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Service bulletin 1PM-T6T3X-10

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 id10119396
Published by NHTSA2017-10-15
Manufacturer's number1PM-T6T3X-10
Manufacturer's date2017-09-05
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

The Polar MyLift system is an optional component that will automatically lift one or more axles when a trailer is unloaded, and deploy all axles as the trailer loads. Some MyLift systems have been observed to contain a pitted pressure switch contact, causing the system not to function as designed. Reliable failure of the component has not been confirmed, and full manual control of the axle lift functions remains intact. However, Polar?s commitment to reliable products leads us to trade out existing MyLift assemblies with an upgraded version.

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

Electrical system, Equipment and accessories

Vehicles listed
POLAR TANK MC 331 TANK TRAILER2016

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