Touch screen erratic behavior 2018

[Becrotteau]

Our touchscreen has started to have a mind of its own . Not sure why ? Can anyone help
with this ?

 

[Mojo88]

Many possible reasons. Try a battery disconnect, leave it for 15 minutes or even overnight, that's a good first start.

 

[Dean2]

Mojo is right. Next step, see if the screen is beginning to delaminate. Long time issue and it causes erratic behaviour.

 

[Becrotteau]

it does seem to be delaminating. What are the options ?

 

[Dean2]

it does seem to be delaminating. What are the options ?

Search uconnect screen delamination on here. You will find a ton of info that will help.

 

[SitKneelBend]

it does seem to be delaminating. What are the options ?

If it's not bad you can try keeping it cooler to stop the ghost touching. Otherwise screen replacement for $80-$250. It's not difficult to replace the screen and I'm happy to walk you through it .

 

[Becrotteau]

Can you point us in a direction to get a new screen ? Clueless on what to look for .

 

[SitKneelBend]

Can you point us in a direction to get a new screen ? Clueless on what to look for .

Their are three revisions

SL01
SL02
SL03

The part number revised to correct delamination is LA084X01 SL03. Those cost the most. If you search for that number you will get all part numbers. Anything under $200 is likely not an SL03. There are also many counterfeit screens now that likely work but are not made by LG.

If you find one you think you want to buy, feel free to post the link here and I'll check the listing to tell you what it is

 

[Becrotteau]

Thank you .

 

[Becrotteau]

17-20 Replacement 8.4" Uconnect 4C UAQ LCD Display Touch Screen Radio Navigation | eBay

BOTH MODELS INTERCHANGE WITH EACH OTHER. THIS NUMBER IS FOUND ON THE BACK OF YOUR LCD. NO PROGRAMMING REQUIRED, THESE SCREENS ARE PLUG AND PLAY. Dodge Challenger. Chrysler 200 300. RAM 1500 2500 3500 Chassis Cab.

www.ebay.com

 

[Johnny Paycheck]

Having been at that ghost touch point, just toss the digitizer in the trash. It’s overheated long enough that your fingers have been imprinted into it.

 

[SitKneelBend]

Having been at that ghost touch point, just toss the digitizer in the trash. It’s overheated long enough that your fingers have been imprinted into it.

Ah! Is that how that works? The most commonly touched areas are what triggers at failure? Makes sense...

 

[SitKneelBend]

17-20 Replacement 8.4" Uconnect 4C UAQ LCD Display Touch Screen Radio Navigation | eBay

BOTH MODELS INTERCHANGE WITH EACH OTHER. THIS NUMBER IS FOUND ON THE BACK OF YOUR LCD. NO PROGRAMMING REQUIRED, THESE SCREENS ARE PLUG AND PLAY. Dodge Challenger. Chrysler 200 300. RAM 1500 2500 3500 Chassis Cab.

www.ebay.com

That looks like a good genuine LG part (the knock offs have weird conterfeity white labels on the back that are meant to look like the LG label but aren't). If I were looking for an SL03, I would buy what you found.

 

[nlambert182]

Having been at that ghost touch point, just toss the digitizer in the trash. It’s overheated long enough that your fingers have been imprinted into it.

So just take it off and rock on?

Replacing the screen is the only "easy" fix. It will come with the digitizer. It isn't worth trying to just replace that piece. Removing all the glue is a lesson in futility.

 

[SitKneelBend]

So just take it off and rock on?

Replacing the screen is the only "easy" fix. It will come with the digitizer. It isn't worth trying to just replace that piece. Removing all the glue is a lesson in futility.

Agreed, I've done it myself and getting it to look right after curing is a job for the factory.