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.

• 11013657Jan 15, 2025Electrical system. Some customers may experience that the out-of-area (reception area) type auto lock function sometimes fails. When the front door is being closed with a hand touching one or both of the touch sensors on the front outer handle, the out-of-area (reception area) type auto lock function may fail. Control software of the LF control unit (LFU) has been modified.
• 11013566Jan 11, 2025Seats, Body and structure. Some vehicles may experience the second-row seat (configured as captain chairs or 60/40 bench) not sliding with the walk-in lever operation, although it slides with the sliding lever. The link bracket (2) may interfere with the kick plate (1) while operating the recline function, causing the deformation of the link bracket and preventing it from pulling the cable properly to unlock the seat for sliding.
• 11013565Jan 11, 2025Other or unknown. Some customers may complain that the A/C is not cold enough. Upon inspection, a coolant leak (1) from the cooler hose (LO) (2) is confirmed.
• 11013564Jan 11, 2025Engine, Electrical system. [TEMPORARILY SUSPENDED] Some vehicles may exhibit check engine light turned on at engine startup, with DTC P0531:00 stored in memory. DTC P0531:00 [PCM] - Refrigerant pressure sensor No.1 system: Function malfunction This is caused by improper control logic of the PCM and the dash-electrical supply unit (Dash-ESU). To eliminate this concern, the control logic of the PCM and the Dash-ESU has been modified.
• 11013570Jan 9, 2025Engine. Some vehicles may experience the CHECK ENGINE light ON and the message "ENGINE HYBRID SYSTEM AND i-STOP MALFUNCTION" displayed in the instrument cluster with one or both of the following DTCs: P0DAB:17 is set in the MHB module. P0DAB:00 is set in the SGC2/DMCM module.
• 11013563Jan 7, 2025Electrical system, Engine. Some vehicles may exhibit check engine light turned on at engine startup, with DTC P0531:00 stored in memory. DTC P0531:00 [PCM] - Refrigerant pressure sensor No.1 system: Function malfunction This is caused by improper control logic of the PCM and the dash-electrical supply unit (Dash-ESU). To eliminate this concern, the control logic of the PCM and the Dash-ESU has been modified.
• 11012340Dec 24, 2024Other or unknown, Engine. Some vehicles may exhibit check engine light turned on at engine startup, with DTC P0531:00 stored in memory. DTC P0531:00 [PCM] - Refrigerant pressure sensor No.1 system: Function malfunction. This is caused by improper control logic of the PCM and the dash-electrical supply unit (Dash-ESU). To eliminate this concern, the control logic of the PCM and the Dash-ESU has been modified.
• 11012346Dec 14, 2024Engine, Transmission and drivetrain. Some vehicles may experience the CHECK ENGINE light ON and the message "ENGINE HYBRID SYSTEM AND i-STOP MALFUNCTION" displayed in the instrument cluster with one or both of the following DTCs: P0DAB:17 is set in the MHB module. P0DAB:00 is set in the SGC2/DMCM module.
• 11012339Dec 12, 2024Other or unknown. Some customers may experience that the air conditioning system stops working. Upon inspection, DTC B1082:19 [DASH_ESU] (Air mix actuator (RH) circuit malfunction) is stored in memory. DTC B1082:19 is stored as a past malfunction and continues in one drive cycle, then returns normal at the next drive cycle. Due to the electrical noise caused when the air mix actuator is driven too quickly, a false malfunction may be…
• 11012345Dec 6, 2024Electrical system, Other or unknown, Engine. Frequently Asked Questions (FAQ)
• 11012341Dec 6, 2024Body and structure. Some customers may complain about clicking noise coming from the liftgate latch-and-lock actuator (lock actuator) when driving on bumpy roads. This is caused by stick-slip friction between the lock actuator and the lock striker due to wear debris originating from the friction between them. To eliminate this concern, the lock striker coating has been changed to prevent coating wear.
• 11010987Nov 28, 2024Other or unknown. Some customers may experience a chatter (metallic knocking) noise from the underbody area when driving on rough roads. This may be caused by the contact between overlapping sections of the exhaust system insulators (Front No.1 and No.2) due to vibration. There is no mass production change planned.
• 11010989Nov 23, 2024Other or unknown. Some customers may complain that the heater does not work properly and that a warning about a hybrid abnormality appears on the Instrument Cluster. Upon inspection, the vehicle may have DTC P0AA6:00 (High voltage insulation malfunction: Decrease in vehicle insulation resistance) stored in memory. This may be caused by an internal meltdown of the water heater. To eliminate this concern, the water heater heat…
• 11011135Nov 22, 2024Electrical system. Some customers may experience the audio sound pausing when the engine restarts after i-stop operation under the following situations. The symptoms are caused by an improper part installation in the audio amplifier. A voltage drop error detection of the power source may be too sensitive.
• 11010993Nov 21, 2024Body and structure. Some vehicles may exhibit misalignment (in any direction) between the rear end of the front door glass run-channel (1) and the front end of the rear door glass run-channel (2).
• 11011138Nov 15, 2024Other or unknown. 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 Climate Control 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 11010995Nov 13, 2024Engine, Fuel system, Electrical system. The CX-70 and CX-90 have 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.
• 11010988Nov 13, 2024Other or unknown. Some vehicles may exhibit a loud vibration noise when the electric A/C compressor is operating. Due to processing variation of the counter-balance bushing (a weight to balance eccentric rotation) installed in the electric compressor, some of the bushing strongly interferes with the shaft, resulting in the humming noise. To eliminate this concern, the machining accuracy of the counter-balance bushing has been…
• 11011141Nov 8, 2024Other or unknown. Some customers may report concerns with interior upholstery surface stains particularly on high contact areas (e.g.: seats, steering wheel, door panels, shifter...etc.). This may be caused by skin oils or chemicals such as hand lotions.
• 11011140Nov 5, 2024Electrical 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.
• 11009639Oct 25, 2024Body and structure. Some vehicles may experience stains appearing on the hood, roof and/or trunk of the vehicle. This concern is most likely to be found in a cold weather areas just after the RAPGARD is removed at PDI. This may be caused by moisture which has been trapped and condensed between the paint and the RAPGARD. These types of stains can be removed with a heat gun or an infrared drier.
• 11009652Oct 24, 2024Transmission and drivetrain. Some vehicles may experience a transmission warning light on or flashing in the instrument cluster with no DTCs after a full transmission replacement. This will affect the configuration or learning with MDARS.
• 11009642Oct 24, 2024Transmission and drivetrain. Due to a manufacturing change, the CX-70/CX-90 transmission has undergone a transmission part design change when replacing the transmission assembly. Old design originally required a coolant line running to the top of the bell housing, the new design has omitted the hole and need for the coolant line. The new/superseded design can be used in place of the old/original design and the coolant hose is no longer needed…
• 11009650Oct 23, 2024Electrical 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.
• 11009631Oct 23, 2024Transmission and drivetrain. Some customers may complain about a delayed response during re-acceleration after deceleration. The delayed response during idle restart after i-stop, just before the vehicle stops, may cause this symptom. To eliminate this concern, the control software of the TCM has been modified.
• 11009646Oct 16, 2024Body and structure. Some vehicles may exhibit poor hands-free liftgate operation after a Mazda genuine trailer tow hitch accessory installation. IMPORTANT: When a Mazda genuine trailer tow hitch is installed on a CX-90 equipped with hands-free liftgate function, the sensing area is reduced due to the mechanical structure of the hitch. The hands-free liftgate’s optimal sensing area below the rear bumper is shown in green boxes in the…
• 11009633Oct 16, 2024Body and structure. Some vehicles may exhibit a rattle noise from the panorama sunroof. This may be caused by: Body vibration while driving and/or outside-temperature changes creating slight gaps between the plastic grommets and the roof reinforcement cover during use. • A slight gap between the drip rail and the roof reinforcement, causing interference. • To eliminate this concern, the shape of the panorama sunroof unit will be…
• 11009645Oct 11, 2024Engine, Electrical system. Some customer 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).
• 11009638Oct 11, 2024Body and structure. Some vehicles may exhibit a rattle noise from the rear end of the rear glass panel on the panorama sunroof. This may be caused by body vibration while driving and slight gaps (1) between the fastener mounting to the headliner and the sunroof frame. To eliminate this concern, the fastener has been modified to restrain the rattling. NOTE: For 2024 CX-90 with a rattle noise in the center of the sunroof (the front…
• 11009632Oct 10, 2024Other or unknown. Some vehicles may exhibit different air temperature coming from the center ventilation grille on the left and right. This is caused by the mixing control of hot and cold air not being correct. To eliminate this concern, the air control unit has been modified to improve the air mixing control by adjusting the vent door's opening angle.
• 11009655Oct 9, 2024Electrical system. This service information provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the batteries periodically according to the repair procedure.
• 11009656Oct 8, 2024Transmission and drivetrain. This Parts Flash replaces Parts Flash 24-01R1 dated September 19, 2024. Due to a manufacturing change, the CX-70 and CX-90 transmission has undergone a transmission part design change when replacing the transmission assembly. The new/superseded design can be used in place of the old/original design as the coolant hose (D-Code 21-5LX) is no longer needed to be used. Transmission part numbers beginning with…
• 11009648Oct 5, 2024Transmission and drivetrain. Some customers may experience a grunt or grind noise when the transmission shifts from 1st gear to 2nd gear. The grunt-type noise is produced during the 2nd gear engagement. This issue will not affect the driveability or reliability of the vehicle. The vehicle is safe to drive. It is OK to release the vehicle back to the customer.
• 11009644Oct 5, 2024Brakes. Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to the following information to understand why symptoms may occur, and to better assist the customer in resolving their specific brake concern.
• 11009640Oct 3, 2024Other or unknown. Mazda Connect Infotainment System. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7000C0A-NA11_10014). NOTE: If current version is not 7000C0A-NA11_*****, this TSB is not applicable. NOTE: iPod, iPhone, and Apple CarPlayTM are registered trademarks of Apple Inc. Android and Android AutoTM are registered trademarks of Google LLC. The Bluetooth®…
• 11009657Oct 2, 2024Body and structure. The right-side hood strut features a two-step mechanism for opening and closing. The first step is for general, the second step is for “service mode”. When you open the hood, after completing the hood in service mode, the stay damper might rattle because it loses internal pressure support to the hoodfender- strut system. This is normal operation and not a sign of any malfunction, no parts should be replaced.
• 11008430Sep 26, 2024Brakes. 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.
• 11008421Sep 26, 2024Visibility (wipers, defrost, mirrors). Some customers may complain about a low washer fluid level warning message even though a visual inspection of the washer fluid tank looks like it still has a fair amount of fluid in it. With the CX-90 and CX-70 introduction of the front-engine and rear-wheel-drive layout, the washer tank shape was changed from a vertical to a horizontal type. This makes it look like there is still enough liquid left if viewed from…
• 11008568Sep 25, 2024Electrical system. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:00-TCU (Emergency call unit/telematics communication unit internal malfunction) or 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…
• 11008580Sep 24, 2024Electrical system. Mazda Connect Services - Frequently Asked Questions (FAQ)
• 11008574Sep 24, 2024Other or unknown, Electrical system. Some customers may experience a Connected Vehicle failure. The MyMazda App may display an Error Code. This document provides Error Code description and recovery information to assist with repairs.
• 11008427Sep 24, 2024Engine, Electrical system. After an HV inverter replacement, there is no instruction in the WSM to perform Initial Learning of the Electric Motor Speed Sensor. This is required after replacing the inverter or electric motor. As a result, when attempting to start the vehicle, the Internal combustion (ICE) engine will start and then stop with DTC P0C17 stored. If this DTC is set, refer to P0C17:00 [SGC2/DMCM (e-SKYACTIV PHEV)] in the…
• 11008578Sep 13, 2024Electrical 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.
• 11008577Sep 12, 2024Other or unknown. Some customers may complain about scratches on the instrument cluster lens.
• 11008576Sep 12, 2024Electrical system. Qi Wireless Charger symptom troubleshooting.
• 11008426Sep 12, 2024Body and structure. Some vehicles may exhibit poor hands-free liftgate operation after a Mazda genuine trailer tow hitch accessory installation. IMPORTANT: When a Mazda genuine trailer tow hitch is installed on a CX-90 equipped with hands-free liftgate function, the sensing area is reduced due to the mechanical structure of the hitch. The hands-free liftgate’s optimal sensing area below the rear bumper is shown in green boxes in the…
• 11008420Sep 12, 2024Engine, Electrical system. Some customer 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).
• 11008579Sep 11, 2024Electrical system. Mazda Connect Services - Frequently Asked Questions (FAQ)
• 11008575Sep 11, 2024Electrical system. Some customers may complain about the Active Driving Display not displaying turn by turn (TBT) travel direction or navigation information.
• 11008573Sep 11, 2024Electrical system, Exterior lighting, Engine. 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 Climate Control

← All problems reported for the 2024 Mazda CX-90