 RLX-Sport Hybrid, and not a hardware problem......

It could also be the cause of the warning lights you guys are getting......worth mentioning this TSB to the Service Department.....


TSB 17-019 - MIL Comes On with DTC P0430
Applies To: 2014 RLX Sport Hybrid - ALL - ALL
201617 RLX Sport Hybrid - ALL - ALL
http://www.urvi.net/forumfiles/SB/B17-019.PDF
http://techinfo.honda.com/Rjanisis/p...nu/B17-019.PDF
Thanks. Will take this TSB into the service manager tomorrow for my repair. Just like last time, the lights went off today (2 days later), so suspect it's something software related throwing off the car. But will have them check for other possible issues including the O2 sensor which was mentioned in another thread.

You guys are awesome!!!
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Old 05-19-2017, 06:15 AM
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Glad this was resolved! Pesky electronics....
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Old 05-19-2017, 02:06 PM
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Update,

Dealer couldn't locate the TSB (likely because I am in Canada and Honda Canada hadn't issued it yet). It did help them pinpoint the issue. They did "1255D8 Software Update" and for now seems to have fixed the problem, but only time will tell.

Thanks again for the forum for the great knowledge and advice!
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Old 05-19-2017, 02:35 PM
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We are here for each other in good times and bad. Enjoy!

Oh and if something else comes up, reach out to us here and we will be happy to lend a hand in resolving anything else.
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Old 05-19-2017, 02:49 PM
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I'm of the opinion that every time you take your Acura in for service of any kind, the technicians should install the latest software updates for your model. It takes about 10 minutes, the software is already available for no cost to the dealership, and preventing problems is always better than trying to diagnose and solve them once they happen.
Just my two cents.

Thanks for the update bigred123.
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Old 06-26-2017, 02:39 PM
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I had similar issues on my 2017 MDX (3 months), I drove on my trip to Las Vegas two weeks ago. I had been driving for 4 plus hours with AC turn on to very low on rear seat (need air flow for 3rd row seat). Suddenly, the car alerted the warning and emission system failure, electric parking failure, collision system failure and more. I soon pulled the car to off ramp and battery cut off the engine itself and I stopped on slope ramp. I turned off the engine and check manual book, emission system failure could due to misfire. I restarted my car, the warning did not go away. I waited for another 10 more minutes to restart. I still saw the warning for all failure. I slowly drove my car to flat area and stop my car and open up the hook to cool down the engine. After 40 minutes, I restarted my car, all warning went away. I drove my car with higher AC setting and stop 10 mins for restroom break for every two hours. I was glad that we got home safe. I did not bring my car to dealer because I did not see the warning again.
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Old 06-26-2017, 02:54 PM
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Originally Posted by rgoh99 View Post
I had similar issues on my 2017 MDX (3 months), I drove on my trip to Las Vegas two weeks ago. I had been driving for 4 plus hours with AC turn on to very low on rear seat (need air flow for 3rd row seat). Suddenly, the car alerted the warning and emission system failure, electric parking failure, collision system failure and more. I soon pulled the car to off ramp and battery cut off the engine itself and I stopped on slope ramp. I turned off the engine and check manual book, emission system failure could due to misfire. I restarted my car, the warning did not go away. I waited for another 10 more minutes to restart. I still saw the warning for all failure. I slowly drove my car to flat area and stop my car and open up the hook to cool down the engine. After 40 minutes, I restarted my car, all warning went away. I drove my car with higher AC setting and stop 10 mins for restroom break for every two hours. I was glad that we got home safe. I did not bring my car to dealer because I did not see the warning again.
Stupid question: Hasn't it been like 2,000 degrees out there of late? I wonder if the extreme heat had anything to do with it?
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Old 06-26-2017, 03:04 PM
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Originally Posted by RLX-Sport Hybrid View Post
Stupid question: Hasn't it been like 2,000 degrees out there of late? I wonder if the extreme heat had anything to do with it?
The temperature was 105F. I guess AC setting may be the cause. I did not see the temperature indicator overheat.
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Old 08-09-2017, 08:36 AM
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I had the exact same thing happen to me yesterday in my 2017 Acura MDX, It's being towed to the dealership today as I live 120 miles from the dealership.
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Old 08-09-2017, 05:10 PM
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Originally Posted by Bulldog2 View Post
I had the same exact problem and started a thread on 12-31-16 about my experience with it. I'm not a forum expert, otherwise I'd post a link here to take you directly to it. But it may help if you go back and look at it. No guarantee that it's the same, but sure sounds like it. BTW, no problems since.
Good luck!
Spoke too soon. Happened again 2 or three weeks ago. Same response....ok since then. As I said on another post, I hope a pattern isn't starting.

And neither time mine was in hot conditions.
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Old 08-11-2017, 07:50 PM
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My issue has not returned since I had the software update done.
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Old 08-13-2017, 03:16 PM
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My original issue with this problem occurred in 2015 during a return trip from main and New Hampshire when I had a xmas tree in the dash...
Long story short I made to the Acura dealer in upstate NY and was told that my Oxygen Sensor was the culprit.
Since it has been changed I have not had a problem...
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Old 10-19-2017, 12:43 PM
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So it seems as if everyone has solved the same problem with something else. I've heard multiple different parts being changed on the internet, supposedly "solving" the problem. But also just resetting it solving it sometimes temporarily. I've got the same two sensors going off today, everything still works fine. I do have 77,000 miles on it so a little more than the average TLX. I really expected 150k out of it before any type of issue even as small as this because I will still be under 4 years and I expect less than 5 years for electronic problems. It's pretty bad I have a 04 TSX with 160k on it that has never had anything even remotely have problems. But my 2 year old car not only has this come up, but the mud flaps have all started peeling. Hopefully it's just a reset it and drive it deal.
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Old 08-22-2018, 06:44 PM
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After purchasing my 9th Acura ( RLX Elite Hybrid), I have decided to join the group. This appears to be a great group of Acura owners.
Today I got the same message as I see at the start of this thread. I just had my car towed to my dealer and they are looking into it. I am in Canada so will let them know that TSB 17-019 may not be available to them. Hopefully this is just a simple software issue. However with my "parking brake issue" the parking brake came on when I stopped at a traffic light and I could not move. I turned the car off and while the messages did not disappear I could drive the car upon restarting it. A little scary to say the least. I will let everyone know what happens.
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Old 08-23-2018, 09:59 PM
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Welcome to AZ, NineAcuras! I guess I'll have to teach you the secret RLX Sport Hybrid owner handshake (I'm a former owner/lessee so I still remember it, LOL). Print that TSB and take it to the service folken at the dealer.
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Old 08-23-2018, 11:35 PM
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Looking forward to learning the secret handshake...…:-). I started being a loyal Acura fan with my 1991 Legend but no one showed me the handshake.
As an update - I pick the car up in the morning - the comment was "could be a software issue and we installed the newest software - could be "bad gasoline" (so blame Chevron I guess)"
In any case they say everything is working as it should be......so hopefully..... This is only the second time I have had one of my Acuras towed and the other time I left it at the dealership and bought this car....
So - we will see how the update works - other than that I have been very happy with the car - fantastic performance combined with amazing gas mileage (with Chevron gas...). Unfortunately the RLX (and Acuras in general) are now very underrated by Consumer Reports etc..
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Old 08-25-2018, 03:00 PM
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Sooooo......update? Hopefully it's all worked out.
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Old 08-25-2018, 03:48 PM
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Got the car back yesterday - they updated the PCM to 9SA770 #37805-R9S-A77 and EPS to Y3J040 # 39990-TY3-J04. They also suggested that it may have been "Bad Fuel" but I spoke to the manager of the Chevron where I get all my gas and they have not had any issues with their fuel (and I believe Sheryl...:-). I am a little reluctant to use the electronic E brake now - but I guess I should use it a lot right now to see if the issue is fixed for sure......thanks for the follow up.
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