Jeff V.

I want to be very clear here. You do not lose your drive modes. You can still change the car's performance settings and cluster displays using the center console ****, and you can still customize which cluster displays are shown by using the steering wheel controls and the menus built into the cluster.

The only menu you lose is the one in the center screen under "Settings > Drive Mode" that lets you customize when the exhaust is loud, and which level of steering effort is used. If you do not have this menu, then your exhaust and steering continue to be controlled by whichever drive mode is selected using the center console ****.

You lose a customization option for steering and exhaust, and this only affects Z51 and Z06. Base cars never had this menu to begin with. You do not lose the drive modes themselves.

My 2014 never had PDR, so I can't speak to that. The PDR icon is still shown on cars that upgraded to 2016 IO6, but I don't know if it works any more. I can also confirm that my car now has the icon for the front parking cameras, but pressing it does nothing because I don't have any of the related hardware. Not that I expected it to do anything, but at least it doesn't cause the system to crash or something.

This is not correct. As of today, there are 3 versions of HMI. 1.1, 2.0, and 2.5. Those numbers have nothing to do with IO5 or IO6. The module I installed was a HMI 2.5 IO5 unit. If you really want to mess things up, there's IO4 and IOB versions of these modules too.

1.1 was used in 2013 and some 2014 cars. Mostly Cadillacs.

2.0 was used in 2014-2015. It was mostly an engineering change and didn't offer any significant new features vs 1.1.

2.5 was a major hardware upgrade. Android Auto and Carplay require faster processors and more memory. This is why you can't just add those features to the older modules with software alone.

The only hardware difference between IO5 and IO6, regardless of HMI version, is whether or not the navigation GPS hardware is installed on the circuit board. You can tell if an HMI has navigation or not by looking for a small round, blue connector on the outside of the case to the far left of all the other connectors.

IO5 module. Comes in 1.1, 2.0 and 2.5 varieties:

IO6 module. Comes in 1.1, 2.0 and 2.5 varieties:

Just to make things worse, there's IO4 and IOB versions of these modules. The only way to know for sure is to check the part number.

Internets_Ninja

So since I have a 2015 that came with Nav and PDR, does this mean I already have an IO6 module and can add Apple Car Play without breaking anything else?

This is all contrary to what I have read, but I'm going to go re-read to make sure I didn't misinterpret.

Jeff V.

Yes, you have IO6. Check your RPO label in the trunk if you want to be certain.

The problem is, you have an HMI 2.0 and not a 2.5. Stick your head under the dash and look above the hood release cables. Or put your camera in selfie mode and use it like a mirror. The numbers on the module are huge, so you shouldn't have any trouble reading it. Yours will say NG 2.0 HMI.

You need 2.5 and you need a new radio too.

ssidekickbp

This is also different from what I have heard. I heard you only need to replace the modules in the passenger and driver foot wells?

Pckrfan795

You need a HMI and a Radio Control Module

Jeff V.

Those are the modules in the drivers and passenger's footwells. HMI is on the driver's side above the hood release, and radio is under the carpet on the passenger's side, up against the firewall.

ssidekickbp

Gotcha, so at this point there is no way to update a 3LT with Nav and have everything work 100% is what your saying correct?? I just wanted to add car play.

itch808

Am I correct in thinking it will just remember the last setting chose? For example exhaust can be set "OFF" and steering "Auto, linked to drive mode." and it would keep these forever? It's sad that we would spend $1500 to gain AA/Carplay functionality but LOSE other functionalities.

Jeff V.

If you want 100%, then no. Confirmed problems are the Drive Mode menu and steering controls during AA/Carplay calls. There may be problems with PDR on the 2015s, but that's unconfirmed.

Mine is a 2014 2LT that didn't have nav or PDR, and losing the drive mode menu was an acceptable trade off to gain AA and Google Maps. Pandora over USB seems louder and clearer than bluetoooth, but maybe that's a placebo effect.

I have one other idea I might try to fix the missing functions, but I run the risk of bricking my HMI module If I can line up another cheap one, I may try it just for the hell of it. Don't get your hopes up though.

Jeff V.

It might work that way, but I'm not sure. It might only stay until the next time the battery is disconnected.

ssidekickbp

Thanks for all the info. Mine is a 2015 3LT Z51

Internets_Ninja

The company I spoke with said that PDR would not work in 2015 cars with this mod.

redvetteman97

monicatomokc

Hopefully they understood that you currently have the PDR. You were saying in an earlier post that you had an I05 and wanted to upgrade to an I06 and that you had the PDR. Well, you cannot have a PDR with the I05 because it only comes with the I06 that needs factory Nav to function. So if the company thinks you have an I05, they would be correct. If you call them back and say you want to just go from a 2015 I06 to a 2016 I06 just to get Apple CarPlay/AA, they "might" change their tune.

Don't know which company you're dealing with, but here is the company I dealt with back in November 2016 when I bought mine. When I called them they seemed quite knowledgeable on all this upgrade stuff at the time.

http://stores.ebay.com/SPEEDOMETER-S...=p4634.c0.m322

socratesis

Jeff V.

Installing the cluster shouldn't require more than a couple of steps past doing a carbon fiber dash install.

Programming it is another matter entirely.

Flame Red

What year car do you have? Z51 or Z06? Did you Nav and/or PDR? Which combo from Speedometer Sales did you install?

Internets_Ninja

Thank you for the clarification! They actually did think I have the IO5. I'm going to double check my RPO code today that it says IO6.



If it matters, mine is a late 2015 Z51 with PDR and Nav.

Internets_Ninja

Did you lose the drive mode selector in the menu?

monicatomokc

Flame Red; I received your PM with the questions and since you asked here as well, I will respond here for all to see.

First, I have a 2014 Stingray Convertible, 1LT, without the Z51 option, that did not come with Nav, PDR was not available in 2014, and no mag-ride. Only 5 options:
Carbon Flash Hood Stripe
Custom Caliper Color - Red
Z51 Style Spoiler-Carbon Flash
Exhaust, Multi-Mode Performance
Battery Protection Package

I purchased this HMI kit:
https://www.ebay.com/itm/14-15-FACTO...item33bb0f17a2

You'll notice that they no longer show this as compatible for the 2014/2015 Corvette and I assume this is because they discovered later that several of the features/functions (talked about in this thread) were lost for those with the Z51 option and the 2015 Z06.

Here is my experience that I posted back in 2016 that pushed me into doing all this:
https://www.corvetteforum.com/forums...l-for-nav.html

Good luck and if you have any more questions, feel free to ask.

Tom S.