Bulletin No.: 24-NA-155

Service Bulletin

Date: August, 2024

TECHNICAL
Subject:

Radio Software Update Version is W38E-174.4.1-M170-SQBR5-180.4

This Service Bulletin replaces PIT6047, PIT6048, and PIT6174. Please discard PIT6047,
PIT6048, and PIT6174.

Brand:

Model:

Model Year:
from

to

Chevrolet

Colorado

2023

2023

GMC

Canyon

2023

2023

Involved Region or Country

VIN:
from

Engine:

Transmission:

to

North America, Middle East, Cadillac Korea (South Korea)

Additional Options (RPOs)
Condition

Some customers may comment on software related issues. Continuous improvement
software updates are being released with improvements made in several areas.

Cause

The causes of the condition may be software anomalies.

Correction

A new radio software update, version is W38E-174.4.1-M170-SQBR5-180.4, was
released to service for vehicles equipped with Infotainment system RPO IVD being
brought into the service department. In addition to providing general robustness and stability enhancements, this update includes all enhancements from previous software version releases. Along with the vehicles mentioned above; fleet customers may need the
dealer to reprogram the radio with the new software package.
Caution: to avoid potential programming errors, ensure both programming events (Programming and USB File Transfer) are performed.

Important: Improvements will vary by model, build
configuration, system, and sales region. Not all vehicles
have all features.
Most notable improvements contained in this release
may include:
Camera:
• The screen may go black when in a camera view
• Camera views may overlap
• Cargo Bed Camera is not mirrored
• Cargo Bed Camera may not be available
• False pedestrian notification on Rear View Camera
• Intermittently the Rear View Camera will show the
no camera icon
• May not be able to exit the camera app because
there is no menu or X button
• Rear View Camera may not work properly with
Quick Start Up on
• Rear View Camera always on

Copyright 2024 General Motors. All Rights Reserved.

• Rear View Camera will not work properly
• The camera may flicker
• The cameras may not work after a cold boot
• The heated seat screen may overlay the Rear
View Camera
• The Parking Assist may not show indicators
• The Rear View Camera may be slow to load
• The side camera angles may be incorrect
• When the radio loses the speed signal the camera
view will go away
• While using Automated Park Assist there may not
be a camera view
• Delayed camera screen
• Blank screen with grid lines
• Rear View Camera image freezes for a short
period
• Green screen

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August, 2024

• Front View Camera has Rear View Camera
viewing options
Displays:
• "Your Audio will be Muted" message for Teen
Driver doesn't display

Bulletin No.: 24-NA-155

• The vehicle ahead green telltale may overlap with
the speed info
• IPC and ICS info mismatch
• Cluster layout issues
• Blank Screens and/or Update Failed Screen after
low voltage/dead battery

• B1D73-04 may set in the radio, along with DTCs in
the BCM for the VCD

• Speedometer not updating

• Black screen

• Both displays black screen

• Drive mode titles and icons overlap

• No Touch Response on radio display

• Icon changes

• Display illumination improvements

• Not able to switch from Flow theme to V series
theme

• Cluster screen flickers

• Pop-up message may not have icons

• Delayed Cluster bring up

• Porch view may stop working

• Blank Cluster display with telltales

• Radio display may not dim at night

• PRND stuck on reverse

• SWC audio source change does not show on VCD

• eAWD telltale not activating

• The screen may be distorted when shifting from
Reverse to Drive

• Radio Display Illumination Too Dark Compared to
Cluster Display

• Volume bar listed as Navigation instead of Voice
for OnStar call

• Fuel Economy scale missing

• When switching from Driver to Guest, "tseuG"
shows on the status bar

• Black radio screen at startup

• Cannot remove Cluster Info tile
• HUD black screen for key cycle

• User may see "Update Failed. See dealer to
restore system" OR Black Screen

• CarPlay maps black screen on Cluster display

• Brightness adjustment may not change screen
brightness

• Offroad display stuck on

• Rear HVAC control screen may be brighter than
set

• Quickly switching between Cluster views causes
display failures/hang ups

• Radio hard buttons may not work
• Audio source list stuck on display

• (Cadillac only) Radio display flickers after using
MFC

• Audio unavailable message

• HUD not working after deep sleep

• Auto Start Stop icon overlaps speed when there is
a pop-up message

• Radio display loss of touch and erratic dimming

• Blank cluster display
• Cluster screen may freeze

• Speed Limit icon will not disappear when driver
setting set to Hide

• Map view may be slow to load

• IPC and HUD info mismatch

• DIC may overlap with gauge

• Cluster navigation option missing

• Navigation information may not show in Zone 3

• Blank Cluster display

• Cluster flickers

• Transmission temperature gauge color on Cluster
shows red hot when vehicle is within operating
temperature range

• Android icon pops up while switching cluster views
• Prevent ellipsis from showing on cluster
• Selected cluster view may not be saved after
vehicle shutdown
• Best fuel economy is blank
• Audio message appears over gauges when
creating new user profile

• HUD blank with radio setting B19B0
• HUD missing info and not responsive

• HUD settings not remembered

• Cluster reset
• Lane lines don't show colored in Cluster Assist
layout
• Navigation route on Cluster display is not still
shown after ignition cycle with STR
• Android System message at start up

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August, 2024

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• HUD shows cruise at "0" instead of "--" when no
speed is set

• Phone auto-connect not functioning after profile
change

• Vehicle info apps show "Add to Driver Display"
when already shown

• Incoming call alert not shown when in another call

• Display layout issues

• Android Auto shows wireless charging icon incorrectly

• Drive mode app flickers when changing modes

• Text messages pop up not shown in vehicle

• Pressing "Turn Off Display" can cause the display
to get stuck in a flickering/resetting cycle

• Bluetooth audio lost after voice assistant long
press

• Service Display message and loss of radio screen
and virtual controls

• "Add Phone" button not working

Stability:
• Lagging
• Radio may not fully shut down, but looks off
• Radio may reset while the camera views keep
being switched
• Slow bootup time
• Maps and/or audio app may crash
Phone:
• Removing the Text play buttons when Alexa is the
assistant
• Text messages might not be seen on display

• No sound when using Android Auto
• Call Ended shown incorrectly when disabling call
profile
• Phone pairing dialog pops up every key cycle
• Call timer shows negative value after call
reconnect
• Cannot launch Android Auto/Apple CarPlay
• Cannot repair Bluetooth devices
• Text message notification sound not heard
• CarPlay Siri does not work after SWC long press
radio reset
• Phone screen shows blank when canceling in
progress Bluetooth pairing

• When CarPlay is connected you can't access
Alexa

• Bluetooth audio start up volume too high

• With CarPlay the first phone call of every ignition
cycle will cause CarPlay to disconnect

• Bluetooth device listed twice in media

• Voice recognition pass through to the connected
phone may not work

• Bluetooth crashes when cable is unplugged
• Cannot pair device as pair mode stuck OFF
Virtual Controls:

• When trying to exit android auto, display goes
black

• Customer will be unable to rename garage door

• CarPlay disconnects when radio is off and
passthrough voice recognition is activated

• May not be able to exit the Virtual Controls app

• Phone app will not launch while wired android auto
is connected

• The Virtual Controls app can be opened with the
radio off

• Delete paired device confirmation appears twice

• The Virtual Controls app may not open

• Apple CarPlay and Android Auto will disconnect
after about 5 minutes

• Headlight controls may be covered by HVAC
controls

• When Bluetooth is not the audio source there is no
audio chime for incoming text messages

• Ride height adjustment may not work

• Wired Android Auto might reconnect instead of
Bluetooth
• Bluetooth may not reconnect
• Voice Recognition pass through has no audio
response
• An incoming Bluetooth call ringtone might have a
sound when answering
• CarPlay audio still through vehicle when toggled to
phone

• HVAC virtual controls might not work

• Virtual controls, such as headlights, may not work
Other Apps:
• The MyBrand app may not launch
• The Owner's Manual may have no information
• Park Assist does not function
• Tire pressure missing
• Trailer app may default to "lite" mode instead of full
mode, losing some options
• Vehicle model may not show on vehicle status
screen

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August, 2024

Bulletin No.: 24-NA-155

• Vehicle information app crashes when pressing
energy info

• Audio distorted

• Auto parking app will not show animations and
camera video feed

• No audio

• Teen Driver volume limit may not be consistent
from one key cycle to another

• Two sources playing audio at the same time

• Auto Park Assist tells the driver they have to shift
when they don't
Programming:
• After an OTA update, new features may not be
activated
• During USB updating the process might fail at the
21-minute mark

• Audio pauses during projection
• Possible noise on startup
• When switching to the MaxPower drive mode the
audio may stop
• While a traffic announcement comes in while using
voice recognition the audio bar name will show
Announcement
• Customer may hear turn signal chime/clack without
turn signal active
• No audio after phone call

• If a customer interrupts an OTA and dismisses the
message, every time they shift from Park to Drive
the message will return until the update is done

• At startup, Bluetooth audio is too loud

• Radio shows the old part number after
programming until it is rebooted

• Stability improvements.

• Radio stuck on How to Complete This Update
Screen after USB update

• Delayed RVC bring up.

• When updating from R3 to R5 any custom pages
will be lost

• Infotainment lockout while driving not working.

• Display goes black at 21 minutes remaining in
update

• Bad audio quality.

• No Bluetooth audio after starting Nav. Route
• RVC does not work or shows red triangle.
• Cannot launch Android Auto/Apple CarPlay.
• HVAC screen missing icons/text.

• Wrong firmware version could be displayed in
settings

• (Cadillac only) MFC press not functioning.

• "LCDD Data Provisioning failed" message after
attempting provisioning

• CarPlay black screen.

• The LCDD write can take too long

• Radio stays on Bluetooth instead of Android Auto/
Apple CarPlay.

• "Update Unsuccessful" message stuck on until full
sleep cycle.
• "Vehicle Software Updates are available" does not
show on every ignition.

• (Cadillac only) MFC focus issue.
• No audio.

• Virtual Controls not responding when pressed
during welcome animation.
• Add Phone button not responding.

• Radio screen shows no icons after programming.

• Welcome animation freezes.

• Speed limit shows dashes after SW update.

• Camera view selection not available.

• Blank screen during USB programming.

• Overspeed chime does not continuously play.

• USB recovery status bar shows on cluster display.

• Pop Up Window layout issues.

• Cannot enable Quick Start Up after USB Update.

• Welcome animation plays twice after quick door
open ignition on.

• No success pop up or record of USB updates
Radio:
• Battery drain from radio of 3A
• Radio may not leave Quick Start Up mode and go
to off
• Radio may not turn off when RAP is cancelled
• Radio thinks the vehicle is in Drive so customer is
unable to access pages where the vehicle must
be in Park
• The radio may not power back on

• Reset Trip not functioning.
• Add profile stuck loading.
• Universal Remote settings do not respond
correctly.
• Ambient Lighting app crashes.
• Ambient lighting app not working.
• Ambient Lighting missing audio selection
feedback.
• Forward camera exits at speeds lower than target
speed.

Bulletin No.: 24-NA-155

August, 2024

• Radio does not respond/freezes.

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