22NA044

Bulletin No.:
Service Bulletin
Date:
22-NA-044
February, 2022
TECHNICAL
Subject:
Check Engine MIL Illuminated in DIC Set by Body Control Module with DTC P0607
Brand:
Model:
Buick
Envision
CT4
CT5
Cadillac
Model Year:
VIN:
from
to
2021
2022
2020
2022
2021
2022
from
to
—
—
Engine:
Transmission:
—
—
Escalade
Escalade
ESV
Corvette
Chevrolet
Tahoe
2021
2022
2021
2022
Suburban
GMC
Yukon
Yukon XL
Involved Region or Country
North America, Europe, Australia/New Zealand
Condition
Some customers may comment on a check engine light illuminated on the DIC.
Technicians may find DTC P0607 in the body control module (BCM) set current or in
recent history.
Cause
The cause of the condition may be an internal BCM software anomaly can inadvertently
set DTC P0607 and set the check engine light.
Correction
Do not replace the BCM. Engineering is currently investigating a root cause.
1. Clear all DTCs and perform a global battery reset.
2. Ensure all modules have powered down.
3. Start the vehicle and ensure the check engine light does not return.
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.
Version
1
Modified
Released February 23, 2022
Labor
Operation
2888468*
Description
Labor Time
Global Battery Reset and
Code Clear
0.6 hr
*This is a unique Labor Operation for bulletin use only.
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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