19NA186

Bulletin No.:
Service Bulletin
Date:
19-NA-186
September, 2019
TECHNICAL
Subject:
Brand:
Speedometer and Tachometer Reading Inaccurately
Model:
Model Year:
VIN:
from
to
2018
2019
from
to
Engine:
Transmission:
All
All
Cruze
Chevrolet
Equinox
Malibu
Traverse
GMC
Acadia
Terrain
Involved Region or Country
All countries EXCEPT: Middle East, Israel, South America, South Korea, Australia,
New Zealand, Egypt, Africa
Additional Options (RPOs)
Equipped with RPO UDC cluster
Condition
Certain 2018 and 2019 Model Year vehicles may have a condition in which the analog
speedometer and tachometer may offset to a new home position above “zero” upon
vehicle power-up. The digital speedometer remains accurate.
Correction
Dealers will need to update the instrument cluster software to the latest version.
Service Procedure
•
Note: Carefully read and follow the instructions below.
•
•
Ensure the programming tool is equipped with the
latest software and is securely connected to the
data link connector. If there is an interruption
during programming, programming failure or
control module damage may occur.
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 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.
Copyright 2019 General Motors LLC. All Rights Reserved.
•
Turn OFF or disable systems that may put a load
on the vehicles battery such as; interior lights,
exterior lights (including daytime running lights),
HVAC, radio, etc.
Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/
Maintenance (I/M) system status indicators to NO.
Page 2
September, 2019
Bulletin No.: 19-NA-186
5164840
1. Reprogram the instrument cluster. Refer to P16
Instrument Cluster: Programming and Setup in SI.
Bulletin No.: 19-NA-186
September, 2019
Page 3
5164843
2. Record SPS Warranty Claim Code on job card for
warranty transaction submission.
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
2886438*
Instrument Cluster
Reprogramming with SPS
0.3 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.
Page 4
September, 2019
Bulletin No.: 19-NA-186
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.
Version
1
Modified
Released September 05, 2019
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.
WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION