Service bulletin 0900403

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)
Type	Service bulletin
NHTSA id	10002064
Published by NHTSA	2003-08-13
Manufacturer's number	0900403
Manufacturer's date	2003-02-07
Replaces	01595
NHTSA component	VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW

NHTSA's summary

REAR WINDOW DEFROSTER GRID LINE REPAIR PROCEDURE. *TT

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

Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
MAZDA 626	1998, 1999, 2000, 2001, 2002
MAZDA MAZDA6	2003
MAZDA MIATA	1999 to 2003
MAZDA MILLENIA	1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
MAZDA MPV	2000, 2001, 2002, 2003
MAZDA PROTEGE	1999, 2000, 2001, 2002, 2003
MAZDA TRIBUTE	2001, 2002, 2003

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

Recalls for the same vehicles and component
2000295	2000-12-15. Visual System
00V387001	2000-11-28. VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
09-022-26	2026-08-04. Service bulletin. This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 09-042/04 12/10/04 DESCRIPTION Some vehicles may exhibit inoperative electric rear window defroster grid lines, integral antenna concerns causing radio reception issues or terminal tabs pulled from the rear window glass. Follow the diagnostic and repair procedures included in this service information to inspect and service rear defroster grid lines, integral antenna concerns or broken terminal tabs.
SA-039-23a	2023-10-05. Service bulletin. Some vehicles may experience exterior trim heat damage when parked near a glass building or Low-E windows. This may be caused by the sun's reflection.
SA-040-21	2021-07-01. Service bulletin. Some vehicles may experience exterior trim heat damage when parked near a glass building or Low-E windows. This may be caused by the sun's reflection.
MT-003-21	2021-06-29. Service bulletin. Some vehicles may experience exterior trim heat damage when parked near a glass building. This may be caused by the suns reflection. If a building creates enough of a curve with a series of flat windows, which act like mirrors, the reflections all converge at one point, focusing and concentrating the light onto the street below.
07-002-19-3616a	2019-12-20. Service bulletin. A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition is usually worse during high humidity conditions. “Mazda Air Cooling Coil Coating” is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years. NOTE: See parts information for Mazda Air Cooling Coil Coating and Kit part numbers.
07-002-19-3616	2019-08-01. Service bulletin. A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition is usually worse during high humidity conditions. "Mazda Air Cooling Coil Coating" is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years.
07-002-18-3432	2018-05-14. Service bulletin. A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/Cevaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition is usually worse during high humidity conditions. "Mazda Air Cooling Coil Coating" is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years. NOTE: See parts information for Mazda Air Cooling Coil Coating and Kit part numbers. This treatment provides a durable coating that will aid to prevent biological reactions that lead to odorconcerns. It is applied to the evaporator in a misted form that is introduced by way of the cabin air filter, the re-circulate door, the blower motor resistor access, or the blower motor air intake. Proper application requires the evaporator surface to be: Relatively clean and free of leaves, dust build-up and debris. Thoroughly dried, and the product cured onto it after application. NOTE: Keep the cooling unit dry by leaving the blower fan ON (at least on low), even if the A/C is not being used. In low humidity (dry) conditions, keep the ventilation system in the "FRESH" mode all the time, or as much as possible. In high humidity conditions, or if the air has a lot of dust or pollen, keep the system in the "RECIRCULATION" mode. A few minutes before reaching a destination, turn the A/C OFF, but leave the blower fan ON. This stops the accumulation of condensation on the evaporator/cooling unit, and it helps dry the inside of the cooling unit. A/C odor is not unique to Mazda vehicles as it will occur in other makes and models. To minimize A/C odor, suggest the following to the customers.
07-002-13-2842	2017-04-24. Service bulletin. A MUSTY/MILDEW TYPE ODOR MAY COME FROM THE VENTS WHEN THE AIR CONDITIONING (A/C) SYSTEM IS OPERATING. IT IS MOST NOTICEABLE WHEN THE A/C IS FIRST TURNED ON. THIS ODOR IS THE RESULT OF MOLD GROWTH IN THE A/C EVAPORATOR/COOLING UNIT WHICH IS CAUSED BY CONDENSATION, DUST, AND POLLEN WITHIN THE COOLING UNIT. THIS CONDITION IS USUALLY WORSE DURING HIGH HUMIDITY CONDITIONS. “MAZDA AIR COOLING COIL COATING” IS AVAILABLE TO ENCAPSULATE THE MOLD TO REDUCE ODORS. IF THE PRODUCT IS PROPERLY APPLIED, IT CAN EFFECTIVELY REDUCE THE MUSTY/MILDEW ODOR FOR UP TO THREE YEARS.NOTE:SEE PARTS INFORMATION FOR MAZDA AIR COOLING COIL COATING AND KIT PART NUMBERS.
RF-04-14R4	2016-03-31. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
0700105	2005-09-27. Service bulletin. FOGGING ON LOWER EXTERIOR OF WINDSHIELD. *TT