NHTSA ID Number: 10149061
Manufacturer Communication Number: PIT5630A
TSB/Document Date: 2018-11-26
Summary
This Preliminary information communicates the possible setting of B101D-39 in the OnStar module and advises of byte info to retrieve whileengineering completes further investigation.
Bulletin No.: PIT5630A
Published date: 10/30/2018
Preliminary Information
PIT5630A Intermittent OnStar Inoperative DTC B101D-39 Red LED
And Clock Date Time Inaccurate
Models
Brand:
Model:
Model Years:
VIN:
from
Engine:
to
Transmissions:
CT6
2019
All
All
All
All
XT4
2019
All
All
All
All
Camaro
2019
All
All
All
All
Colorado
2019
All
All
All
All
Cruze
2019
All
All
All
All
Equinox
2019
All
All
All
All
Silverado
2019
All
All
All
All
Spark
2019
All
All
All
All
Trax
2019
All
All
All
All
Volt
2019
All
All
All
All
Terrain
2019
All
All
All
All
Sierra
2019
All
All
All
All
Involved Region or Country North America
Additional Options (RPO)
Condition
Cause
BOP
While diagnosing a vehicle with an OnStar concern. A technicians may nd a Red Led
and DTC B101D-39 in the OnStar TCICM while checking for codes. Additional
symptoms may include; OnStar services temporarily unavailable, Date/time
inaccurate on the radio display, and Super Cruise unavailable (MY19 Cadillac
CT6 only) for an ignition cycle.
Engineering has found a software issue that will cause a temporary concern after
start up.
Correction:
If the DTC is current when the vehicle comes in, let the vehicle run for 5 minutes and see if the DTC goes to
history. If the DTC stays current, this PI does not apply. Continue with normal diagnostics.
If the DTC goes to history, select the following menu in GDS and verify the data from the TCICM.
Module Diagnostics/Telematics Communications Interface Control Module/Data Display/DTC Data
If DPID 11 Byte 1 is 20 and DPID 17 Byte 3 is 80, clear the DTC and do NOT replace the TCICM. This is a known
software issue, and new software is being developed to address the issue. This PI will be updated when the new
software is available.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be performed.
Customer Information
Please communicate to the customer that we apologize for this inconvenience and that General Motors is
working on a solution for this concern. Once a solution is available, this PI will be updated with additional details allowing dealership personnel to contact the customer to schedule a service appointment and repair the vehicle.
Warranty Information
Labor Operation
3480938
Description
Labor Time
OnStar B101D-39 Diagnostic Check
.3
*This is a unique Labor Operation for Bulletin use only.
Version History
Version
Modi ed
2
09/05/2018 Created on
10/26/2018 - Updated Condition Section and Add Models
© 2018 General Motors. All Rights Reserved.
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TSB/Document ID: PIT5630A
Replacement Service Bulletin Number:
MFR Communication Date: 2018-10-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
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