PIC6425C

Bulletin No.: PIC6425C
Published date: N/A
Preliminary Information
PIC6425C Radio Software Related Concerns
Models
Brand:
Model:
Model Years:
VIN:
from
Engine:
to
Transmissions:
Buick
Envision
2021
All
All
All
All
Cadillac
XT4
2021
All
All
All
All
Cadillac
XT6
2021
All
All
All
All
Chevrolet
Blazer
2021
All
All
All
All
Chevrolet
Camaro
2021
All
All
All
All
Chevrolet
Malibu
2021
All
All
All
All
Chevrolet
Silverado
2021
All
All
All
All
GMC
Acadia
2021
All
All
All
All
GMC
Sierra
2021
All
All
All
All
Involved Region or Country North America
Additional Options (RPO)
Condition
Cause
Equipped With Infotainment Systems IOS, IOU, or IOT
Some customers may comment on software issues.
Continuous improvement software updates are being developed with
improvements made in several areas.
Some customers with involved radios using software versions less than V152 may
comment on any combination of software issues listed below.
There were two updates released in Production very close to each other.
Some vehicles may have been manufactured with a software version of V152 or less,
while newer vehicle builds may have V153 loaded.
Refer to the appropriate Most Notable Improvements section below based on the
vehicle’s current software version.
The cause of the condition may be software anomalies.
Correction:
Do not replace parts for these conditions. Verify the radio software is on the latest available by checking Techline
Connect (TLC) for updated USB File Transfer software packages. The next software release is in development and
should be available in the later portion of the rst quarter of 2021. This PI will be replaced with a service bulletin
once the new software becomes available.
Important: The software improvements listed will vary by software version, vehicle model,
build configuration, system, and sales region. Not all vehicles have all features. The versions
are listed separately in this PI because some models may be waiting on V152, while others
may have V152 from Production but waiting on V153. As usual, any future software version
releases would include all enhancements from previous software version releases.
V152 Most Notable Improvements:
Audio and Media
•
Favorites jumps back to page 1 when attempting to scroll to or past page 3
•
Remove unnecessary Settings button from third-party audio app
•
Loss of audio after use of Android Auto voice recognition
•
Apple CarPlay voice commands play on all speakers
•
Steering Wheel Control Favorites button inoperative for entire drive cycle
•
Audio Favorite selection will flash back from recently selected to previously played
selection
Camera
•
Camera view may overlap Home screen after Automatic Park Assist (APA) is cancelled
•
The APA Exit Park button displays when vehicle is stopped despite the system
requesting the button be disabled
Energy App
•
Home or Away Target Charge Level (TCL) changes to minimum value when opposite
TCL value is changed
•
Radio displays incorrect text when Fast Charge TCL is set at or less than 80% (Time
remaining is displayed correctly)
•
Radio may not display “stop charging at any time” or “using station power for battery
conditions to preserve battery energy for range” during the Thermal Conditioning Only mode
•
Radio displays time to complete charge value too soon, causing highly inaccurate
display times
•
Location-Based Charging may not display the current location when entering the TCL
or Displayed Charging Time screens while signed into a User Profile
•
Energy App crashes after using the Stop button in the Energy App
•
Energy App will not reconnect if phone app is closed while phone is connected to the
vehicle unless phone is disconnected and reconnected
•
Text overlaps on the main screen for status, start and completion times after
performing some actions in the Charging Options
•
Utility rate charging schedules or season dates are not populated or app crashes
•
Delayed Charging text issues with “Charging will begin at:”
•
Incorrectly displays “Default Charge Mode Enabled” at wake up
•
Energy App slow performance or no response to up/down arrows after wake-up
HMI
•
Buick emblem is not round
•
“Feature unavailable while driving” message displayed for some restricted actions
although passenger is present
•
TTY button may not switch out of hearing mode if multiple users exist with different
TTY modes
•
Average Fuel Economy in Trailering app does not match IPC
IPC Interface
•
Some RDS text appears out of position
•
Visual updates to remote HMI for OnStar, navigation, audio, phone, and voice
recognition interface
•
DIC text could be cutoff at top or bottom of display
Phone
•
Robotic voice for phone calls
•
Phone number and call time off center when making a call to non-contact number
Sirius XM
•
Blank Sirius XM Favorite
•
Displays “loading” until channel up
•
Displays “This favorite is not available” when vehicle is started on SXM channel that
is not a Favorite
•
No Favorite or an incorrect Favorite is highlighted
•
Unable to save an SXM Favorite with long press
•
In accessory power mode, a loss of SXM audio until another SXM station is selected
•
Metadata missing or greyed out while using OnStar Turn by Turn in audio view
•
SXM crashes but the rest of the Audio app works
•
Channel playing and channel displayed do not match
•
Tune does not function as expected when using steering wheel controls or hard
buttons
•
Displays “something went wrong” after a remote start on SXM
System
•
System does not retain power mode selection over ignition cycles
•
Screen stuck on brand splash animation for entire ignition cycle
•
Display screen goes black instead of displaying account is locked after 5 incorrect
password entries
Navigation
•
HUD may not show a street name if the name field is only one line unless it is an exit
number
•
Unable to start or view active route guidance using steering wheel controls
•
view
Vehicle position indicator is incorrect when switching from nav app (full map) to porch
•
Overspeed Camera Zone Alert icon remains active after passing the camera zone
•
Navigation keyboard disappears after ending a call
•
DIC Navigation page may truncate Recent or Favorite destination
•
In addition to current lane, sharp curve alert of the opposite lane is also shown
•
First road name on a route is not displayed in the HUD
•
Predictive navigation may show incorrect traffic status
•
Time-restricted maneuvers may not be included in route guidance calculation
•
(Non-GMNA) Toll cost displayed is incorrect
•
(Non-GMNA) POI names not recognized for non-state-based countries
•
(Non-GMNA) No EV charging stations displayed in the hot categories in Korea
•
(Non-GMNA) DIC navigation page does not display street names in Korean
Translation (Non-GMNA)
•
When using voice recognition “my media” was not translated to other languages
•
Correct Chinese translation of high sensitivity in Air Quality Sensor settings
•
Changing from Chinese to English, the OnStar icon, Apps notifications block, and SD
Card Eject remains in Chinese
•
Missing period in Chinese for Advanced Lighting description
•
Action Unavailable displays in English instead of Chinese when attempting to change a
song while in a phone call
•
Change Korean translation of Teen Driver to My Driving Coach
•
Utility Season Date display missing Korean translation for Energy App
•
Missing period and line break in Korean on date of check in Settings > Updates
•
CarPlay Privacy Consent incorrect Korean translation
•
Incorrect spelling of Disabled in Portuguese
•
Poor grammar of the Portuguese translation of taking your eyes off the road warning
message
•
If a customer declines Terms and Conditions in Spanish when attempting to connect a
WiFi device, the phrase that appears next is incomplete
Voice Recognition
•
Unable to tune to FM station
Wireless Projection
•
Robotic voice after muting and unmuting calls
•
Radio display freezes while playing Spotify
•
Apple CarPlay not available or loses connection
•
CarPlay audio is unintelligible during phone call
V153 Most Notable Improvements:
Automated Mapping Module
(Non-GMNA) Does not connect to server in China
Advanced Parking Assist
•
Screen freezes when searching for a parking spot
•
Message to apply parking brake appears at incorrect time
Audio and Media
•
When navigation prompt is playing and user attempts to adjust volume, the Audio
volume adjusts instead
•
Switching from Bluetooth streamed audio to an OnStar call, the Bluetooth audio
volume increases for a short time before the OnStar ring tone is heard
•
Radio may not switch to selected Favorite
•
Improve vehicle graphics in Fade/Balance page
•
Forward/Skip hard buttons change source while listening to SXM
•
Loss of radio audio for entire drive cycle, chimes still function
•
Unable to complete indexing of media when using iPhone as a USB playback device
(not in CarPlay)
•
(Non-GMNA) iPhone using Baidu CarLife may display connection status incorrectly
Energy App
•
Improve Energy History graph display
•
Incorrect Battery Gauge state of charge
•
Improve main charging screen functionality
•
Bottom of Charging setting pull down is not displayed
•
Must press Save twice for Delayed Charge, or when removing the Home location from
Location Based Charging menu
HMI
•
Improve multi-function controller interface
•
Message pops up to switch to V-Mode or My Mode
•
Device Remote Access has different font styles on the same page
•
Cellular signal status displayed in Non-Connected countries
•
Low resolution of startup splash animation
•
Improved Air Quality status bar behavior
•
Climate app has a delayed opening from the pop-up banner
IPC Interface
•
Both Cancel and OK are highlighted when selecting an HD Favorite through steering
wheel controls while HD is turned off
•
DIC displays “Loading” and the steering wheel controls are non-responsive if the
other person ends the call as the user is opening the DIC phone menu
•
DIC menu flashes twice at times when scrolling through DIC media menus
•
Head Up Display (HUD) shows OnStar or Phone information overlapping displayed
values
•
IPC Help information may not display properly
•
HUD continues to display OnStar call or Emergency call after the call has ended
•
HUD may not display song information playing through Android Auto
•
A comma in a Contact phone number may display as “ext.” instead of “,” in the DIC
•
IPC is missing graphic for MyMedia when MyMedia is playing
•
“Press Handset to switch call to phone” shows both options selected or deselected at
the same time
•
“Press Handset to switch call to phone” may be truncated in display
Over-the-Air Update
•
First attempt to install an OTA may fail, second attempt is successful but could cause
a battery drain
•
Display may go black, flash, or back to the Update Available screen five seconds after
selecting Install
•
Display shows update failed after pressing power button although update was
successful
•
Display is black instead of showing Update Available screen
Rear Seat Infotainment
•
Change text for Miracast and Bluetooth headphones to avoid confusion over
functionality
•
Muted text is overlapping
•
Audio page shows “Unreadable Device” instead of “No Content Available”
•
Screen flash at times when reconnecting a Media Transfer Protocol (MTP) device
Phone
•
Apple device audio playback improvement
Sirius XM
•
SXM Browse does not display “action unavailable while driving”
System
•
Performance Data Recorder robustness enhancements
•
Cannot exit/unlock Valet mode
•
OnStar phone can be selected as Outgoing and Incoming phone in device manager
•
Radio displays incorrect driver mode control visualization screen
•
Drive mode popup displays when it is turned off
•
Rename Favorite page displays abnormally
•
Screen flashes when changing from Seat Massage to Home page
•
Radio using software V152 may freeze
Navigation
•
HUD navigation arrows cut off
•
Korean street names truncated
•
Tight Turn and Next Turn text are in wrong locations
•
Missing some content in Highway mode
•
view
Main navigation menu still displays old route after using X in the destination detail
•
Turn by Turn shows previous information after a stop during the trip
•
Day and Night theme may not switch properly at times
•
Missing lane guidance or turn arrow
•
Blank IPC during navigation
•
Setup Home does not appear after Terms and Conditions are accepted
Translation (Non-GMNA)
•
Errors in Energy app translations
•
My Mode configuration title incorrect in Chinese
•
“Day” is missing from Energy-Charging Settings screen
•
Camera app did not translate “check your mirrors for safety” into Chinese
•
Settings did not translate “request denied” into Chinese
•
Consent pop-up did not translate “granting access allows %s to:” into Chinese
WiFi
•
Home screen task bar does not display 4GLTE
•
Very rarely an external device can connect to WiFi but have no internet access
Wireless Projection
•
Radio freezes during phone call
•
Displays “contacts still loading” when using voice recognition
•
No incoming call ring tone
•
Switch to CarPlay, the radio and DIC show phone as Audio source, but radio is still
playing previous audio selection (e.g. SXM)
•
CarPlay display goes black when a call is ended
•
CarPlay displays continuous “loading” circle, screen goes black, and/or phone does
not connect
•
CarPlay displays “Keyboard access limited” and will not load Google Maps destination
•
CarPlay is unable to initiate a phone call from navigation POI
•
Android Auto cuts off navigation prompts
Service Procedure
Important: It is important to ensure that the technician is inspecting the full information found within Build
Number and not other rows of information on the same screen. This requires the user to locate the Build
Number, and then select the Information icon (circled lower-case i) to see the full software version le name. In
these radios, the build number may begin with a letter other than “V” but this is NOT the software version and is
not unique to the software release.
Important: After pressing the information icon, review the full software version le name. In the middle of this
long le name you may see the V152 (numerically lower if the radio is not up to date, or numerically higher if
newer versions were released and installed).
1.
Inspect the current radio software version. Navigate to Settings -> About -> Build Number -> Information
icon to view and verify the software version.
2.
If no updates exist for the vehicle being diagnosed, please advise the customer that GM is working on a
future software release that makes the above listed improvements and that we anticipate the update should be
available during the later portion of the rst quarter of 2021.
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following
labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage
information.
Labor Operation
2887118
Description
Labor Time
Verify Radio Is On Currently Available software version
0.3 Hrs.
*This is a unique Labor Operation for Bulletin use only.
Version History
Version
Modi ed
4
12/22/2020 - PIC6425 Created on.
12/23/2020 - Updated Condition.
01/26/2021 - Updated to add pending software enhancements and updated
labor operation.
03/16/2021 - Updated to remove models.
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