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Service bulletin AC0498

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 id600539
Published by NHTSA1998-05-20
Manufacturer's numberAC0498
Manufacturer's date1998-01-20
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

SPECIFICATION CHANGE FOR REFRIGERANT CHARGE. *YC

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
NISSAN DIESEL UD14001994
NISSAN DIESEL UD18001998
NISSAN DIESEL UD20001995 to 1998
NISSAN DIESEL UD23001998
NISSAN DIESEL UD26001998
NISSAN DIESEL UD30001994 to 1998
UD UD14001995, 1996, 1997, 1998
UD UD18001994, 1995, 1996, 1997
UD UD23001994, 1995, 1996, 1997
UD UD26001994, 1995, 1996, 1997

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

Other bulletins for the same vehicles and component
NTB-09-1292010-04-07. Service bulletin. NISSAN: VENT CONTROL VALVE REPLACEMENT. WHEN REPLACING THE EVAP CANISTER VENT CONTROL VALVE FOR REASON: USE THE ONE LISTED ON PAGE 2; FOR VENT CONTROL VALVE REPLACEMENT PROCEDURE, REFER TO THE APPROPRIATE SECTION OF THE ELECTRONIC SERVICE MANUALS (ESM; WHEN INSTALLING THE NEW VALVE, DO NOT ADD ANY LUBE TO ITS O RING; FOR FRONTIER (D40 SERIES) ONLY, INSTALL THE PROTECTOR LISTED IN PARTS INFORMATION. *PE INCLUDES 2005-09 FRONTIER. UPDATED 12/8/10. *PE
AC062000-06-14. Service bulletin. DIAGNOSTIC TIPS FOR LEAKING COMPRESSOR FITTINGS ON A UD1400 RED DOT A/C MODEL R-2170, MODEL YEAR 1994 AN AFTER. *MJS
AC-051998-07-06. Service bulletin. RED DOT CONDENSER FAN MOTOR SUBHARNESS. *YC
97071797AC021998-03-30. Service bulletin. PROCEDURES AND INSTALLATION OF THE EVAPORATOR DRAIN PAN LINER KIT. *YC