20NA130

Service Bulletin
Bulletin No.:
20-NA-130
Date:
July, 2020
INFORMATION
Subject:
Information on Message Illuminated in DIC, DTC B094C (39) Set
Brand:
Model:
Chevrolet
Bolt EV
Model Year:
VIN:
from
to
from
to
2019
2020
—
—
Engine:
Transmission:
All
All
Involved Region or Country
North America, Europe, Middle East, GM Korea Company
Condition
Some customers may comment on a message illuminated in the DIC.
A technician may find DTC B094C (39) - Right Side Driver Assistance Systems set.
Cause
The cause of the condition may be corrosion in the LED wiring harness connection in the
right outside rearview mirror.
Correction
Upon verifying the condition, follow the appropriate direction and steps in the Service
Procedure below.
Service Procedure
4533897
Copyright 2020 General Motors LLC. All Rights Reserved.
Page 2
July, 2020
Bulletin No.: 20-NA-130
1. Remove the right outside rearview mirror housing
bezel (2). Refer to Outside Rearview Mirror
Housing Bezel Replacement in SI.
4811651
2. Inspect the LED circuit in the mirror for corrosion.
Refer to Rear Cross Traffic Alert (UFG) and Side
Object Detection (UKC) (Document ID #4817118)
in SI.
• If any corrosion IS found, it will be necessary to
replace the mirror assembly. Refer to Outside
Rearview Mirror Replacement in SI.
• If NO corrosion is found, reinstall the mirror and
follow the DTC B094C diagnostics referenced
in SI.
Parts Information
Use the VIN and refer to the GM Electronic Parts
Catalog (EPC) to determine the proper part to order.
Causal
Part
Description
Part
Number
Qty
42553500
42736385
X
MIRROR ASM-O/
S RR VIEW
42690694
42736379
42690697
42690696
1
Bulletin No.: 20-NA-130
July, 2020
Page 3
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
Description
Labor Time
2050220
Outside Rearview Mirror
Replacement
Use
Published
Labor
Operation
Time
Version
1
Modified
Released July 15, 2020
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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