Service Campaign 953 - Hyundai Forums : Hyundai Forum
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post #1 of 364 (permalink) Old 11-04-2018, 08:54 PM Thread Starter
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Service Campaign 953

Has anyone had this done and their cars check engine light came on?


or


Have you had this done and your check engine light did not come on after the service?


I have read quite a few stories of vehicles going into limp mode after the update. Trying to avoid that at all possible costs. Will not get it done until this issue is resolved. So no visits to the dealer for my two 2015 Sonata's.
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post #2 of 364 (permalink) Old 11-04-2018, 09:01 PM
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Topic already running...

My thought, skip it all together,, all Hyundai trying to do is add program logic to PCM to multi task Knock sensor so PCM can distinguish engine knock from rod knock,,, like we cant hear rod knock in first place and know engine is done
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post #3 of 364 (permalink) Old 11-06-2018, 10:07 PM
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Had it done mid September & no issues at all.
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post #4 of 364 (permalink) Old 11-10-2018, 01:47 PM
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So, this week, I was informed that Hyundai told the dealership to replace a harness and the knock sensor. They mentioned Hyundai wanted them to test the fuel system to check things and possibly replace the oxygen sensor based upon the results of the test, just in case. Yesterday I got the call that the patch harness and knock sensor were replaced, and no other replacements were required. I need to go pick up my car.

I also called the Hyundai Safety Recalls and Service Campaigns line (https://autoservice.hyundaiusa.com/C...Campaign/Index, (855) 671-3059) and spoke to an agent who explained the details he had for the service campaign 953. The campaign is to install software to use the knock sensor to detect premature rod bearing wear. I had read that online at the service campaign website, but now that my vehicle has completed the campaign, that detailed information is no longer available. There was a pretty good FAQ attached to the campaign that I wish I had saved.

So, it seems Hyundai is looking for 2015 Sonata engine failures with this campaign, and that the failure is the same issue that they had on the 1.2 million recalled 2011-2014 models. My dealership said there is no end in sight for the replacements they have been doing on those model years.

The dealership doesn't seem to know exactly what the campaign is for, as I've never had them provide me any details about rod bearing wear when I asked about the need for the update. And, they have no explanation when I talked to them on the phone about how this patch harness and oxygen sensor replacement solves some unknown issue after installing the software update. I can speculate, but I don't have enough information to back my speculation. I hope to be able to talk to someone more informed than the service agent at the dealership when I go to pick up my vehicle.

But, thanks to this forum and the internet, I am more aware of this issue and will certainly be more closely watching my oil level and color than I have been if I decide not keep the vehicle long term.
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post #5 of 364 (permalink) Old 12-17-2018, 10:53 PM
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Just happened to my 2015 Sonata when it was fine. Brought in for oil change and now in limp mode and needs a wiring harness replaced. If that doesn't work they say a new engine. I am pissed.
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post #6 of 364 (permalink) Old 12-18-2018, 05:49 AM Thread Starter
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Originally Posted by shultz11 View Post
Just happened to my 2015 Sonata when it was fine. Brought in for oil change and now in limp mode and needs a wiring harness replaced. If that doesn't work they say a new engine. I am pissed.

Well, that definitely confirms it, no way I'm getting 953 done on my wife's and son's 2015 Sonata's. This is absolutely BS, they can't tell that this is causing major problems for vehicles. UN--BE--LIEV--ABLE!

I'm staying away from the dealer and if I do have to go for some reason, I hope I can decline the update.
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post #7 of 364 (permalink) Old 12-18-2018, 07:28 AM
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Quote:
Originally Posted by Ryan T View Post
Well, that definitely confirms it, no way I'm getting 953 done on my wife's and son's 2015 Sonata's. This is absolutely BS, they can't tell that this is causing major problems for vehicles. UN--BE--LIEV--ABLE!

I'm staying away from the dealer and if I do have to go for some reason, I hope I can decline the update.

As I said on the other thread, I'm skipping the dealer with this as well. I got my 15 Sonata Sport in October, and have a "free" oil change at the dealer scheduled in January, where I'm sure they would do this update.


Instead, I'm going to skip it, go to my trusted mechanic for all maintenance, and if the engine starts acting up, bring the dealer and warranty into play. I bought 6 extra years of factory warranty for a total of 8 at purchase.

"Yeah, well, that's just, like, your opinion man."- The Dude
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post #8 of 364 (permalink) Old 12-18-2018, 08:20 AM Thread Starter
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Originally Posted by cooleybird View Post
As I said on the other thread, I'm skipping the dealer with this as well. I got my 15 Sonata Sport in October, and have a "free" oil change at the dealer scheduled in January, where I'm sure they would do this update.


Instead, I'm going to skip it, go to my trusted mechanic for all maintenance, and if the engine starts acting up, bring the dealer and warranty into play. I bought 6 extra years of factory warranty for a total of 8 at purchase.
Wise decision. Steering clear of this campaign until they sort it out is the best option. I sent an email to Hyundai to see what their exact position is on why this is happening to vehicles and what they are going to do about it. Can't wait to see the response.
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post #9 of 364 (permalink) Old 12-18-2018, 09:28 AM
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Thanks for this info. I was in the process of calling to set up my appointment for my 2015 Sonata, however this forum has provided all the info I need to NOT do as such! This is just ridiculous! I wonder by declining to get it done will they still honor the free 10 year warranty extension. They should but I just re-read the notice I received in the mail and it states " upon completion of this product improvement campaign" Again...just ridiculous!!
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post #10 of 364 (permalink) Old 12-18-2018, 10:00 AM
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Thumbs down Sonata owner

Thanks for this info. I was in the process of calling to set up my appointment for my 2015 Sonata, however this forum has provided all the info I need to NOT do as such! This is just ridiculous! I wonder by declining to get it done will they still honor the free 10 year warranty extension. They should but I just re-read the notice I received in the mail and it states " upon completion of this product improvement campaign" Again...just ridiculous!!
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