21-NA-091

Bulletin No.:
Service Bulletin
Date:
21-NA-091
February, 2023
INFORMATION
Subject:
Information on Normal Camera Display Operation - Flashing Diamond - Spot - or UFO
like Image on Camera Display
This bulletin replaces PIT5799A. Please discard PIT5799A.
Brand:
Model:
Model Year:
from
CT4
VIN:
to
from
to
—
—
Engine:
Transmission:
—
—
2020
CT5
Cadillac
Escalade
2020
2021
Escalade
ESV
XT4
2023
Bolt EV
2020
Corvette
2021
Silverado
1500
Chevrolet
Silverado
2500HD/
3500HD
2020
2022
Tahoe
2021
Suburban
Sierra 1500
GMC
Sierra
2500HD/
3500HD
2021
2020
Yukon
Yukon XL
2022
2021
Involved Region or Country
North America, Brazil, Chile, Colombia, Ecuador, Paraguay, Peru, Europe, Uzbekistan,
Middle East, Israel, Palestine, Japan, GM Korea Company, Cadillac Korea (South
Korea), Australia/New Zealand
Additional Options (RPOs)
Equipped with UVI, UVS, UV2, or UVA
Condition
Some customers may comment on a flashing light present on the radio display with the
camera on, usually is corrected by an ignition cycle.
Copyright 2023 General Motors LLC. All Rights Reserved.
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February, 2023
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February, 2023
Bulletin No.: 21-NA-091
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Correction
Please communicate to the customer that the camera system and radio display are
functioning as designed and this is a normal condition of their vehicle. Please share this
information with the customer, including a copy of this bulletin.
Technicians should verify that no other conditions are present and return the vehicle to
the customer.
Version
4
Modified
Released April 13, 2021
Revised May 03, 2021 – Added the Cadillac XT4 and updated the Involved Region or
Country section.
Revised November 17, 2021 – Added the 2022 Model Year to the Silverado 2500HD/
3500HD and Sierra 2500HD/3500HD models.
Revised January 30, 2023 – Removed Rearview from Subject, added the 2022–2023
Model Year to Cadillac XT4, updated the Involved Region or Country section, added UVA
to Additional Options (RPOs) section, revised Condition and Correction sections.
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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