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Service bulletin PIP-4891-C

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 id10038751
Published by NHTSA2011-06-27
Manufacturer's numberPIP-4891-C
Manufacturer's date2015-08-01
ReplacesPIP-4891-G
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

GM: SERVICE ENGINE SOON LIGHT IS ON WITH A TROUBLE CODE STORED. IT IS LIKELY CAUSED FROM OVERFILLING THE ENGINE AND A LARGE TEMPERATURE CHANGE. 2011 VOLT. *RM UPDATED ON 5/2/2012. *KB UPDATED 2/1/16. *PE

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

Engine

Vehicles listed
CHEVROLET VOLT2011, 2012

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
20151042015-03-12. Engine

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
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.
21-NA-0432024-12-10. 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.
01-06-01-011P2024-09-05. Service bulletin. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
18-NA-1252024-06-28. Service bulletin. This service bulletin provides information for engine oil life monitor operation calculation.
18-NA-1252024-06-08. Service bulletin. This service bulletin provides information for engine oil life monitor operation calculation.
15-00-89-004G2024-05-15. Service bulletin. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
PI0412B2024-05-06. Service bulletin. No Crank/No Start, Dead Battery Due to Parasitic Drain/Discharge.
PI0412A2024-05-06. Service bulletin. No Crank/No Start, Dead Battery Due to Parasitic Drain/Discharge.
PIP4870B2024-04-15. Service bulletin. Engine Or Exhaust Noise While Driving In Extended Range Mode.
PIP4859C2024-04-15. Service bulletin. Vacuum Coolant Fill Information.