Bulletin No.: 22-NA-003

Service Bulletin

Date: May, 2024

TECHNICAL
Subject:

Instrument Panel Cluster (IPC) Warning Lamps, Malfunction Indicator
Lamp (MIL) Illuminated, Diesel Exhaust Fluid (DEF) Message Displayed Various DTCs Set
This bulletin replaces PIP5416D. Please discard PIP5416D.

Brand:

Model:

Chevrolet

Colorado

GMC

Canyon

Involved Region or Country

Model Year:
from

to

2016

2022

VIN:
from

Engine:

Transmission:

to
2.8 LWN

North America
Some customers may comment on one or more of the following conditions:
• Air conditioning may not cool or may blow hot air.
• A Driver Information Center (DIC) message is displayed.
• Instrument Panel Cluster (IPC) warning lamps are illuminated.

Condition

• Erratic or fluctuating engine oil pressure gauge.
• One or more Diesel Exhaust Fluid (DEF) warning messages are displayed.
• The Malfunction Indicator Lamp (MIL) is illuminated.
• The engine may crank but not start.
• The engine may run rough or misfire.
• The Service Four Wheel Drive (4WD) message may illuminate.

Cause

This condition may be caused by chafing of the engine wiring harness, connector terminal concerns or a connector not fully seated.

Correction

Complete the current SI diagnostic for any symptoms or DTCs found. Refer to the Service Procedure for possible concerns caused by wire contact.

Service Procedure:
If the diagnosis does not lead to a resolution or if the
symptoms or DTCs are intermittent and cannot be
duplicated, check for chafing of the engine wiring
harness or connector concerns in the following areas:
-

Air Conditioning (AC) compressor, AC compressor
suction and discharge line manifold, AC line and
AC compressor clutch.

Copyright 2024 General Motors. All Rights Reserved.

Page 2

May, 2024

Bulletin No.: 22-NA-003

4573217

4573211

Concerns in the area of the AC compressor, lines or
suction/discharge pipes may cause:
• The MIL to illuminate.
• The Driver Information Center (DIC) may display a
reduced power message or service power steering
message.
• The engine to run rough.
• The Service Four Wheel Drive (4WD) Light or
Stabilitrak light may illuminate.
• A possible extended crank or a crank no start.
• The oil pressure gauge may read erratically or
read no oil pressure.
• The Air Conditioning (AC) may not cool or blow hot
air.
• An open fuse in the Underhood Bussed Electrical
Center (UBEC).
DTCs associated with chaffing in this area include:
• B127E, C0306, C0321, C0398, C0800, P0071,
P0072, P0091, P0117, P0119, P0340, P0341,
P0406, P0483, P0522, P0628, P0641, P06A3,
P0700, P20BB, P20BF, P227E, P24B1, U0073,
U0077, U0121, U0131, U0140, U0151, U0415,
U2099, U0401, U0415 and U0420.
• Serpentine Belt. The fan clutch wiring harness
support bracket may be out of position allowing the
harness to rub on the belt.

4573222

Concerns in the area of the serpentine belt may cause:
• Various IPC warning lights to illuminate.
• A crank no start concern.
• The MIL to illuminate.
• The engine may run rough or misfire.
• The Service Four Wheel Drive (4WD) light may
illuminate.
• The Stabilitrak light may illuminate.
• The Air Conditioning (AC) may not cool or may
blow hot air.

Bulletin No.: 22-NA-003

May, 2024

DTCs associated with chafing in this area may include:
• C0273, P0526, P0480, P0336, P0526, P0641 and
P0651.

Page 3

• The Driver Information Center (DIC) may display a
reduced power message.
• An open fuse in the Underhood Bussed Electrical
Center (UBEC)
DTCs associated with chafing in this area may include:
• B1011, C0306, P0201, P0202, P0203, P0204,
P0410, P0575, P062D, P0697, U0073, U0100,
U0121, U0140, U0415 and U0420.
• Transmission bell housing bolt/stud.

4573213

4573244

Concerns in the area of the rear of engine / transmission bell housing bolt/stud may cause:
• Various IPC warning lights to illuminate.
• The Service Four Wheel Drive (4WD) light may
illuminate.
• The Stabilitrak light may illuminate.
• The MIL to illuminate.
DTCs associated with chaffing in this area may include:

4573218

Concerns in the area of the right rear of engine /
exhaust heat shield may cause:
• Various IPC warning lights to illuminate.
• The Service Four Wheel Drive (4WD) light may
illuminate.
• The Stabilitrak light may illuminate.
• The check engine light to illuminate.

• P0201, P0202, P0203, P0204, P0392, P0401,
P0420, P062D and U0073.
• Coolant pipe and clamp tabs between engine and
cowl.

Page 4

May, 2024

Bulletin No.: 22-NA-003

4573225

4573214

Concerns in the area of the coolant pipe / clamp /
clamp tabs between engine and cowl may cause:
• Various IPC warning lights to illuminate.
• The Service Four Wheel Drive (4WD) light may
illuminate.
• The Stabilitrak light may illuminate.
• The MIL to illuminate.
DTCs associated with chafing in the area may include:
• B1011, P0575, U0073, U0100, U0121, U0140,
U0415 and U0420.
• Near the brake fluid level switch.

4573220

Bulletin No.: 22-NA-003

May, 2024

Page 5

Concerns in the area near the encoder motor on the
transfer case may cause:
• Various IPC warning lights to illuminate.
DTCs associated with chafing in this area may include:
• C0396.
• Turbocharger Vane Position Actuator Connector.

4573216

Concerns in the area near the brake fluid level switch
may cause:
• The service brake light to illuminate.
• The DIC may display that the brake fluid is low.
• The check engine light to illuminate.
DTCs associated with chafing in this area may include:

4575279

• C0273 and P0641.
• Transfer case encoder motor.

Concerns with loose terminals or connector not fully
seated at the Turbocharger Vane Position Actuator may
cause:
• The Check Engine Light to illuminate.
• The Driver Information Center (DIC) may display a
reduced power message.
• The vehicle may have a low power concern.
DTCs associated with a loose connector or terminals
include:
• P0045 or P2599.
• Additionally, there may be chafing of the wiring
harness on the power steering pump pulley.
If you encounter these scenarios, inspect, repair (as
necessary) and route the wiring harness away from
these possible chafe points.

4573221

Page 6

May, 2024

Bulletin No.: 22-NA-003

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

Description

Labor Time

5480358*

Wiring Repairs Related to
22–NA-003

Straight Time

* This is a unique labor operation for bulletin use only.

Version

3

Modified

Released January 11, 2022
Revised April 25, 2024 - Added DTC P0091 to A/C Compressor to Engine Harness contact.
Revised May 16, 2024 - Removed; Right rear of engine. Check for harness damage on
the exhaust heat shield as described in the latest version of bulletin 16-NA-081.

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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