24-NA-058

Service Bulletin
Bulletin No.:
24-NA-058
Date:
April, 2024
TECHNICAL
Subject:
Malfunction Indicator Lamp (MIL) Illuminated - DTC P062F, P040B, P041B, P0422,
P060C, P062B, P1428, P142A, P20EE, P20FE, P22F9, P244A, and/or P244B Set
Brand:
Model:
Chevrolet
Silverado 2500HD/
3500HD
GMC
Sierra 2500HD/
3500HD
Model Year:
from
to
2024
2024
VIN:
from
to
Engine:
Transmission:
L5P
Involved Region or Country
North America
Condition
Some customers may comment on the MIL illuminated.
Some customers may also comment that the A/C turns off at idle when it is hot outside.
Some technicians may find one or more of the following DTCs set in the Engine Control
Module (ECM):
– P062F, P040B, P041B, P0422, P060C, P062B, P1428, P142A, P20EE, P20FE,
P22F9, P244A, and/or P244B
Cause
This condition may be caused by a software anomaly.
Correction
Refer to N242438501.
– If N242438501 has been closed, refer to Service Information.
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.
Version
2
Modified
Released March 21, 2024
Revised April 16, 2024 - Removed ECM Programing Information and added to Refer to
N242438501 in 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.
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