NHTSA ID Number: 10237250
Manufacturer Communication Number: 23-NA-081
TSB/Document Date: 2023-06-05
Summary
This informational bulletin provides information for dealers/technicians on High Output Engine Calibration Installation Process.
Service Bulletin
Bulletin No.:
23-NA-081
Date:
May, 2023
INFORMATION
Subject:
Information on High Output Engine Calibration Installation Process
Brand:
Model:
Colorado
Model Year:
from
to
2023
2023
VIN:
from
Engine:
to
L3B
Involved Region or Country
United States, Canada
Additional Options (RPOs)
Equipped with RPO RWQ
Condition
Vehicles with an L3B engine RPO equipped with RPO RWQ High Output Engine
Calibrations needs to be activated.
Cause
The cause of the condition may be that the engine calibration has not been activated.
1. Flash ECM Calibration and complete the Setup Process using Service
Programming System (SPS), Dealers DO NOT need to call techline..
2. The labor for download and the re-flash of the module is to be charged to the labor
operation under Warranty Information.
3. This engine calibration is included with the vehicle transaction price and you will be
provided a SPS warranty claim code upon programming completion.
Correction
Service Procedure
Important: Service agents must comply with all
International
, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
*0590032
To Install High Output Calibration (RWQ)
Labor Time
Add Time:
0.3 hr
Version
2
Modified
Released April 28, 2023
Revised May 17, 2023 – Removed steps 1 and 2 from Correction Section.
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.
Copyright 2023 General Motors LLC. All Rights Reserved.
WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION
Page 2
May, 2023
Bulletin No.: 23-NA-081
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TSB/Document ID: 23-NA-081
Replacement Service Bulletin Number:
MFR Communication Date: 2023-05-17
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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