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Service bulletin 15642

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 id10089494
Published by NHTSA2017-01-25
Manufacturer's number15642
Manufacturer's date2015-12-18
NHTSA componentELECTRICAL SYSTEM; AIR BAGS

NHTSA's summary

15642 - SPECIAL COVERAGE. ON SOME 2011 MODEL YEAR CHEVROLET VOLT VEHICLES, THE AIRBAG INDICATOR MAY ILLUMINATE. THIS MAY BE CAUSED BY THE SENSING AND DIAGNOSTIC MODULE (SDM) MONITORING AN INCREASE IN THE RESISTANCE OF THE DRIVER OR PASSENGER SIDE-IMPACT AIRBAG DEPLOYMENT LOOP CIRCUITS. THIS INCREASED RESISTANCE MAY BE CAUSED BY LOOSE TERMINAL CRIMPS IN EITHER THE DRIVER OR PASSENGER SEAT MOUNTED SIDE-IMPACT AIRBAG WIRING HARNESS CONNECTORS. DEALERS ARE TO INSPECT FOR THE PRESENCE OF SPECIFIC DIAGNOSTIC TROUBLE CODES (DTCS) AND, IF NECESSARY, BYPASS THE HARNESS CONNECTORS AND REPAIR WIRING IN THE DRIVER AND/OR PASSENGER FRONT SIDE-IMPACT AIRBAG DEPLOYMENT LOOP CIRCUITS. THE REPAIRS WILL BE MADE AT NO CHARGE TO THE CUSTOMER.

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

Air bags, Electrical system

Vehicles listed
CHEVROLET VOLT2011

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

Recalls for the same vehicles and component
15V1450002015-03-13. ELECTRICAL SYSTEM:IGNITION; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PIE08772025-11-05. Service bulletin. This engineering informational bulletin provides process for a GM engineering study on curtain Takata Airbag Steering Wheel Modules and needs the used Takata airbags to be returned to GM.
18-NA-1802025-10-16. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802025-09-26. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
21-NA-0432025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
18-NA-1802025-01-30. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802025-01-08. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802024-12-17. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
PIT5962B2024-12-12. Service bulletin. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
PIC6026A2024-12-05. Service bulletin. This Preliminary Information communication provides information to the technician about the replacement Accessory Power Module does not have an orange wire harness like the original. Technician will need to order a jumper harness General Motors part number 24268507.
20-NA-1322024-11-09. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.