Bulletin No.:

Service Bulletin

Date:

17-NA-186
February, 2020

TECHNICAL
Subject:

HVAC Pop-Up is Blank and/or Personalization Selections within Climate and Air
Quality, Collision/Detection Systems, or Lighting Menus are Missing at Times

Brand:

Model:

Buick

Envision

Model Year:
from

VIN:
to

from

to

2017

All

All

Engine:

Transmission:

All

All

Encore
LaCrosse
ATS
CT6

2017

CTS
Cadillac

Escalade
Models
XTS
XT5
Camaro

2016

Colorado
Corvette
Cruze
Chevrolet

Impala
Malibu
Silverado
Suburban

2017

Tahoe
Volt
Acadia
Canyon
GMC

Sierra
Yukon
Models

Involved Region or Country

North America and N.A. Export Regions

Additional RPO/s:

Equipped with Infotainment System RPOs IO5, IO6

Copyright 2020 General Motors LLC. All Rights Reserved.

Page 2

February, 2020

Bulletin No.: 17-NA-186

Condition

Some customers may comment that when they enter Radio Settings on the infotainment
display, any of the personalization selections within the Climate and Air Quality, Collision/
Detection Systems, and Lighting menus are missing at times. Typically, the concern will
start happening as soon as the vehicle is started and it will last for an entire ignition cycle
if it is going to occur. However, if the ignition is turned off briefly and back on again before
the radio/tuner has a chance to go to sleep, the selections will typically reappear again.
Some customers may also comment that, when selecting HVAC control settings, the
HVAC responds correctly but the selections are not displayed on the radio (HVAC pop-up
is blank).
For the Camaro ONLY, the customer may also be unable to change settings of Ambient
Lighting and Link to Drive Mode.
If any of the personalization selections within the Comfort and Convenience menu are
missing at times, this bulletin does not apply. For those concerns, follow Service Bulletin
18-NA-039 in SI.

Cause

This condition may be caused by the radio tuner module.

Correction

If this concern is experienced, replace the radio assembly.
Note: For Korean market ONLY, reprogram the radio. DO NOT replace the radio
assembly for GMK models (Impala, Volt, Camaro, Cruze, Malibu) if this concern is
experienced.
Note: If it is unknown what selections should be available within a particular menu, it is
suggested to compare to the same model year and model vehicle that is equipped with
the same infotainment system RPO to determine if any are missing at times.

Service Procedure

Warranty Information

Refer to Radio Replacement in SI.

For vehicles repaired under warranty, use:

Parts Information
Use the latest part number radio receiver listed in the
electronic parts catalog for the VIN you are working on.
For 2016 Camaro ONLY: If more than one part number
is listed with the VIN filter on, select the one that starts
with 8427 as this part number contains improvements
to address this concern.
For 2017 Impala ONLY: if more than one part number is
listed with the VIN filter on, select the one that starts
with 8427 or 8429 or greater as these part numbers
contain improvements to address this concern.

Labor
Operation

3420840

Description

Labor Time

Radio Replacement

Use
Published
Labor
Operation
Time

Version

6

Modified

November 17, 2017 – Updated the Subject, Condition, Correction and added Parts
Information.
April 06, 2018 – Added a Note in the Correction section for the Korean market and
changed the Warranty statement.
May 03, 2018 – Removed the 2017 XT5 because the solutions outlined are not available
for the 2017 XT5 because it has been found that the 8429XXXX replacement radio does
not contain the fix for this issue.
March 18, 2019 – Added the 2017 XT5.
January 31, 2020 – Updated the Bulletin reference in the Condition.

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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