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Service bulletin TB-09-08-49-005

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 id10030113
Published by NHTSA2009-08-04
Manufacturer's numberTB-09-08-49-005
Manufacturer's date2009-04-01
NHTSA componentFUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM

NHTSA's summary

GENERAL MOTORS: FUEL GAUGE READS INACCURATE OF EMPTY, LOW FUEL INDICATOR ILLUMINATED, DTCS P0461 AND/OR P0463 SET (CHECK TERMINALS IN CONNECTOR X405). THIS CONDITION MAY BE DUE TO POOR TERMINAL TENSION AT CONNECTOR X405, RESULTING IN RESISTANCE AT THE AFFECTED CIRCUITS. INCLUDES THE IMPALA SS. *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

Fuel system

Trouble codes named

P0461, P0463

Vehicles listed
BUICK ALLURE2008, 2009
BUICK LACROSSE2008, 2009
CHEVROLET IMPALA2008, 2009

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
05-06-04-022V2024-09-05. Service bulletin. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
16-NA-3832024-07-16. Service bulletin. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
04-06-04-051I2024-07-16. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
19-NA-0442024-02-21. Service bulletin. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
04-06-04-051H2023-08-28. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
05-06-04-022T2022-10-11. Service bulletin. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
05-00-89-072F2022-10-11. Service bulletin. This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
04-06-04-051G2022-10-08. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
19-NA-0442022-08-29. Service bulletin. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
PIP58562022-06-13. Service bulletin. This Preliminary information communicates provides information to the technician on the use of R-99 or R-95 Renewable diesel fuel.