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Service bulletin TSB-026

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 id10119575
Published by NHTSA2017-10-15
Manufacturer's numberTSB-026
Manufacturer's date2017-07-21
NHTSA componentSTRUCTURE; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT

NHTSA's summary

Some customers operating Volvo trucks have reported that the fuel level reading never reaches the full mark on the fuel level gauge. New calibration released All BOC and Frame fuel storage modules

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Body and frame, Electrical system, Equipment and accessories, Fuel system, Instrument cluster

Vehicles listed
QUANTUM FUEL SYSTEMS LLC. CNG FUEL SYSTEM

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