ECU update solves the gear shift indicator issue in my Kia Carens

Came to know that this issue was first reported to Kia India from the Perungudi Kia service centre through my car.

BHPian jasonbourne recently shared this with other enthusiasts:

There seems to be some issue with the latest ECM Upgrade performed on Kia Carens Diesel. Mine went for its 10K service last month. As a part of the service, ECM upgrade was performed. The Transmission Change Indicator no longer works post the upgrade; the upshift and downshift suggesting arrows were missing from the console. However, there were no other issues at all with respect to the performance or mileage of the vehicle. The current gear number is getting displayed as well.

Not sure how the Service centre guys missed it, but I noticed the issue the moment I took the car for a test drive after it was delivered to my home.

I reported it immediately and the service advisor requested to bring the vehicle, when possible. I took it the very next day. Then started their diagnostics and test drives. I thought they were going to simply update it again and get rid of the issue. But that was not the case since the update did not throw any errors in their diagnostic tools. I was there at the service centre for almost 2.5 hrs. At the end of it the Service manager came and apologised for the delay and confirmed that there was a bug in the ECM upgrade patch. The bug could not be found in any of their tools. After which they worked with KIA factory engineers, uploading the logs and it was found from the factory that there was a bug where in the guidance system (the upshift and downshift suggestion arrows) was not working.

At that time, only a small number of Kia Carens across India were impacted by this issue, as reported by the factory. I am still waiting for the updated patch to rectify this issue in my Carens. The last update from the service manager was that they are still waiting for the updated patch from factory and more vehicles are getting affected.

A few days ago, my brother-in-law had the same ECM upgrade done on his Carens, but he did not encounter this issue. I suspect I am the Lucky one

Yaaayyyy ... finally this issue is resolved. I got a call from the Service manager today to come and get the ECU updated with the new Patch. After the ECU update, did a test drive and confirmed that the Transmission Change Indicator is working fine now and MID is displaying the upshift and downshift arrows based on RPM.

A big thanks to Service Manager Mr. Durai Raj who followed up diligently and got it sorted. Came to know that this issue was first reported to Kia India from Perungudi Kia service center through my Car

Check out BHPian comments for more insights and information.