18-NA-050

Bulletin No.:
Service Bulletin
Date:
18-NA-050
February, 2023
INFORMATION
Subject:
Information on Back Up Camera Display Does Not Cover Entire Screen
Brand:
Model:
Chevrolet
Bolt EV
Opel
Ampera-e
Model Year:
from
2018
VIN:
to
2021
2019
from
to
—
—
Engine:
Transmission:
—
—
Involved Region or Country
North America, Korea, Middle East, Europe
Additional Options (RPOs)
IOB (RADIO-INFOTAINMENT SYSTEM - MIDLEVEL HMI, MIDLEVEL CONNECTIVITY)
UVB (VISION-REAR VIEW, MONO, ANALOG)
UVC (VISION-REAR VIEW, MONO, ANALOG)
UVH (VISION-360 VIEW, MONO, ANALOG)
Condition
Some customers may comment that when the vehicle is shifted into Reverse, the back up
camera display does not cover the entire screen.
Information
4968958
Note: The graphic above depicts a UVH model. A UVC model is similar.
This condition may be caused by an early phase of the ignition cycle and the radio in
boot-up sequence. If the user shifts quickly into Reverse during this time, the radio is not
fully functional and may trigger the “BYPASS” mode. When the BYPASS mode is
enabled, the rear camera video image is re-directed to the display only showing a smaller
image (2). When the driver shifts out of Reverse, the radio has processed the boot-up
sequence and resets the BYPASS, returning the image back to full screen (1) when
shifted back into Reverse.
Copyright 2023 General Motors LLC. All Rights Reserved.
Page 2
February, 2023
Bulletin No.: 18-NA-050
4969135
Note: The graphic above depicts a UVC model. A UVH model depicts an image of a car.
During full screen operation, some screens may display a blank area on the left side of
the image. This design is intended to prevent any obstructed viewing past the steering
wheel.
Do Not replace the radio for these concerns. Please communicate to the customer this
condition is a normal operating characteristic of their vehicle. It will not impact the
designed performance or reliability of the vehicle. Please share this information with the
customer, including a copy of this message.
Parts Information
No parts are required for this repair.
Version
3
Modified
Released February 16, 2018
Revised July 11, 2019 – Added the 2019 and 2020 Model Years to Bolt EV and 2019 MY
to Ampera-e.
Revised February 15, 2023 – Added the 2021 Model Year to Bolt EV and UVB to
Additional Options (RPOs) section.
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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