Bulletin No.:

Service Bulletin

Date:

19-NA-189
September, 2019

TECHNICAL
Subject:

Radio Displays Climate Off Message or HVAC Popup Displays Different Settings
This Bulletin replaces PIT5663B. Please discard PIT5663B.

Brand:
Cadillac

Model:

Model Year:

VIN:

from

to

2019

2019

from

to

Engine:

Transmission:

All

All

CT6
XT4
Blazer
Camaro
Colorado
Equinox

Chevrolet

Malibu
Silverado
1500 (New
Model)
Volt
Canyon

GMC

Sierra 1500
(New Model)
Terrain

Holden

Acadia
Equinox

Involved Region or Country

North America, Russia, Middle East, Israel, South America, Japan, South Korea, China,
Thailand, Australia, New Zealand, Egypt, Africa

Additional Options (RPOs)

Equipped with Infotainment System RPO IOS, IOT or IOU

Condition

Some customers may comment that the radio randomly may display a pop-up message
“Climate Off” even though the HVAC system is fully functional. This can be repetitive in
nature. Making any change to the HVAC system will make the message disappear.
The radio may also display an HVAC popup when changing HVAC settings that do not
match the selected setting (e.g. blower speed).

Cause

The cause of the condition may be software anomalies between the HVAC and Radio that
may cause this popup to appear with incorrect or inaccurate HVAC information.

Correction

Reprogram the K56 Serial Data Gateway Module (SDGM) and/or the A11 Radio.
The correction for the condition depends on the vehicle and the radio software version.
Refer to the Service Procedure for which fix is correct.

Copyright 2019 General Motors LLC. All Rights Reserved.

Page 2

September, 2019

Service Procedure
Note: Where applicable, when programming the K56
Serial Data Gateway Module, both processor 1 and
processor 2 need to be updated. After programming
processor 1, re-enter SPS and program processor 2.
Not all models will have two processors listed in
TIS2Web.
Note: Stable battery voltage is critical during
programming. Any fluctuation, spiking, over voltage or
loss of voltage will interrupt programming. Install a GM
Authorized Programming Support Tool to maintain
system voltage. Refer to www.gmdesolutions.com for
further information. If not available, connect a fully
charged 12 V jumper or booster pack disconnected
from the AC voltage supply. DO NOT connect a battery
charger.
Vehicles Requiring ONLY A11 Radio
Reprogramming
Note: Some export models may be involved in bulletin
A192214560. The Investigate Vehicle History screen in
GM Global Warranty Management system should
always be checked to confirm vehicle involvement prior
to beginning any required inspections and/or repairs.
Involved vehicles may have already received the radio
software update, prior, or relative to that bulletin.
• Chevrolet Camaro, Colorado, Equinox and Volt
• GMC Canyon and Terrain
• Holden Equinox
Vehicles listed above only need to reprogram the radio.
1. Determine the current radio software version. On
the radio, select Home > Settings > About > Build
Number.
• If the radio software version/Build Number is
less than V805, reprogram the radio. Refer to
A11 Radio: Programming and Setup in SI.
• If the radio software version/Build Number is
V805 or greater, no further action is required.
Vehicles Requiring BOTH K56 Serial Data Gateway
Module Reprogramming and A11 Radio
Reprogramming
Note: Some export models may be involved in bulletin
A192214560. The Investigate Vehicle History screen in
GM Global Warranty Management system should
always be checked to confirm vehicle involvement prior
to beginning any required inspections and/or repairs.
Involved vehicles may have already received the radio
software update, prior, or relative to that bulletin.
•
•
•
•

Cadillac CT6 and XT4
Chevrolet Blazer, Malibu and Silverado
GMC Sierra
Holden Acadia

Bulletin No.: 19-NA-189

Vehicles listed above need to reprogram the SDGM
and the radio.
1. Determine the current radio software version. On
the radio, select Home > Settings > About > Build
Number.
• If the radio software version/Build Number is
less than V805, reprogram the radio. Refer to
A11 Radio: Programming and Setup in SI, then
continue to Step 2.
• If the radio software version/Build Number is
V805 or greater, continue to Step 2.
2. Reprogram the SDGM. Refer to K56 Serial Data
Gateway Module: Programming and Setup in SI.

Parts Information
No parts are required for this repair.

Warranty Information
For vehicles repaired under the Bumper-to-Bumper
coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information.
Labor
Operation

Description

Labor Time

2886458*

Reprogram K56 Serial Data
Gateway Module and
A11 Radio

0.7 hr

2886448*

Radio Reprogramming
with SPS

0.3 hr

2886468*

Reprogram K56 Serial Data
Gateway Module

0.4 hr

*This is a unique Labor Operation for Bulletin use only.
*To avoid warranty transaction rejections, carefully read and
follow the instructions below:
• The SPS Warranty Claim Code must be accurately
entered in the “SPS Warranty Claim Code” field of the
transaction.
• When more than one Warranty Claim Code is generated
for a programming event, it is required to document all
Warranty Claim Codes in the “Correction” field on the job
card. Dealers must also enter one of the codes in the
“SPS Warranty Claim Code” field of the transaction,
otherwise the transaction will reject. It is best practice to
enter the FINAL code provided by SPS.

Warranty Claim Code Information Retrieval
If the SPS Warranty Claim Code was not recorded on
the Job Card, the code can be retrieved in the SPS
system as follows:
1. Open TIS on the computer used to program the
vehicle.
2. Select and start SPS.
3. Select Settings.
4. Select the Warranty Claim Code tab.
The VIN, Warranty Claim Code and Date/Time will be
listed on a roster of recent programming events. If the
code is retrievable, dealers should resubmit the
transaction making sure to include the code in the SPS
Warranty Claim Code field.

Bulletin No.: 19-NA-189

September, 2019

Page 3

Version

2

Modified

Released August 22, 2019
September 17, 2019 – Updated the Supersede statement, added the 2019 Silverado and
Sierra Models and added Silverado and Sierra models under Vehicles Requiring BOTH
K56 Serial Data Gateway Module Reprogramming and A11 Radio Reprogramming.

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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