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Service bulletin 12239

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10089701
Published by NHTSA2017-01-26
Manufacturer's number12239
Manufacturer's date2012-10-30
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

12239 - SERVICE UPDATE. THE DRIVE BELT MAY SEPARATE. THIS WOULD CAUSE A LOSS OF POWER TO THE MOTOR GENERATOR UNIT AND AIR CONDITIONING COMPRESSOR, DTC P0A90 WILL BE SET, AND THE RED BATTERY INDICATOR WILL ILLUMINATE. IF THE DRIVER IGNORES THE RED BATTERY LIGHT AND CONTINUES TO DRIVE THE VEHICLE, THE STORED BATTERY CHARGE WILL EVENTUALLY BE DEPLETED AND THE CUSTOMER WILL NOT BE ABLE TO START THE VEHICLE. DEALERS ARE TO REPLACE THE DRIVE BELT.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Equipment and accessories, Heating and air conditioning, 12-volt battery

Trouble codes named

P0A90

Vehicles listed
BUICK LACROSSE2013
CHEVROLET MALIBU2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT5074H2023-12-11. Service bulletin. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
PIT5074G2023-12-11. Service bulletin. Terminal Test Probe And Replacement Terminal.
12238D2023-12-04. Service bulletin. Loss of Battery Charge ? Inspect Generator Control Module
12238C2023-12-04. Service bulletin. Loss of Battery Charge ? Inspect Generator Control Module
12238B2023-12-04. Service bulletin. Loss of Battery Charge ? Inspect Generator Control Module
030603004V2019-05-13. Service bulletin. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
18NA1802019-04-22. Service bulletin. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
03-06-03-003D2018-06-04. Service bulletin. This warranty administration bulletin provides policy information on ACDelco® replacement battery warranty procedures.
PIP4920N2018-06-04. Service bulletin. This Preliminary Information communication advises the technician that the Battery Energy Control Module and Generator Control and Battery Module will remain on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.