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Service bulletin TIBU7226-00

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 id10117874
Published by NHTSA2017-09-20
Manufacturer's numberTIBU7226-00
Manufacturer's date2015-08-21
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

A/C Refrigerant Quantity Is Incorrect for CT660 On Highway Trucks - In table 14 in chapter 6 of System Operation, Disassembly and Assembly, and Specifications, UENR1844-01 the refrigerant quantity is incorrect. The refrigerant quantity for CT660 On Highway Trucks (all engines) is 1.70 kg (3.75 lb), 1700 g (60oz)

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

Equipment and accessories, Heating and air conditioning

Vehicles listed
CATERPILLAR CT6602012
CATERPILLAR CT6602014 to 2017

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