2024 Mazda CX-90 Technical Service Bulletins

523 technical service bulletins (TSBs) are on record for the 2024 Mazda CX-90. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10248287Dec 20, 2023Electrical system. This Service Alert provides information for the following symptoms. Although Battery State of Charge (SOC) is full, Maximum Driving Distance Display shows 1 mile (1 km). Although Battery SOC is full, the vehicle cannot drive using EV mode (using electric motor power only) and will use HEV mode (using both electric power and a gas engine. This is caused by low ambient temperature and low battery temperature.
• 10248345Dec 19, 2023Visibility (wipers, defrost, mirrors). Some customers may complain that the driver’s side outer mirror glass vibrates when driving at high speeds at approximately 60 mph (100 km/hour ) or more on bumpy roads such as road joints, coarse-grained paved roads or rough roads. This is caused by insufficient hardness of the adhesive tape between the outer mirror glass holder and the mirror glass.
• 10248341Dec 19, 2023Fuel system. Some vehicles may exhibit a high-frequency noise from the fuel pump. When the fuel temperature is high, vaporization may occur in the return fuel from the pressure regulator valve assembled on the fuel pump unit. In that situation, the spring in the pressure regulator causes self-excited vibration, resulting in the high-frequency noise.
• 10248299Dec 15, 2023Electrical system. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
• 10248292Dec 13, 2023Brakes, Equipment. SSPD1 - 2024 CX-90 (All) - Side Radar Smart Brake Concern: On certain CX-90 vehicles, while driving near any objects with high reflection intensity (such as guardrail, oncoming vehicle etc.), the Front Cross Traffic Alert (FCTA) may often operate falsely, and in rare cases, the Smart Braking System (SBS) may unintendedly activate if certain conditions are met, causing an unexpected warning. The repair will be…
• 10248291Dec 13, 2023Engine cooling, Equipment, Transmission and drivetrain, Other or unknown. Recall 6223j, 6323j, sspd1, sspd2, sspd3, sspd4 - multiple campaigns repair procedure and multiple module reprogramming.
• 10248344Dec 12, 2023Equipment, Electrical system. Some customers may experience no sound from the audio system and/or the audio source cannot be changed. This concern may be caused by the remote tuner not operating properly under certain situations. To eliminate this concern, the remote tuner control software has been modified.
• 10248293Dec 12, 2023Brakes, Equipment. SSPD1 - 2024 CX-90 (All) - Side Radar Smart Brake Concern: On certain CX-90 vehicles, while driving near any objects with high reflection intensity (such as guardrail, oncoming vehicle etc.), the Front Cross Traffic Alert (FCTA) may often operate falsely, and in rare cases, the Smart Braking System (SBS) may unintendedly activate if certain conditions are met, causing an unexpected warning. The repair will be…
• 10248390Dec 8, 2023Steering, Body and structure. Before judging a steering wheel as having premature wear or a defect, first clean the steering wheel as explained in the repair information. Some vehicles may have steering wheel stains caused by chemicals such as hand lotions.
• 10248388Dec 7, 2023Electrical system, Equipment. Qi Wireless Charger symptom troubleshooting
• 10248387Dec 7, 2023Electrical system, Equipment. Frequently Asked Questions (FAQ): General Questions Reception Level Inspection Setup and Getting Started Dealer Processes Registration / Enrollment TCU Activation WI-FI General Informatio 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…
• 10248342Dec 7, 2023Suspension. Some vehicles may exhibit a creaking or squeaking noise from the front of the vehicle when traveling over a bump while turning at low-speed. This is caused by a stick-slip phenomenon occuring between the rubber bushing and the stopper on the rear of the front lower arm (1). A mass production change is under study.
• 10248298Dec 7, 2023Body and structure, Other or unknown. Some vehicles may exhibit the front end of the rear door glass run-channel (1) coming off from the rear door.
• 10248392Dec 5, 2023Engine 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.
• 10248389Dec 5, 2023Equipment, Electrical system. When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.. CAUTION: DO NOT swap TCU with another vehicle as the TCU is VIN locked after activation. A TCU swap with another vehicle will disable Connected Services on both vehicles. If…
• 10248289Dec 5, 2023Equipment. This Service Alert provides additional guidance about operation and procedure of the Driver Personalization System from the start of driver recognition to the end of the driving position restoration.
• 10248348Dec 1, 2023Visibility (wipers, defrost, mirrors), Equipment. Some customers may complain about color discrepancies (brightness differences) of the image displayed on the screen when using the 360°view monitor. As this phenomenon is not a system failure, do not make any repairs or replace any parts.
• 10246149Nov 30, 2023Seats. Some customers may complain about wrinkles on leather seat cushion trim surface.
• 10246148Nov 30, 2023Electrical system, Latches, locks and linkages, Body and structure. Some customers may complain that the power liftgate may open unintentionally at a stop or while parking. This may be caused by the power liftgate button in the remote transmitter being pressed unintentionally in a pocket or a bag. To help with this concern, the control software of the Body Control Module (BCM) has been modified to optimize the operation parameter for the power liftgate button in the remote…
• 10246124Nov 30, 2023Brakes, Steering, Wheels. Some vehicles may exhibit a rubbing noise from the front tire when driving with the steering turned all the way. This may be caused by the ABS harness interfering with the front tire when the steering wheel is fully turned. To eliminate this concern, the length of the ABS harness and the shape of the harness bracket have been modified.
• 10246212Nov 20, 2023Other or unknown, Electrical system. Telematics Malfunction. Have the Vehicle Inspected error message. Master Warning light ON, DTC U3000:04 (Telematics communication unit internal malfunction) is stored.
• 10246133Nov 20, 2023Seats. At PDI or when new vehicle is delivered, some customers may complain about wrinkles on the leather seat cushion and/or seat back surface.
• 10246252Nov 17, 2023Engine cooling, Forward collision avoidance, Equipment, Transmission and…. Recall 6223j, 6323j, sspd1, sspd2, sspd3, sspd4 - multiple campaigns repair procedure and multiple module reprogramming.
• 10246216Nov 15, 2023Brakes, Equipment. This information will give you the necessary knowledge to respond to customers concerns of Smart Brake Support (SBS) unintended braking. By educating the customer on the system operation, it should reduce their anxiety or distrust of the vehicle.
• 10246144Nov 15, 2023Electrical system, Visibility (wipers, defrost, mirrors), Other or unknown. Some customers may experience that the passenger-side outer door mirror glass tilts down when unlocking and opening the driver's door. This is caused by a door-electrical supply unit malfunction due to changes in the vehicle power conditions. To eliminate this concern, the control software of the door-electrical supply unit (passenger's side) has been modified.
• 10246147Nov 14, 2023Equipment, Electrical system. Some customers may experience no sound from the audio system and/or the audio source cannot be changed. This concern may be caused by the remote tuner not operating properly under certain situations. To eliminate this concern, the remote tuner control software has been modified.
• 10246250Nov 13, 2023Forward collision avoidance, Brakes. SSPD1 - 2024 CX-90 (All) - Side Radar Smart Brake Concern: On certain CX-90 vehicles, while driving near any objects with high reflection intensity (such as guardrail, oncoming vehicle etc.), the Front Cross Traffic Alert (FCTA) may often operate falsely, and in rare cases, the Smart Braking System (SBS) may unintendedly activate if certain conditions are met, causing an unexpected warning. The repair will be…
• 10246214Nov 8, 2023Transmission and drivetrain. Some vehicles may experience an oil leak from the front differential, vehicles having this concern should be repaired using the repair information below.
• 10246211Nov 8, 2023Other or unknown, Electrical system. Some customers may experience a warning sound and instrument cluster message "Battery Saving Mode. Drive Vehicle to Charge Battery." This message may appear under the following conditions: Washing Car lunch in car with key ON Showroom vehicle Door left open Doors opened several times prior to starting vehicle After an external battery charge
• 10246140Nov 8, 2023Electrical system, Latches, locks and linkages, Other or unknown. Some vehicles may exhibit that the power liftgate cannot be opened while stuck in an partially latched or fully opened/closed position, or it may reverse and open just before fully closing. with the following DTCs possibly stored in memory.
• 10246122Nov 8, 2023Suspension. Some customers may complain about squeaking noise coming from the rear of vehicle when driving on bumpy roads and turning. This is caused when the lubricant coating comes out of the bump stopper, changing the resistance between the damper rod and bump stopper. To eliminate this concern, a mass production change is under study. Customers having this concern should have their vehicle repaired using the following…
• 10246121Nov 7, 2023Equipment, Electrical system. The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this Service Bulletin to test Mazda vehicle batteries and to generate a Warranty Code.
• 10246209Nov 6, 2023Equipment, Exterior lighting, Transmission and drivetrain, Lane departure…. 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.
• 10246215Nov 4, 2023Engine 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.
• 10246251Nov 2, 2023Electrical system, Equipment, Engine cooling, Transmission and drivetrain. Recall 6223j, 6323j, sspd1, sspd2, sspd3, sspd4 - multiple campaigns repair procedure and multiple module reprogramming.
• 10244576Oct 27, 2023Equipment, Transmission and drivetrain, Engine cooling, Other or unknown. Recall 6223j, 6323j, sspd1, sspd2, sspd3, sspd4 - multiple campaigns repair procedure and multiple module reprogramming.
• 10244554Oct 27, 2023Engine 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.
• 10244575Oct 26, 2023Engine cooling, Transmission and drivetrain, Equipment. Recall 6223j, 6323j, sspd1, sspd2, sspd3, sspd4 - multiple campaigns repair procedure and multiple module reprogramming.
• 10244557Oct 26, 2023Brakes, Equipment. SSPD1 - 2024 CX-90 (All) - Side Radar Smart Brake Concern: On certain CX-90 vehicles, while driving near any objects with high reflection intensity (such as guardrail, oncoming vehicle etc.), the Front Cross Traffic Alert (FCTA) may often operate falsely, and in rare cases, the Smart Braking System (SBS) may unintendedly activate if certain conditions are met, causing an unexpected warning. The repair will be…
• 10244556Oct 26, 2023Transmission and drivetrain. SSPD2 - 2024 CX-90 (All) - OBD II Transmission Solenoid Detection Concern: On certain CX-90 vehicles, the judgement of solenoid electrical failure may not be made correctly due to inappropriate control program of TCM. The correct judgement cannot be made and even if the solenoid is returned to the normal condition after the electrical failure is judged. The repair will be reprogramming the TCM with the modified…
• 10244555Oct 26, 2023Engine cooling, Visibility (wipers, defrost, mirrors). 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.
• 10244669Oct 23, 2023Equipment, Engine cooling. 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
• 10244573Oct 23, 2023Electrical system, 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.
• 10244565Oct 19, 2023Transmission and drivetrain. Some customers may report they intermittently cannot shift out of Park (P) after starting the vehicle.
• 10244564Oct 19, 2023Visibility (wipers, defrost, mirrors), Electrical system. Some customers will report their window will not auto-close. This may be caused by the vehicle learning the window current draw incorrectly because the door moved when the initialization was performed.
• 10244584Oct 18, 2023Visibility (wipers, defrost, mirrors), Electrical system. Some customers may experience that the passenger-side outer door mirror glass tilts down when unlocking and opening the driver's door. This is caused by a door-electrical supply unit malfunction due to changes in the vehicle power conditions. To eliminate this concern, the control software of the door-electrical supply unit (passenger's side) has been modified.
• 10244577Oct 18, 2023Electrical system. While idling or parking, some customers may experience the i-ACTIVSENSE warning appears in the instrument cluster and the parking sensor OFF switch in the cluster switch illuminates. Upon inspection, any of the following DTC B1B** are stored in memory.
• 10244566Oct 17, 2023Body and structure. Some customers or dealerships will report a gap at the door garnish (trim).
• 10244574Oct 16, 2023Seats. Some customers may report issues with third-row seats, loose or damaged trim, not folding down, binding when folding up, and other concerns. NOTE: The trim is not a serviceable part and only available with the third-row seat assembly. For more information, please see Service Alert SA-063/23 in MGSS for more information.
• 10244569Oct 16, 2023Equipment. This Service Alert provides additional guidance about operation and procedure of the Driver Personalization System from the start of driver recognition to the end of the driving position restoration.

← All problems reported for the 2024 Mazda CX-90