20NA105

Bulletin No.:
Service Bulletin
Date:
20-NA-105
January, 2021
TECHNICAL
Subject:
360 Camera Views go Blank with Tailgate Removed
Brand:
Model:
Chevrolet
GMC
Model Year:
from
to
Silverado 2500HD/
3500HD
2020
2021
Sierra 2500HD/
3500HD
2020
2021
VIN:
from
Involved Region or Country
United States, Canada, Mexico
Additional Options (RPOs)
Equipped with RPO UVS
Engine:
Transmission:
All
All
to
Some customers may comment that the 360° camera option (RPO UVS) will lose all
camera views when the tailgate is removed.
Condition
5608080
This is commonly done by customers who use slide in campers or a low clearance
tailgate when pulling fifth wheel trailers
Cause
Copyright 2021 General Motors LLC. All Rights Reserved.
The cause of the condition may be that the camera system alerts the customer to a rear
camera issue by disabling all camera views if the rear camera is disabled.
Page 2
January, 2021
Bulletin No.: 20-NA-105
Important: This repair is a costumer pay alteration.
All work and payment, authorization must come from the customer.
Correction
For customers who remove the rear tailgate for use with a slide in camper or for
clearance for a 5th wheel trailer, a jumper can be installed that will provide usage of the
side and front camera. The rear camera view will be blacked out. The following steps
must be performed to re-enable the remaining camera views without the tailgate/camera
being presently installed.
Service Procedure
Dealers can order a tailgate harness (P/N 84679989)
and camera (P/N 84676845) that plug into the vehicle
harness. This will provide the rear camera input that the
system needs to activate the front and side cameras
The camera on the jumper harness will need to have
the lens blocked by black paint and electrical tape so
the view will not provide a false image to the driver (see
pictures).
5608081
Bulletin No.: 20-NA-105
January, 2021
Page 3
The harness will need to be plugged into the vehicle
harness, bundled and stowed under the bed with zip
ties and electrical tape (see picture).
5608161
Page 4
January, 2021
Bulletin No.: 20-NA-105
Note: When the jumper is installed the customer will
not have the gridlines when in reverse and may notice
an hourglass on the top corner of the screen.
Below are examples of camera views with the tailgate
equipped normally and tailgate removed with camera
covered.
Frontend view, Tailgate equipped
5608156
Bulletin No.: 20-NA-105
January, 2021
Page 5
Frontend view, Tailgate removed
5608157
Page 6
January, 2021
Bulletin No.: 20-NA-105
Tailgate backup camera, Tailgate equipped
5608082
Bulletin No.: 20-NA-105
January, 2021
Page 7
Tailgate backup camera, Tailgate removed
5608144
Page 8
January, 2021
Bulletin No.: 20-NA-105
Tailgate overhead camera, Tailgate equipped
5608152
Bulletin No.: 20-NA-105
January, 2021
Page 9
Tailgate overhead camera, Tailgate removed
5608153
Page 10
January, 2021
Bulletin No.: 20-NA-105
Trailer hitch camera, Tailgate equipped
5608159
Bulletin No.: 20-NA-105
January, 2021
Page 11
Trailer hitch camera, Tailgate removed
5608160
When the tailgate is reinstalled, the tailgate harness
must be reinstalled and the jumper must be removed to
provide 360 camera views.
Parts Information
Causal
Part
Description
Part
Number
Qty
X
HARNESS ASME/GATE WRG
84679989
1
84676845
1
X
CAMERA ASMRR VIEW
DRVR INFO
Version
2
Modified
Released June 17, 2020
Revised January 12, 2021– Added 2021 Model Years
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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