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.

• 11003354Jun 22, 2024Other or unknown, Electrical 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.
• 11003222Jun 22, 2024Transmission and drivetrain. Some customers may complain about the following symptoms: A bark, hoot, crunch, chirp, honk noise and/or vibration during 1-2 shift while accelerating from a complete stop at operating temperature. A vibration when engine restarting by i-stop function. NOTE: See attached video file "Sample Noise" at end of document. This shift noise and/or vibration may be caused by improper hydraulic pressure control of the…
• 11003356Jun 19, 2024Body and structure. Some customers may experience the following concerns: The liftgate or the trunk lid will not unlock even when the vehicle is parked and the ignition is off. If the engine is running (POWER ON) or the ignition is turned to on (READY ON), it will unlock. The auto close operation of the power liftgate is not performed (The liftgate can be closed manually). To eliminate this concern, the control software of the DSC…
• 11003228Jun 19, 2024Steering. Some customers may experience that, after overtaking a truck and moving in front of the truck with turn signal on, the steering assist pushes the vehicle back to the overtaking lane even without BSM warning light turning on in the outer mirror. This may be caused by an improper detection by the side radar sensors occurring in a specific driving environment. To eliminate this concern, the control software of the…
• 11003362Jun 18, 2024Body and structure, Other or unknown. The image and text are incorrect in the original installation instruction for Section 9, step 16 where it shows a square head nut, washer, and flange nut. The washer is not used in this portion of the installation and the image and bolt assembly description is incorrect The correct image shown below in image on the right.
• 11003225Jun 13, 2024Other or unknown, Electrical system. Some customers may experience a warning message for the approaching vehicle audible system (AVAS) right after the ignition is turned on (POWER ON) while a loud noise, such as a horn, occurs close to the vehicle. Upon inspection, DTC B1A03:2B [ISB_AMP] (AVAS device circuit malfunction) is stored in memory. This may be caused by an internal initial diagnosis in the notification and warning amplifier detecting a false…
• 11003219Jun 12, 2024Engine, Transmission and drivetrain, Other or unknown. Some customers may experience a driving feel concern due to a late response to start the engine (and cancel EV mode) while climbing uphill in EV mode under a low battery SOC (30% or lower) condition. This may be caused by improper control software of the PCM. To eliminate this concern, the control software of the PCM has been modified.
• 11003227Jun 11, 2024Body and structure. Some customers may complain that the rear outer handle is difficult to operate or that it gets stuck when released after being pulled once. This is caused when the rear outer handle and the rear handle bracket swell up from absorbing water and the space between them is reduced, resulting in friction and resistance when returning to the rest position after the handle has been pulled.
• 11003398Jun 7, 2024Other or unknown. 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.
• 11003397Jun 7, 2024Wheels. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains or discoloration.
• 11003396Jun 7, 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.
• 11003359Jun 7, 2024Other or unknown. A kick-down switch has been adopted to determine when the customer has fully depressed the throttle pedal for maximum acceleration. A load can be felt while the accelerator pedal is being depressed. When the accelerator pedal is depressed further, the kick-down switch is activated and a click is felt. The driver can control the kick-down by knowing the amount of accelerator depression. An electrical signal is not…
• 11003357Jun 7, 2024Electrical system. Some customers may experience the following symptoms: No sound from some audio sources (AM, FM, SiriusXM®) after turning the ignition on. Radio station selection (AM, FM, SiriusXM®) changes unintentionally after turning the ignition on. Audio source cannot be changed. Diagnosing according to MGSS online does not solve the problem. These concerns may be caused by the remote tuner not operating properly under certain…
• 11000778Jun 1, 2024Body and structure. 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. Explain the cause of this occurrence to the customer as follows: The 360°view monitor is a system that provides a complete picture of the vehicle surroundings by combining the…
• 11000775Jun 1, 2024Engine. 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.
• 11000772Jun 1, 2024Other or unknown. Some customers may complain that the ambient temperature on the instrument cluster is displayed more than 50 °F (10 °C) lower than the actual temperature, resulting in insufficient performance of the air conditioning. This is caused by inappropriate soldering in the ambient temperature sensor. To eliminate this concern, the soldering process has been enhanced at the supplier.
• 11000686Jun 1, 2024Exterior lighting, Visibility (wipers, defrost, mirrors). Some vehicles may experience a warning light ON, warning messages, or a headlamp concern. After checking the vehicle, DTC B10A3:86 may be stored with or without other DTCs. Follow the repair procedure below for B10A3:86. Customers having this concern should have their vehicle repaired using the following repair procedure.
• 11000670May 31, 2024Fuel system, Engine. Some customers may complain about a noise from the engine compartment at idle. This may be caused by the fuel injection learning cycle at idle from the high pressure fuel pump. To eliminate this concern, the control software of the PCM has been modified.
• 11000773May 30, 2024Seat belts. Some customers may complain that the warning sound in the passenger compartment (notifies i-ACTIVSENSE warnings, seat belt warning etc.) is too loud. Some of the volume settings in the notification and warning amplifier are not properly set. The control software of the notification and warning amplifier has been modified to eliminate this concern.
• 11000688May 30, 2024Body and structure, Other or unknown. 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.
• 11000671May 30, 2024Transmission and drivetrain. Some customers may complain about the following symptoms: A bark, hoot, crunch, chirp, honk noise and/or vibration during 1-2 shift while accelerating from a complete stop at operating temperature. • A vibration when engine restarting by i-stop function. • NOTE: See attached video file "Sample Noise" at end of document. This shift noise and/or vibration may be caused by improper hydraulic pressure control of the…
• 11000352May 24, 2024Transmission and drivetrain. Some technicians may notice an oil seepage from the A/T at the thermo valve when the vehicle under covers are removed. This is caused by insufficient tightening torque of the thermo valve. To eliminate this concern, the tightening torque of the thermo valve has been modified from 52-59 ft-lbs (70-80 N·m) to 63-71 ft-lbs (86-96 N·m). Technicians seeing this concern should repair the vehicle using the following…
• 11000351May 24, 2024Transmission and drivetrain. Some customers may complain about a bark, hoot, crunch, chirp, honk noise during 1-2 shift while accelerating from a complete stop. This shift noise may be caused by improper hydraulic pressure control of the automatic transmission. To eliminate this concern, the control software of the TCM has been modified.
• 11000969May 22, 2024Forward collision avoidance, Brakes, Visibility (wipers, defrost, mirrors)…. SSPD6 - SPECIAL SERVICE PROGRAM - VEHICLE CONTROL MODULE (VCM) PROGRAMMING - 2024 CX-90 SSPD6 - 2024 CX-90 - Vehicle Control Module (VCM) Reprogramming: This campaign will resolve three different concerns. Unintentional warning or braking when backing up. When backing up the vehicle in a parking lot or similar area, the View Monitor Camera (VMC) may detect certain physical obstacles lower to the ground such as, the…
• 11000968May 22, 2024Visibility (wipers, defrost, mirrors), Back-over prevention (rear camera)…. SSPD6 - SPECIAL SERVICE PROGRAM - VEHICLE CONTROL MODULE (VCM) PROGRAMMING - 2024 CX-90 SSPD6 - 2024 CX-90 - Vehicle Control Module (VCM) Reprogramming: This campaign will resolve three different concerns. Unintentional warning or braking when backing up. When backing up the vehicle in a parking lot or similar area, the View Monitor Camera (VMC) may detect certain physical obstacles lower to the ground such as, the…
• 11000967May 22, 2024Brakes, Vehicle speed control, Back-over prevention (rear camera), Forward…. SSPD6 - SPECIAL SERVICE PROGRAM - VEHICLE CONTROL MODULE (VCM) PROGRAMMING - 2024 CX-90 SSPD6 - 2024 CX-90 - Vehicle Control Module (VCM) Reprogramming: This campaign will resolve three different concerns. Unintentional warning or braking when backing up. When backing up the vehicle in a parking lot or similar area, the View Monitor Camera (VMC) may detect certain physical obstacles lower to the ground such as, the…
• 11000785May 22, 2024Electrical 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. NOTE: A Warranty Code is required for warranty claim submission
• 11000782May 22, 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.
• 11000675May 21, 2024Body and structure, Electrical system. Some customers may experience a warning message for the approaching vehicle audible system (AVAS) right after the ignition is turned on (POWER ON) while a loud noise, such as a horn, occurs close to the vehicle. Upon inspection, DTC B1A03:2B [ISB_AMP] (AVAS device circuit malfunction) is stored in memory.
• 11000672May 21, 2024Transmission and drivetrain. Some customers may feel a slight surge when driving at around 60 mph (100 km/h) in EV mode and decelerating with the accelerator pedal not fully released. If the accelerator pedal is fully released, the concern does not occur. This may be caused by improper torque control occurring for some shift down occasions. To eliminate this concern, the control software of the TCM has been modified.
• 11000966May 20, 2024Back-over prevention (rear camera), Forward collision avoidance, Vehicle speed…. SSPD6 - SPECIAL SERVICE PROGRAM - VEHICLE CONTROL MODULE (VCM) PROGRAMMING - 2024 CX-90 SSPD6 - 2024 CX-90 - Vehicle Control Module (VCM) Reprogramming: This campaign will resolve three different concerns. Unintentional warning or braking when backing up. When backing up the vehicle in a parking lot or similar area, the View Monitor Camera (VMC) may detect certain physical obstacles lower to the ground such as, the…
• 11000678May 14, 2024Transmission and drivetrain. When replacing the valve body for the CX-70 or CX-90 Inline 6, please note that the pipes are not included in the valve body assembly. They are only provided with the transmission assembly.
• 11000685May 10, 2024Engine. The CX-90 and CX-70 PHEV are equipped with two electric water pumps that look similar but have different part numbers. CAUTION: If the wrong water pump is ordered or they are reversed, DTC U019F could be set.
• 11000677May 10, 2024Engine. The CX-90 and CX-70 PHEV is equipped with two electric water pumps that look similar but have different part numbers and functionalities. CAUTION: If the wrong water pump is ordered or they are installed reversed, DTC U019F could be set.
• 11000680May 9, 2024Body and structure. Accessories has recently completed revising the CX-90 full display mirror instructions to include the CX-70 and revised the part number from KMV6V7210 to KMV6V7210A for the dealer kits to include the new instructions. Kit contents are the same.
• 10254189Apr 26, 2024Other or unknown. 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.
• 10254097Apr 25, 2024Engine cooling. On some vehicles, an engine oil leak from the rear of the engine at the turbocharger drain back tube could be be confused as an oil leak from behind the bell housing. The bolt holes for the drain back tube to the block are drilled through to the inside of the engine and thread sealer was not properly applied to the bolts threads, causing oil to leak past the threads. NOTE: The WSM was updated to show these bolts…
• 10254089Apr 25, 2024Electrical system. Some customers may experience a "BATTERY SAVING MODE. DRIVE VEHICLE TO CHARGE BATTERY" message (for 12V battery) that frequently appears in the instrument cluster with a warning sound. This concern may also occur after charging the 12V battery using a battery charger without disconnecting the negative terminal.
• 10254094Apr 23, 2024Forward collision avoidance, Electrical system, Lane departure, Transmission…. 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.
• 10254093Apr 23, 2024Engine cooling, Equipment, Electrical system. 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.
• 10254184Apr 17, 2024Latches, locks and linkages, Electrical system. Some customers may experience that the liftgate or the trunk lid will not unlock even when the vehicle is parked and the ignition is off. If the engine is running (POWER ON) or the ignition is turned to on (READY ON), it will unlock. To eliminate this concern, the control software of the DSC HU/CM (or the electronically controlled brake unit) has been modified.
• 10254083Apr 12, 2024Suspension. TSB 02-002/24 Parts Change: CX-90 ABNORMAL NOISE FROM VEHICLE FRONT WHEN TRAVELING OVER A BUMP WHILE TURNING IN LOW-SPEED Please be aware that Mazda has changed from ordering the individual parts needed for this Technical Service Bulletin repair to ordering a single kit part number. The individual parts are no longer provided by the supplier as single items and cannot be ordered separately. The new kit includes all…
• 10254190Apr 11, 2024Latches, locks and linkages, Exterior lighting, 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 Climate Control
• 10254191Apr 10, 2024Wheels. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains or discoloration.
• 10254087Apr 8, 2024Interior lighting. Some customers may complain about a rattle or vibration noise coming from front map light surroundings when driving on a rough road. This may be caused by the bracket for the map light. Due to heat or vibrations, the fastener fixing the front map light to the bracket may deform, making the joint loose. In such case, when the vehicle bounces, the bracket may oscillate and produce a rattling noise. To eliminate that…
• 10254085Apr 3, 2024Transmission and drivetrain. 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.
• 10254084Apr 3, 2024Suspension. Some vehicles may exhibit a creaking or squeaking noise from the lower control arm at the front suspension when traveling over a bump while turning at low-speed. A stick-slip phenomenon may occur between the stopper rubber (2) and the bracket (3) in the front lower arm (rear) (1).
• 10254185Apr 2, 2024Forward collision avoidance, Brakes, 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.
• 10252374Mar 22, 2024Visibility (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.
• 10252370Mar 22, 2024Electrical system. 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…

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