# Service bulletin SB16\-D\-001

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.

- Type: Service bulletin
- NHTSA id: 10084171
- Published by NHTSA: 2016\-11\-09
- Manufacturer's number: SB16\-D\-001
- Manufacturer's date: 2016\-10\-28
- NHTSA component: EQUIPMENT:APPLIANCE:AIR CONDITIONER

## NHTSA's summary

AN INVESTIGATION OF THE AIR CONDITIONING COMPRESSORS RETURNED AS WARRANTY PARTS HAS SHOWN THAT COMPRESSORS ARE BEING UNNECESSARILY REPLACED. THE COMMON COMPLAINTS OF NOISE AND/OR POOR COOLING ARE MOST LIKELY A RESULT OF LOW REFRIGERANT LEVELS. IN ORDER TO HELP TECHNICIANS DIAGNOSE A/C SYSTEM PROBLEMS, ISUZU COMMERCIAL TRUCK OF AMERICA, INC. \(ISUZU\) IS PROVIDING THE DIAGNOSTIC PROCEDURE TO HELP DIFFERENTIATE BETWEEN A LOW REFRIGERANT CONDITION AND A MECHANICAL ISSUE.

## 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

Equipment and accessories, Heating and air conditioning

## Vehicles listed

- ISUZU N SERIES

JSON: [/v1/bulletins/10084171](/v1/bulletins/10084171)

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