NHTSA ID Number: 10181157
Manufacturer Communication Number: PIT5754
TSB/Document Date: 2020-10-19
Summary
This Preliminary information communicates information on radio software anamolies and future radio software updates to correct the concern.
Bulletin No.: PIT5754
Published date: 09/21/2020
Preliminary Information
PIT5754 Phone Contacts Not Loading, Sirius XM Displays XM Loading or Acquiring Signal
Message, FM Browse Inoperative, Android Auto May Not Auto Connect Bluetooth, Radio
and Display Inop After Remote Start
Models
Brand:
Model:
VIN:
Model Years:
from
Engine:
to
Transmissions:
Enclave
2020
All
All
All
All
Encore GX
2020
All
All
All
All
CT6
2020
All
All
All
All
XT4
2020
All
All
All
All
XT5
2020
All
All
All
All
XT6
2020
All
All
All
All
Blazer
2020
All
All
All
All
Camaro
2020
All
All
All
All
Silverado
2020
All
All
All
All
Silverado HD
2020
All
All
All
All
Trailblazer
2020
All
All
All
All
Traverse
2020
All
All
All
All
Acadia
2020
All
All
All
All
Sierra
2020
All
All
All
All
Sierra HD
2020
All
All
All
All
Involved Region or Country North America
Additional Options (RPO)
Condition
Cause
IOS, IOU, or IOT
Some customers may comment of intermittent concerns with any of the following symptoms:
Phone contacts may not fully download. This condition may vary with each drive cycle or each time Bluetooth
reconnects. Contacts may be missing, voice recognition (VR) may respond that it cannot nd the contact or may
indicate that no phone is connected even though the display shows connection is present.
Sirius XM displays XM Loading, or Acquiring Signal. (This is not the same issue described in PIT5737. If audio returns
by changing XM channels, then refer to PIT5737 for more details.)
When using Android Auto, the Bluetooth may not reconnect automatically.
Non-HD Radios (U2L or U2M) only - the FM Browse feature only lists the most recent FM station.
Radio and display inoperative after a remote start event.
These may be caused by software anomalies.
Correction:
Do not replace parts for these conditions. Engineering is working on future software releases to improve the operation.
Service Procedure
Note: If XM Audio returns by changing XM channels then this PI does not apply, please refer to PIT5737.
For Android Auto concern, connecting USB after starting the vehicle will provide a temporary workaround.
For radio inoperative, or excessive parasitic battery load from radio after a remote start event, pull the fuse powering the radio to reset this condition.
Verify the latest software available has been installed. Depending on how software was installed in the radio, it may appear di erently. It could display
W119E, U148, or V148.
1. Ignition on, press Home, Settings, About
2. Scroll to Build Number, press the information icon
If the software is U148/V148/W119E, take no further action. Advise the customer that GM engineering is working on a future software package to improve
the operation.
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
3487058
Description
Labor Time
Verify radio software version U148
*This is a unique Labor Operation for Bulletin use only.
Version History
Version
Modi ed
1
06/18/2020 - Created on
© 2020 General Motors
. All Rights Reserved.
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TSB/Document ID: PIT5754
Replacement Service Bulletin Number:
MFR Communication Date: 2020-09-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT
MFR Component System:
MFR Component Subsystem:
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