Bulletin No.:

Service Bulletin

Date:

19-NA-109
August, 2019

INFORMATION
Subject:

Duramax Oil Life Monitor Counts Down too Quickly

Brand:

Model:

Chevrolet
GMC

Model Year:

VIN:

from

to

from

Silverado
2500/3500

2019

2019

SOP

Sierra
2500/3500

2019

Engine:

L5P
1GC1KTEY5KF265365

Involved Region or Country

2019

Transmission:

to

SOP

All
L5P

North America, Israel

Additional Options (RPOs)
Condition

Some customers may have a concern that the engine oil life seems to be counting down
too quickly.

Cause

The cause of the condition may be a software anomaly

Correction

An Engine Control Module (ECM) update is available to help with this concern. Please
check for an ECM Update. If the ECM is up to date, perform normal SI diagnostics.

Service Procedure
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 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.
Refer to K20 Engine Control Module: Programming and
Setup in SI to check for latest ECM update.

Parts Information
No parts are required for this repair.

Copyright 2019 General Motors LLC. All Rights Reserved.

Page 2

August, 2019

Bulletin No.: 19-NA-109

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

*2886268

Engine Control Module Reprogramming with SPS Oil Life
Monitor Engine Control Module Update

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.

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

2

Modified

Released May 17, 2019
Revised August 12, 2019 – Updated Subject and added programming with SPS warranty
statements

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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