20NA235

Bulletin No.:
Service Bulletin
Date:
20-NA-235
December, 2020
INFORMATION
Subject:
Brand:
Buick
Cadillac
Chevrolet
Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/
Disinfecting Display
Model:
Model Year:
from
Enclave
2020
Encore GX
2020
LaCrosse
2020
Regal
2019
Verano
2020
CT4
2020
CT5
2020
CT6
2019
Escalade
Escalade
ESV
2021
XT4
2019
XT6
2020
Blazer
2019
Bolt EV
2021
Camaro
2019
Colorado
2019
Corvette
2020
VIN:
Transmission:
—
—
—
—
—
—
—
—
—
—
—
from
to
2021
—
2021
2021
Cruze
2020
Equinox
2019
2019
Malibu
2020
2021
Silverado
1500 (New
Model)
2019
2019
Silverado
1500
2020
Suburban
2021
Tahoe
2021
Traverse
2020
Volt
2019
Copyright 2020 General Motors LLC. All Rights Reserved.
Engine:
to
2021
Page 2
Brand:
GMC
December, 2020
Model:
from
VIN:
to
Acadia
2019
Canyon
2019
Sierra 1500
(New Model)
2019
2019
Sierra 1500
2020
2021
Terrain
2019
2019
2021
2021
Yukon
Yukon XL
Holden
Model Year:
Bulletin No.: 20-NA-235
Engine:
Transmission:
—
—
—
—
—
—
from
to
—
—
2021
Acadia
2019
2020
Equinox
2019
2019
Involved Region or Country
North America, Europe, Uzbekistan, Russia, Middle East, Israel, Palestine, Argentina,
Brazil, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay, Japan, GM Korea Company,
Cadillac Korea, China, Thailand, Australia/New Zealand, Egypt, Africa
Additional Options (RPOs)
Equipped with Infotainment system IOS, IOT, IOU or IOV
Condition
Some customers or dealers may comment of ghost or phantom touch where random
touch inputs occur with the radio display; and/or the radio display is non-responsive to
touch immediately after having cleaned, wiped, or disinfected the radio display. Either
condition will last the entire ignition cycle. After the radio has gone through a sleep cycle,
the condition would no longer be present.
Cause
The cause of the condition may be the presence of liquid or certain physical touch during
the boot-up sequence that can corrupt the display boot-up for that ignition cycle, causing
false touch input or no touch input to be received until the radio can reboot.
Correction
Only clean or disinfect the radio display with the radio on. Always dry the display ensuring
no liquid, debris, or streaks remain.
Service Procedure
Caution: Refer to the latest version of Service Bulletin
06-00-89-029 for interior cleaning precautions, steps,
and suggested product usage. Use of products other
than those identified in the latest version of Service
Bulletin 06-00-89-029 are at the Dealer’s own risk.
When Sanitizing Vehicles:
Important: Ensure the radio display is left clean and
dry at the end of this process. The condition could
occur if liquid, streaks, residue, or debris remain on the
radio display.
1. Ignition On, wait for the radio to complete the
Brand splash animation.
2. Using a clean towel, apply/spray cleaner directly
onto the towel.
3. Wipe the display surface with the towel.
4. Dry the display leaving no liquid, streaks, residue,
or debris.
When a Vehicle Exhibits the Condition(s)
Described:
Important: Ensure the radio display is left clean and
dry at the end of this process. The condition may repeat
if liquid, streaks, residue, or debris remain on the radio
display.
1. Clean and dry the radio display per sanitizing
instructions above.
2. Turn ignition off, disable Retained Accessory
Power (RAP) and allow the radio to go to sleep (at
least 3 minutes).
3. Verify condition is resolved.
4. If issue persists, you may have to perform steps 1
and 2 again until the display is thoroughly clean,
completely dry, and the radio has entered
sleep mode.
Version
1
Modified
Released December 17, 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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