Service bulletins for the 2019 Mazda Mazda3
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.
827 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Lighting are shown. Show all
| 09-009-20-3665 | 2020-02-04. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Some customers may notice that the rear turn lights only flash once instead of twice for the answer-back when a door unlock operation is performed using the remote transmitter button or the touch sensor. The concern occurs only once after the vehicle is in sleep mode (5 minutes or more after the doors are locked). This is caused by improper control logic of the electrical supply unit (ESU). To correct this issue, the ESU software has been modified. |
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| 09-036-19-3623a | 2019-12-20. Service bulletin. EQUIPMENT; EXTERIOR LIGHTING; VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY. Some customers may complain about an instrument cluster warning message "Auto Light System Malfunction. Turn On/Off Lights Manually". DTC B10AD:09 (Humidity sensor/solar radiation sensor/auto light sensor/rain sensor malfunction) may also be stored with the exterior light warning indicator light ON. This is caused by the rain sensor detecting a temperature higher than the operation range and temporarily stopping the auto light system. As a fail-safe, the low beam headlights are turned on. The auto light system will start to operate normally when the A/C is turned on and the interior temperature drops. To correct this concern, the heat resistance performance of the rain sensor has been enhanced. |
| 09-036-19-3623 | 2019-10-30. Service bulletin. EXTERIOR LIGHTING. Some customers may complain about an instrument cluster warning message "Auto Light System Malfunction. Turn On/Off Lights Manually". DTC B10AD:09 (Humidity sensor/solar radiation sensor/auto light sensor/rain sensor malfunction) may also be stored with the exterior light warning indicator light ON.display. This is caused by the rain sensor detecting a temperature higher than the operation range and temporarily stopping the auto light system. As a fail-safe, the low beam headlights are turned on. The auto light system will start to operate normally when the A/C is turned on and the interior temperature drops. To correct this concern, the heat resistance performance of the rain sensor has been enhanced. |
| 09-003-19-3555a | 2019-03-20. Service bulletin. EXTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:TAIL LIGHTS. Some customers may complain of condensation/fog inside the front (headlamp/headlight) or rear (taillamp/taillight) combination lights. The recent new models have been fitted with a clear lens which can cause the symptom to be more noticeable, however, it does not affect the performance of the light. This condensation/fog is a natural phenomenon that occurs when there is a fairly large temperature difference between the inside and the outside of the light housing. It is normal for very small water drops to appear in certain locations on the light units where the air is stagnant (condensation), making the lens look whitish (fog). This happens mostly in the corners and narrow spaces, and will typically clear during warmer ambient temperatures, or when the lights have been on for some time. |
| 09-003-19-3555 | 2019-02-19. Service bulletin. EXTERIOR LIGHTING. Some customers may complain of condensation/fog inside the front (headlamp/headlight) or rear (taillamp/taillight) combination lights. The recent new models have been fitted with a clear lens which can cause the symptom to be more noticeable, however, it does not affect the performance of the light. This condensation/fog is a natural phenomenon that occurs when there is a fairly large temperature difference between the inside and the outside of the light housing. It is normal for very small water drops to appear in certain locations on the light units where the air is stagnant (condensation), making the lens look whitish (fog). This happens mostly in the corners and narrow spaces, and will typically clear during warmer ambient temperatures, or when the lights have been on for some time. |
| 630514 | 2018-11-13. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING. "Adaptive Headlight Malfunction in Cold Weather. * In very cold weather conditions (32ºF or below) with the light switch in the automatic position, the CCM (Check Control Message) ""Adaptive headlight malfunction"" is displayed. * When the CC message is displayed, all the lights continue to function. * When switching the headlights to high beam and the headlight unit is cold, the mechanism inside the headlight is too stiff to move. Software error in TMS 3 (headlight driver module AHL, xenon headlight)" |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.