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post #1 of 372 (permalink) Old 06-13-2013, 06:09 PM Thread Starter
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New Multi ECU update!

There's a new Multi ECU update for 2011-2012 Sonata Hybrids.
This ECU update will refine vehicle drivability, HEV transaxle shifts, and cruise control. It came out 6/12/13
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post #2 of 372 (permalink) Old 06-13-2013, 07:50 PM
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13-FL-004
HEV MULTI-ECU UPDATE – VERSION 2

Description:
This bulletin provides information related to a software update of the following controllers: ECM/TCM/HCU/MCU/AHB/OPU by GDS Event#302, and BMS by Event#303.
This ECU Update will refine vehicle drivability, HEV transaxle shifts, and cruise control.
Applicable Vehicles: 2011-2012MY SONATA (YF) 2.4L Hybrid Electric Vehicle (HEV)



TECH DUDE LIVES!!!
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post #3 of 372 (permalink) Old 06-13-2013, 07:59 PM
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Quote:
Originally Posted by vinnyg View Post

13-FL-004
HEV MULTI-ECU UPDATE VERSION 2

Description:
This bulletin provides information related to a software update of the following controllers: ECM/TCM/HCU/MCU/AHB/OPU by GDS Event#302, and BMS by Event#303.
This ECU Update will refine vehicle drivability, HEV transaxle shifts, and cruise control.
Applicable Vehicles: 2011-2012MY SONATA (YF) 2.4L Hybrid Electric Vehicle (HEV)



TECH DUDE LIVES!!!
Vinny, is this the update that was possibly being discussed in the other thread?
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post #4 of 372 (permalink) Old 06-13-2013, 08:06 PM
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I absolutely believe it is. It just came out. I think it is what was installed on the other poster's vehicle that made it run smoother just like the 2013 he was driving. You can view it on HMAservice.com.
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post #5 of 372 (permalink) Old 06-13-2013, 08:36 PM
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When I saw your post I called my dealer. They are checking in to it for me and will get back to me tomorrow.
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post #6 of 372 (permalink) Old 06-13-2013, 08:55 PM
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Wow, I read up on the tech part of the update. It is a complete system update. It updates everything. From reading the guide it requires 30 minutes just to update the firmware. Then it requires a calibration drive. I am excited, if it helps with the cold/first start drive jerkiness and improved the mileage including the cruise control mileage, I will be a very happy camper.
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post #7 of 372 (permalink) Old 06-13-2013, 09:58 PM
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Wonder if this goes for the optima hybrid too? Anyone know??
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post #8 of 372 (permalink) Old 06-13-2013, 10:07 PM
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Just wondering how do you guys know if there are new updates?
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post #9 of 372 (permalink) Old 06-13-2013, 10:21 PM
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Im going to get a oil change this weekend. I will bring this up, but i have a feeling they wont have the proper people on staff to complete it.


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post #10 of 372 (permalink) Old 06-13-2013, 10:46 PM
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Thanks Vinny as we are do for an oil change and will take it in next week for the update.

I regularly check this website that ADMIN1 keeps updated and if you want to see if your car needs any work send him your VIN number in a private message and he will send you an e-mail with the results. I posted that ECU update on his forum so he can add it to the rest of the TSB's.

Recall Bulletins (Revised 8-17-12) - MyHyundaiForums.com

I have a MAC and am unable to set up an account with hmaservice.com
which is probably where that TSB was found.

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