Hi,
I am trying to understand how/when do Honda Clarity software updates actually work with the goal of avoiding them (I'll get into 'why' later).
My local dealership appears to be completely clueless on the subject and the only thing I can say for 'certain' is that there were some updates installed on my car when I brought it in for camera calibration (after a windshield replacement).
According to the dealership they 'didn't do anything' (in terms of updating/changing my Clarity's software/settings) and the only suggestion they had was to talk to Honda Canada customer support -- which turned out to be a giant waste of time as they say that for any technical issues I have to go to the dealerships.
I did some googling and reading and found e.g. this: https://www.insideevsforum.com/community/index.php?threads/how-do-i-know-which-updates-i-need.3650/
They say "You go to your service center, they plug it in, and it gets updated based on VIN."
Does anyone know if this is true? Is it something that happens automatically without any interaction from the dealership/technician doing the work on the car?
Any idea what 'plug it in' means in this context? Do they use ODB-II port or something else? Can I e.g. plug-up OBD-II port with a 'DO NOT REMOVE' sticker in order to make sure my Clarity's software will not be updated 'by accident' without anyone's knowledge?
Or is it some other port that they use for this purpose?
I am also trying to figure out which updates have already been installed on my car -- without risking them installing any more updates without my knowledge. I tried to ask my dealership, but this is also an area where they are completely clueless.
I found examples like this on these forums: https://www.insideevsforum.com/comm...-for-2018-clarity-phev.2183/page-6#post-35120
I also read somewhere that they (dealerships) can 'scan' something to pull up the list of available updates. Is this true? Can someone explain how this is done so I can 'teach' my dealership how to do it?
Now to answer the 'why' part in case anyone cares
The previous updates to my Clarity that appear to have been installed (I do not have any proof that they were, but I do not have any other explanation as to what else might be the cause) have made my car 'worse' compared to what it was when I bought it.
LKAS used to be available starting at 60 kph and now it refuses to engage below 70 kph. Also there were changes (for the worse, in my opinion) in how cruise control controls work. I posted about this previously here: https://www.insideevsforum.com/comm...um-lkas-speed-dispute-with-honda-canada.7224/
Also -- and this is something I'm much less certain of -- it feels like the updates (or whatever) were fiddling with engine settings. There was a point in time (after one of my visits to the dealership) when driving under gas engine was actively unpleasant -- it was tending to use revs that caused significant noise and vibration in the car; luckily after a subsequent visit (for 'diagnostics' which also was not 'supposed' to change anything) that seem to have cleared up -- it seems to work much smoother now.
All in all, I'm very unhappy with the potential for my car behavior to be changes without my -- and my dealership's -- knowledge and potentially making things worse than before -- thus I'm looking for any information that might help me avoid those software updates in the future.
Any help will be greatly appreciated, thanks!
I am trying to understand how/when do Honda Clarity software updates actually work with the goal of avoiding them (I'll get into 'why' later).
My local dealership appears to be completely clueless on the subject and the only thing I can say for 'certain' is that there were some updates installed on my car when I brought it in for camera calibration (after a windshield replacement).
According to the dealership they 'didn't do anything' (in terms of updating/changing my Clarity's software/settings) and the only suggestion they had was to talk to Honda Canada customer support -- which turned out to be a giant waste of time as they say that for any technical issues I have to go to the dealerships.
I did some googling and reading and found e.g. this: https://www.insideevsforum.com/community/index.php?threads/how-do-i-know-which-updates-i-need.3650/
They say "You go to your service center, they plug it in, and it gets updated based on VIN."
Does anyone know if this is true? Is it something that happens automatically without any interaction from the dealership/technician doing the work on the car?
Any idea what 'plug it in' means in this context? Do they use ODB-II port or something else? Can I e.g. plug-up OBD-II port with a 'DO NOT REMOVE' sticker in order to make sure my Clarity's software will not be updated 'by accident' without anyone's knowledge?
Or is it some other port that they use for this purpose?
I am also trying to figure out which updates have already been installed on my car -- without risking them installing any more updates without my knowledge. I tried to ask my dealership, but this is also an area where they are completely clueless.
I found examples like this on these forums: https://www.insideevsforum.com/comm...-for-2018-clarity-phev.2183/page-6#post-35120
I also read somewhere that they (dealerships) can 'scan' something to pull up the list of available updates. Is this true? Can someone explain how this is done so I can 'teach' my dealership how to do it?
Now to answer the 'why' part in case anyone cares

LKAS used to be available starting at 60 kph and now it refuses to engage below 70 kph. Also there were changes (for the worse, in my opinion) in how cruise control controls work. I posted about this previously here: https://www.insideevsforum.com/comm...um-lkas-speed-dispute-with-honda-canada.7224/
Also -- and this is something I'm much less certain of -- it feels like the updates (or whatever) were fiddling with engine settings. There was a point in time (after one of my visits to the dealership) when driving under gas engine was actively unpleasant -- it was tending to use revs that caused significant noise and vibration in the car; luckily after a subsequent visit (for 'diagnostics' which also was not 'supposed' to change anything) that seem to have cleared up -- it seems to work much smoother now.
All in all, I'm very unhappy with the potential for my car behavior to be changes without my -- and my dealership's -- knowledge and potentially making things worse than before -- thus I'm looking for any information that might help me avoid those software updates in the future.
Any help will be greatly appreciated, thanks!