Service bulletins for the 2024 Mazda CX-90
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.
552 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Engine are shown. Show all
| SA-009-24a | 2024-03-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Frequently Asked Questions (FAQ): General Questions, Reception Level Inspection, Setup and Getting Started, Dealer Processes, Registration / Enrollment, TCU Activation, WI-FI General Information, Conditions for Remote Engine Start Will Not Function, WI-FI How-To Conditions for Remote Engine Start Function Will turn engine OFF, WI-FI Trial Period, Deactivation Mode, Interacting With The App, Educational Videos, Service Issues, Resources, Troubleshooting Page. |
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| SA-009-24 | 2024-03-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Frequently Asked Questions (FAQ): General Questions, Reception Level Inspection, Setup and Getting Started, Dealer Processes, Registration / Enrollment, TCU Activation, WI-FI General Information, Conditions for Remote Engine Start Will Not Function, WI-FI How-To Conditions for Remote Engine Start Function Will turn engine OFF, WI-FI Trial Period, Deactivation Mode, Interacting With The App, Educational Videos, Service Issues, Resources, Troubleshooting Page. |
| SA-011-24 | 2024-03-06. Service bulletin. STEERING; SERVICE BRAKES, HYDRAULIC; WHEELS; TIRES; ENGINE AND ENGINE COOLING; POWER TRAIN. Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not recommended. These services are unnecessary and create unneeded expenses for your customers. |
| SSPD1-D4d | 2024-03-06. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. 2nd Warning, Warranty Claim Denials - SAFETY RECALLS 6223J, 6323J, and SPECIAL SERVICE CAMPAIGNS SSPD1, SSPD2, SSPD3, SSPD4 - MULTIPLE CAMPAIGNS REPAIR PROCEDURE AND MULTIPLE MODULE REPROGRAMMING. |
| 01-002-24 | 2024-03-05. Service bulletin. ENGINE AND ENGINE COOLING. Some customers may experience a check engine light illumination at idle while stopped with DTC P0300:00 stored, resulting in rough idle conditions. • P0300:00: Random misfire detected This concern is caused by improper engine control in the idle range. To eliminate the concern, the PCM control software has been modified. |
| SA-004-24 | 2024-02-02. Service bulletin. ENGINE AND ENGINE COOLING. Click here to view coolant bleeding procedure. |
| SA-081-23 | 2024-01-06. Service bulletin. ENGINE AND ENGINE COOLING. There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service Alert is to inform you about the water pump sealing mechanism and the criteria if replacement is necessary or not. |
| 03-001-23 | 2024-01-05. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Some vehicles may experience differential oil leaking from the oil seal (RH side) at the front differential. This is caused by an inappropriate assembly process of the front differential to the oil pan (vehicle side). To eliminate this concern the front differential assembly process has been changed. |
| SSPD4a | 2024-01-04. Service bulletin. ENGINE AND ENGINE COOLING. SSPD4- 2024 CX-90 (MHEV) - OBD II Water Temp Sensor Detection Concern: The second water temperature sensor circuit failure may not be diagnosed correctly and also the execution rate of the evaporative monitor in the field may not be calculated correctly. The repair will be reprogramming the PCM with the modified software with MMDS, using MDARS. There are 9,991 vehicles in the campaign. |
| SSPD3a | 2024-01-04. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REFRIGERANT HOSES AND FITTINGS. SSPD3- 2024 CX-90 (PHEV) - OBD II AC Refrigerant Pressure Detection Concern: On certain CX-90 vehicles, air conditioner refrigerant pressure malfunction may not be judged correctly due to inappropriate failure judgement program of PCM. The repair will be reprogramming the PCM and ECU with the modified software with MMDS, using MDARS. There are 6,089 vehicles in the campaign. |
| SSPD1-D4c | 2024-01-04. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. RECALL 6223J, 6323J, SSPD1, SSPD2, SSPD3, SSPD4 - MULTIPLE CAMPAIGNS REPAIR PROCEDURE AND MULTIPLE MODULE REPROGRAMMING. |
| SSPD1-D4b | 2023-12-05. Service bulletin. POWER TRAIN; FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. RECALL 6223J, 6323J, SSPD1, SSPD2, SSPD3, SSPD4 - MULTIPLE CAMPAIGNS REPAIR PROCEDURE AND MULTIPLE MODULE REPROGRAMMING. |
| SSPD1-D4a | 2023-12-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. RECALL 6223J, 6323J, SSPD1, SSPD2, SSPD3, SSPD4 - MULTIPLE CAMPAIGNS REPAIR PROCEDURE AND MULTIPLE MODULE REPROGRAMMING. |
| SA-076-23 | 2023-12-05. Service bulletin. ENGINE AND ENGINE COOLING. Some vehicles may exhibit the CHECK ENGINE light turning ON with DTC P0AB9:00 (PCM Start Signal System) stored in memory. This may be caused by a PCM Start Signal System error detected due to improper PCM logic. To eliminate this concern, the control software of the PCM has been modified. |
| SA-017-23g | 2023-12-05. Service bulletin. LANE DEPARTURE; EXTERIOR LIGHTING; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. The CX-90 has new and revised features that are different from previous models and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns. |
| SA-032-23a | 2023-11-02. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices. |
| SA-009-23i | 2023-11-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF |
| MULTI SSP RELEAS | 2023-11-01. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN; UNKNOWN OR OTHER; EQUIPMENT ADAPTIVE/MOBILITY. RECALL 6223J, 6323J, SSPD1, SSPD2, SSPD3, SSPD4 - MULTIPLE CAMPAIGNS REPAIR PROCEDURE AND MULTIPLE MODULE REPROGRAMMING. |
| MULTI SSP REPAIR | 2023-11-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. RECALL 6223J, 6323J, SSPD1, SSPD2, SSPD3, SSPD4 - MULTIPLE CAMPAIGNS REPAIR PROCEDURE AND MULTIPLE MODULE REPROGRAMMING. |
| SA-051-23a | 2023-11-01. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; ENGINE AND ENGINE COOLING. Some customers may experience a vehicle no start (no "Ready-ON") due to the 12V battery discharged or the High Voltage (HV) battery discharged. This may be caused by: Ignition left ON when exiting the vehicle (exiting the vehicle during "Ready-On"). Door/liftgate opened multiple times without ignition "Ready-ON" or driving vehicle. Installation of aftermarket electronic devices. To minimize THE battery drain concern, ensure that the vehicle shift selector is in Park when exiting and verify the ignition is turned OFF when exiting. NOTE: If multiple door/liftgate opening without "Ready-ON', drive vehicle to charge 12V battery. |
| SSPD3 | 2023-11-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. SSPD3- 2024 CX-90 (PHEV) - OBD II AC Refrigerant Pressure Detection Concern: On certain CX-90 vehicles, air conditioner refrigerant pressure malfunction may not be judged correctly due to inappropriate failure judgement program of PCM. The repair will be reprogramming the PCM and ECU with the modified software with MMDS, using MDARS. There are 6,089 vehicles in the campaign. |
| SSPD4 | 2023-11-01. Service bulletin. ENGINE AND ENGINE COOLING. SSPD4- 2024 CX-90 (MHEV) - OBD II Water Temp Sensor Detection Concern: The second water temperature sensor circuit failure may not be diagnosed correctly and also the execution rate of the evaporative monitor in the field may not be calculated correctly. The repair will be reprogramming the PCM with the modified software with MMDS, using MDARS. There are 9,991 vehicles in the campaign. |
| SA-052-23 | 2023-10-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Some customers may experience any of the following: Multiple Warning Lights On Infotainment center display blank Engine no start unless the key transmitter is placed near the start button. Interior lights do not illuminate. DTC P2507:00 - PCM, PCM POWER SYSTEM: (LOW INPUT) stored. DTC U0156:00 - PCM, CAN communication system, Communication error with CMU (Connectivity Master Unit). This may be caused by Fuse F1 not fully seated or poor terminal tension. |
| SA-017-23f | 2023-10-05. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; LANE DEPARTURE; EQUIPMENT ADAPTIVE/MOBILITY. The CX-90 has new and revised features that are different from previous models and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns. |
| SA-009-23h | 2023-09-05. Service bulletin. EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.