17NA097

Bulletin No.:
Service Bulletin
Date:
17-NA-097
October, 2020
TECHNICAL
Subject:
Side Blind Zone is Not Working Correctly and/or Incorrect Side Mirror Notification
Brand:
Model:
Chevrolet
Bolt EV
Opel/
Vauxhall
Ampera-e
Model Year:
from
VIN:
to
from
to
—
—
Engine:
Transmission:
—
—
2020
2017
2019
Involved Region or Country
North America, Europe, South Korea, Middle East
Additional Options (RPOs)
Equipped with Side Active Safety Obstacle Detection Enhanced (RPO UKC)
Condition
Some customers may comment when driving, the side mirror indicates there is a vehicle
present when there actually is not.
The technician may find one or more of the following conditions:
• Wiring harness to the sensors may not be properly connected or routed.
• Butyl tape not covering the sensor bracket completely.
• Butyl tape missing completely.
Cause
If the side blind zone has been found not working properly, inspect one or more of the
following areas:
• Butyl tape application at the sensor brackets.
• Sensor harness electrical connection and routing.
• Poor grounding at the G401 and/or G404 body ground.
Correction 1
4749843
Inspect the wiring harness electrical connectors for proper connections and routing.
Copyright 2020 General Motors LLC. All Rights Reserved.
4847139
Remove the G401 (2) and G404 (1) grounds. Clean and remove paint from contact
points.
Page 2
October, 2020
Bulletin No.: 17-NA-097
Correction 2
4749759
Important: The opening must be completely covered with the butyl tape to avoid
allowing unwanted radar reflection to be detected and triggering the false alerts.
Install a new single piece of aluminum butyl tape on the bottom of the object sensing alert
module brackets so the opening is completely covered by the tape.
Correction 3
Bulletin No.: 17-NA-097
October, 2020
Service Procedure
Page 3
• If the side blind zone and/or side mirror
indicators are not performing properly, continue
with procedure.
6. Remove the quarter lower rear trim panel. Refer to
Quarter Lower Rear Trim Panel Replacement in SI.
7. Remove the G401 and G404 electrical connector.
8. Inspect and remove any paint from the ground
contact points.
9. Torque the bolts to specifications. Refer to
Fastener Specifications in SI.
10. Install the quarter lower rear trim panel.
11. Update the side object sensor module using the
Service Programming System (SPS) with the latest
calibrations available on TIS2WEB. Refer to Side
Object Sensor Programming and Setup in SI.
If the side blind zone and/or side mirror indicators are
not performing properly, refer to SI for further
diagnostics.
Parts Information
Description
Part
Number
42563361
(LH)
TAPE-RR BPR
FASCIA EXTN
42563362
(RH)
Qty
1
Warranty Information
4847179
1. Raise the vehicle to its full height. Refer to Lifting
and Jacking the Vehicle in SI.
2. Inspect the side blind zone sensors (2) electrical
connector (1) for proper connection and routing of
the wiring harness (4).
3. Using Acrysol or equivalent, clean the bottom of
the module and allow to dry.
4. Peel the backing off of the aluminum butyl tape (3)
and apply to the bottom of the module.
5. Lower the vehicle.
• If the side blind zone and/or side mirror
indicators are performing properly, no further
work is required.
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
Labor Time
6480398*
Inspect Sensor Electrical
Connections and Apply
Butyl Tape to Both Object
Sensing Modules
0.4 hr
Add
Inspection and Cleaning of
G401 and G404 Ground
Contact Points
0.8 hr
Add
Side Object Sensor
Reprogramming with SPS
0.3 hr
*This is a unique Labor Operation for bulletin use only.
Version
5
Modified
August 16, 2017 – Added Vauxhall to models and wiring electrical connectors and ground
information.
November 14, 2017 – Added Side Object Sensor Module Programming and Setup
information.
August 10, 2018 – Added the 2018 and 2019 Model Years.
October 16, 2020 – Added 2020 Model Year to Bolt EV.
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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