Bulletin No.:

Service Bulletin

Date:

22-NA-151
December, 2022

TECHNICAL
Subject:

DTC P0BBD Diagnosis and Repair
This bulletin replaces PIP5850E. Please discard PIE5850E.

Brand:
Chevrolet

Model:

Model Year:

VIN:

from

to

Bolt EV

2017

2022

Bolt EUV

2022

2022

from

to

—

—

Engine:

Transmission:

—

—

Involved Region or Country

North America, Brazil, GM Korea Company, Middle East

Condition

Some customers may comment on a Malfunction Indicator Lamp (MIL) illuminated and
the Driver Information Center (DIC) displays “Propulsion Power is Reduced” and the
battery will not charge above 30% State of Charge (SOC).
These are the remedial actions taken by the vehicle after diagnostic P0BBD fails.
Scan for DTCs and determine if P0BBD is present. If not, this bulletin does not apply.

Cause

There are some customer driving scenarios which may induce P0BBD without a true
battery cell problem.
Known cases occur at very low vehicles speeds and perhaps by applying the brake and
accelerator at the same time.
Other cases have been found to set during DC Fast Charging on certain models of
chargers.

Correction

Follow the Service Procedure below to determine whether or not the customer or charger
may have induced P0BBD.
Product Engineering has developed a programming solution for the customer driving
scenarios and the charging scenarios.
Important: Not all instances of P0BBD will be induced by the customer or charger, some
may require replacement of the battery pack.

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.

Copyright 2022 General Motors LLC. All Rights Reserved.

Use GDS2 to observe the following data parameter:
Hybrid/Electric Vehicle Battery Pack Voltage Variation
Exceeded Limit - Battery Cell
This parameter is available in GDS2 by navigating to:
Module Diagnosis —> K114B Hybrid/EV Powertrain
Control Module 2 —> Data Display Folder —> Data
Display Icon —> Voltage Data

Page 2

December, 2022

Bulletin No.: 22-NA-151

6124692

1. If the parameter Hybrid/Electric Vehicle Battery
Pack Voltage Variation Exceeded Limit — Battery
Cell reads cell number 20, 40, 67, or 87, then it is
suspected that the customer drives in a way that
may set P0BBD or has set during DC Fast
Charging without an actual battery cell problem.
The K114B Hybrid/EV Powertrain Control Module 2
will need to be reprogrammed to solve this
condition.
• If field action N222369400, N212343881,
N212343882, N212343883, N212345750,
N222369401, N212345941, or N212345943 are
open for the vehicle being repaired, perform the
applicable field action, which includes
programming of the HPCM2. If none of these
field actions are open, refer to K114B Hybrid/EV
Powertrain Control Module 2: Programming and
Setup in SI.
• Recent revisions to the HPCM2 software to
include the DC Fast Charging solution are
being released as follows:
1.1.
Model year 2019 – 11/7/2022
1.2.
Model Year 2022 and 2023 – 11/
21/2022
1.3.
Model year 2020 and 2021 – 12/
15/2022
1.4.
Model year 2017 and 2018 – TBD
• Any HPCM2 programmed before these dates
will need to be programmed again to receive
the updated DC Fast Charge P0BBD solution.
⇒ This update does not affect any other aspect of DC
Fast Charge operation.

Important: N212343881 or N212343882 must be
closed for model year 2017-2019 vehicles, or the
programming fix will not take effect. SPS will check to
see whether the battery has been replaced.
2. If the value in GDS2 is any other cell number, then
proceed with a pack replacement. If N212343881,
N212345941, N212345943 or N212343882 is
open, perform that field action. If those field actions
are closed, follow the battery exchange bulletin
#19-NA-194, bulletin PIC6449A, and the service
procedure Drive Motor Battery Replacement and
Shipping Preparation in SI.

Warranty Information
Important: For vehicles repaired with an open field
action, use the labor code information from that field
action.
For vehicles repaired under the EV Limited Component
Warranty, use the following appropriate labor operation.
Reference the Applicable Warranties section of
Investigate Vehicle History (IVH) for coverage
information. You may claim labor code 5080328 for the
diagnosis of P0BBD in conjunction with either
programming or pack replacement.
Labor
Operation

Description

Labor Time

For diagnosing P0BBD
using this bulletin (Can claim
in conjunction with Field
Action for P0BBD diagnosis)

0.3 hr

5080328

0.4 hr

2810265

HPCM2 Reprogramming
with SPS (Do not claim in
conjunction w/field action,
FA includes programming)

Bulletin No.: 22-NA-151

December, 2022

Page 3

Version

6

Modified

Released July 25, 2022
Revised August 12, 2022 – Updated the supersede statement, Model Years for Bolt EV,
added the Bolt EUV model and updated Steps 1, 2 and Warranty Information.
Revised August 30, 2022 – Updated the Important statement after Step 1.
Revised September 20, 2022 – Updated the supersede statement, added the 2020–2021
Model Years to Bolt EV and added field action N212343883 under step 1.
Revised October 07, 2022 – Added battery cell number 20 to list of cells affected in
step 1.
Revised December 13, 2022 – Added DC Fast Charge software release and procedure
information.

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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