Bulletin No.: PIC6124A
Date: 21-Dec-2015

Subject:

T18 Battery Charge Module (OBCM) Part Restriction

Models:

2016 Chevrolet Volt

This PI was superseded to update Condition/Concern. Please discard PIC6124.

Condition/Concern
As part of our ongoing quality improvement process, the T18 Battery Charger (OBCM) for the Chevrolet Volt (part number 24275451) is on restriction through
the GM TAC (Technical Assistance Center) as of August 1st, 2015.

Recommendation/Instructions
1.

Please have a certified Volt technician follow the procedures below prior to contacting TAC.
Important: Do NOT erase DTC's in any of the modules (especially on intermittent concerns) and do NOT attempt to reprogram software!

2.

Please complete the customer questions below with as much information as possible and as accurately as possible so that it can be emailed to TAC.

3.

Check and record all diagnostic codes in all modules on the vehicle.

4.

Be sure to record what module the DTC came from and any symptom codes associated with the DTCs (see latest version of bulletin 10-07-30-002 for
snapshot information).

5.

Please save the DTC captured data for later use.

6.

Description of the concern (both customer and technician).

7.

Charging at 110V vs 240V?

8.

OEM cord set, wall station, or aftermarket equipment? If aftermarket supplier, include make and model number.

9.

Location (residential or public charge station, generator, other)?

10. HPCM 2 software level
11. Once the above information has been obtained, please review all PI and TSB information as well as all available S.I. diagnostics.
12. If diagnostics lead to OBCM replacement, contact TAC @ 877-446-8227 (U.S.) or in Canada 1-800-263-7740 (English) or 1-800-263-7960 (French) to
review case details. Please have as much stored DTC and snapshot information as possible prior to contacting TAC.
13. If it is determined that component replacement is needed after reviewing the diagnosis, TAC will arrange for ordering of the new component and request
that it be shipped overnight.
Note: When this occurs, record the last 9 digits of the TAC case # to be used by the parts department (in conjunction with the part #) as the
CONTROL NUMBER to track shipment of the part. It is not necessary to call TAC for part tracking information.

Parts Information
Year/ Make Model

Component Code

2016 Chevrolet Volt

T18

Part Name
Drive Motor Battery Charger Replacement

Warranty Information

1

Part Number

Quantity

24275451

1

For vehicles repaired under warranty use:
Labor Operation

Description

Labor Time

5040210

Drive Motor Battery Charger Replacement

Use Published Labor Operation Time

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.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

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