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Discussion Starter #1 (Edited)
problems-center-lcd-screen-photo-.jpg

This was our first indication that there might be a problem with the touch screen for some owners. There have been several attempts by dealers to replace these screens only to have the problem return. We can expect some new word on GM's progress in sorting out this issue this month. Keep your eyes open for updates, and we will update this thread as soon as we receive new information.

Look below for new information.
 

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Discussion Starter #2
I have been looking for any indication that some progress has been made on this issue, but so far I have not been able to find out anything. If a solution is going to be available this month, they better hurry.
 

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Discussion Starter #3
I am not sure this constitutes an update or not, but I 've seen that an owner had his car in for the "dim lights" ecm reflash and wanted to know (from his dealer) if his infotainment screen issue had been resolved. His dealer checked with GM and they were told to replace his screen. It is not clear if this will be a "new" updated screen or just a replacement of the original one? Otherwise I have not heard a word and Feb. has come and gone.
 

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Discussion Starter #6
I found that a owner took his car in and this was on his service invoice.
"Customer states the display will roll and go black.
Checked. Found PIC 5934A. Radio control panel internal failure.
Per TAC replaced the radio control panel."

The indicated PIC # (5934A) has a "A" suffix which does not exist in the PIC in the notice in thread #1. (PIC 5934) It is not clear if the replacement screen that went into this customers car was a "new" part or just a replacement?
 

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Discussion Starter #7 (Edited)
This looks to be a possible fix for some infotainment screen issues: Dated Feb. 2014
"Blank Touch Screen after Start-up and in Reverse
The infotainment touch screen may be blank after start-up and in Reverse, a rearview camera message may be displayed, and there may be Bluetooth® and navigation system conditions on the following models equipped with radio-infotainment system RPOs IO4, IO5, IO6 or RAO
(except with RPO UPF):
• 2014 LaCrosse built prior to
September 24, 2013
• 2014 Regal built prior to
August 26, 2013
• 2013-2014 ATS built prior to
September 23, 2013
• 2013-2014 SRX built prior to
September 12, 2013
• 2013-2014 XTS built prior to
August 21, 2013
• 2014 CTS Sedan (VIN A) built prior to September 23, 2013
2014 Corvette built prior to August 5, 2013
• 2014 Impala (VIN 1)
• 2014 Silverado 1500 built prior to
October 1, 2013
• 2014 Sierra 1500 built prior to
October 1, 2013
Some possible Bluetooth conditions include the screen not returning to the Home screen after ending a call, cannot call contact work/mobile number for more than one contact with the same name, and issues concerning speech recognition.
Some navigation conditions include no results found after performing an address search with an incomplete address, the selection of a Point of Interest address delivers a wrong destination position, and the map freezing when panning in the 10k zoom scale.
An updated software calibration has been released to address these conditions.
Update the Human Machine Interface (HMI) module using a USB flash drive and the Service Programming System with the files available on TIS2Web.
TIP: The USB flash drive programming event requires a USB 2.0 flash drive with a minimum capacity requirement of 4 GB. The software downloaded to the USB flash drive can be used to update all applicable vehicles.
After USB programming has been completed, reprogram the HMI module using the Service Programming System with the latest calibrations available on TIS2Web and then clear any DTCs.
TIP: The vehicle modules must go to sleep for five minutes after programming the HMI module. If not, the vehicle may have a blank screen, no sound, no touch response, or the wrong splash screen may appear on the screen. If this happens, turn off the vehicle and wait the required five minutes before starting the vehicle again.
For RPO IO5, there was a production change in the software that changes the Navigation icon display to the Navigation OnStar icon display."
 

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Discussion Starter #8
Update for PIC5934

PIC5934B
I received an update for this issue from Hot wheels65:
"I have this problem and have searched the forums for an update to your original post showing a copy of PIC5934. I subscribe to ALLDATADIY.com and found update PIC5934B listed . It states the fix is to replace the radio display with a part #23476338 radio display using labor operation 3430990. I will be taking our car in for repair later this week."

Thanks for the update Dennis!
 
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