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Service bulletin TSB537A

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 id10125500
Published by NHTSA2017-12-14
Manufacturer's numberTSB537A
Manufacturer's date2016-03-01
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

IMPCO has determined on certain PC6020 series APU between the s/n ETD22221154 to ETD222222115 may have an incorrectly labeled coolant outlet connection. TSB-537 covers the inspection and repair process to correct this fault.

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

Engine

Vehicles listed
CARRIER TRANSICOLD CARRIER TRANSICOLD

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