20NA054

Bulletin No.:
Service Bulletin
Date:
20-NA-054
March, 2020
INFORMATION
Subject:
Rear View Camera Guidance Lines Dim After Radio Replacement or Programming
Brand:
Model:
Cadillac
CTS
Model Year:
VIN:
from
to
2018
2019
2018
2018
from
to
Engine:
Transmission:
ATS
XTS
GMC
Terrain
Involved Region or Country
North America
Additional Options (RPOs)
Equipped with Infotainment system IOS, IOT, or IOU
Some customers, after having radio replacement or radio reprogramming, may report that
the Rear-View Camera (RVC) guidance lines are not as bold as previously viewed, that
they are faint, see-through, thinner, dim, or translucent; and they used to be more visible.
A comparison between similar vehicle models may, or may not, show a difference in rear
view camera guidance line appearance.
Original design:
Condition
5525912
New design:
Copyright 2020 General Motors LLC. All Rights Reserved.
Page 2
March, 2020
Bulletin No.: 20-NA-054
5525914
Cause
This may be caused by installing calibration files released in mid-2018 during radio
replacement or reprogramming of the radio. The change to increase translucency was
done to prevent the lines from obstructing objects in the field-of-view.
Correction
Do not attempt repairs. The thinner, lighter appearance of RVC guidance lines is
operating to design intent.
Version
1
Modified
Released March 03, 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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