NHTSA ID Number: 10201314
Manufacturer Communication Number: PIT5774B
TSB/Document Date: 2021-09-13
Summary
This Preliminary information communicates an issue with: Overhead Console Inoperative / Service Safety Restraints Message / Sunroof Inoperative / DTC's B1A7A and U1121. Dealers are to cycle the power to the overhead console to correct the issue. Engineering has released updated roof consoles to correct this concern. Dealers are to replace the roof console.?
Bulletin No.: PIT5774B
Published date: N/A
Preliminary Information
PIT5774B Overhead Roof Console Inoperative / Service Safety
Restraints Message / Sunroof Inoperative / Dome Lights
Inoperative / DTCs B1A7A and U1121
Models
Brand:
Model:
Model Years:
VIN:
from
Engine:
to
Transmissions:
Suburban
2021
All
All
All
All
Tahoe
2021
All
All
All
All
Yukon Models
2021
All
All
All
All
Involved Region or Country North America
Some customers may comment on the following complaints:
- Service Safety Restraints System Message
- Sunroof Inoperative
- Sunshade Lights Inoperative
- Dome Lights Inoperative
- Power Liftgate Inoperative when using switch in overhead console
Condition
When the vehicle is checked for DTC's there will be a current U1121 set in the BCM
and B1A7A set in the Restraints Module.
Cause
The cause of these concerns could be the Roof Console A103.
Correction:
Engineering has released updated Roof Consoles to correct these concerns. Replace the A103 Roof Console with
an updated part number listed in the parts section below.
Parts Information
Part Number
85164174
Description
Roof Console - Black
QTY
1
85164173
85164172
Roof Console - Dk Atmosphere
Roof Console - Gideon
1
1
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
Description
Time
1035580
Roof Console Replacement
Use published time
Version History
Version
Modi ed
3
09/14/2020 - Created on.
07/26/2021 - Updated to Cause, Correction, Parts, and Warranty sections
8/16/2021 - Updated to correct part numbers.
© 2021 General Motors
. All Rights Reserved.
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TSB/Document ID: PIT5774B
Replacement Service Bulletin Number:
MFR Communication Date: 2021-08-16
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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