2020 Mazda CX-9 Technical Service Bulletins

327 technical service bulletins (TSBs) are on record for the 2020 Mazda CX-9. 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.

• 10183604Nov 10, 2020Engine cooling. Some customers may complain about high engine oil consumption. Before attempting any repairs, verify the complaint by using the guideline below to determine if an engine repair is necessary: Engine Oil Consumption Inspection Guideline 1. Record the vehicle mileage. 2. Engine at normal operating temperature, top off engine oil level to the full mark on the dipstick. 3. Ask the customer to return to the dealer after…
• 10182123Oct 28, 2020Equipment, Engine cooling. Currently, the instructions on MGSS recommend the use of Loctite 962T or equivalent when installing a SKYACTIV cylinder head, but it is no longer available. The following 3 adhesives are alternatives available as an equivalent to Loctite 962T: Loctite 272, Loctite 518 Threebond TB-1386H
• 10182122Oct 15, 2020Equipment, Electrical system. APPLE CARPLAY / ANDROID AUTO FREQUENTLY ASKED QUESTIONS (FAQ): NOTE: The following vehicles are not equipped with Apple CarPlay / Android Auto, but it can be activated using MDARS. See Activation instructions on MGSS - Infotainment - MAZDA CONNECT Updates - Apple Carplay / Android Auto MDARS Activation Instructions
• 10182126Oct 14, 2020Equipment, Engine cooling. CRACKED REAR DIFFERENTIAL: Be aware that some new AWD vehicles have been found with cracked rear differential cases, as shown below. NOTE: This may affect new vehicles just delivered to the dealer or new vehicles in dealer inventory.
• 10182111Oct 14, 2020Equipment. The 2020 CX9 Grand Touring and Signature trims come standard with a liftgate handsfree foot-motion detection unit located on the inner surface of the rear bumper. This location is also where the accessory trailer hitch (P/N 0000-8E-N31/0000-8EN31A) is designed to be installed. Due to this location conflict, the foot-motion detection unit must be removed and deactivated in the MAZDA CONNECT system.
• 10182121Oct 12, 2020Equipment. ACCESSORY INSTRUCTIONS LOCATION: Accessory instructions can be found in the Accessory eCatalog. https://ecatalog.mazdausa.com
• 10182100Oct 2, 2020Brakes, Equipment, Forward collision avoidance, Electrical system, Steering. Some vehicles may exhibit that the SBS/SCBS warning light (amber) turns ON right after the engine is started with DTC U0420:68 [FSC] (Error signal received from electric power steering (EPS) control module) stored in memory. For Mazda6 and CX-5, the following error messages may appear in the instrument cluster.  Front camera sensor system malfunction  Forward Smart City Brake Support Malfunction …
• 10180692Sep 23, 2020Electrical system. SSPC2 - 2020 CX-5 AND 2020 CX-9 POWER LIFTGATE (PLG) CONTROL UNIT CONCERN. Concern Outline: On certain subject vehicles, the PLG Control Unit may not switch to the power saving mode even after pressing the push button start and setting the ignition to the off position, due to improper control logic of the PLG Control Unit. In this condition, if the vehicle is left unused for a certain amount of time, the battery…
• 10180599Sep 8, 2020Steering. Some customers may complain of a steering wheel vibration (in a rotational direction), when they are not holding onto the steering wheel. The vibration stops when holding onto the steering wheel or when driving. This may be caused by improper control logic of the EPS control module. To eliminate this concern, the EPS control logic has been modified.
• 10180670Sep 4, 2020Brakes, Electrical system, Steering, Visibility (wipers, defrost, mirrors)…. Some vehicles may exhibit that the SBS/SCBS warning light (amber) turns ON right after the engine is started with DTC U0420:68 [FSC] stored in memory.  DTC U0420:68 [Forward sensing camera (FSC)]: Error signal received from electric power steering (EPS) control module. For Mazda6 and CX-5, the following error messages may appear in the instrument cluster.
• 10180666Sep 3, 2020Body and structure, Equipment. Some vehicles may exhibit poor fitting rear door weatherstrips at the lower/front location. The weatherstrips may be deformed by frequent contact with passengers entering and exiting the vehicle, causing the weatherstrip joint to become enlarged. The enlarged weatherstrip joint does not grip the door panel tight enough when it is refitted.
• 10180546Sep 2, 2020Body and structure. Mazda Accessories has re-released the Front and Rear Bumper Trim kits for the CX-9 (see the table below for application and required components). NOTE: The Front and Rear Bumper Trim Kits are only to be installed on Sport and Touring Models from 2020MY and forward. The Rear Bumper Trim contained within the kit is not compatible with the Handsfree Liftgate Sensor that comes standard on the Carbon Edition (new for…
• 10179080Aug 25, 2020Steering. Some customers may complain of a steering wheel vibration (in a rotational direction), when they are not holding onto the steering wheel. The vibration stops when holding onto the steering wheel or when driving. This may be caused by improper control logic of the EPS control module. To eliminate this concern, the EPS control logic has been modified.
• 10179172Aug 20, 2020Engine cooling. A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly. NOTE: Cylinder head replacement requires MASH authorization.
• 10179315Aug 18, 2020Electrical system. When performing vehicle services such as control unit software update, control unit registration/activation, CMU log data retrieval, etc., always use the GR8 battery charger SST to maintain battery voltage.
• 10179313Aug 13, 2020Forward collision avoidance, Brakes, Visibility (wipers, defrost, mirrors)…. Some customers may complain about the following message displayed in the Multi-Information Display: In the following cases, the MRCC with Stop & Go function system is canceled when the vehicle is traveling at 19 mph (30 km/h) or less:  The Forward Sensing Camera (FSC) cannot detect target objects due to one of the following:  The windshield is dirty  The FSC lens is foggy  There is low…
• 10179089Aug 12, 2020Body and structure, Electrical system. 2020 CX-5 AND 2020 CX-9 POWER LIFTGATE (PLG) CONTROL UNIT CONCERN: On certain subject vehicles, the PLG Control Unit may not switch to the power saving mode even after pressing the push button start and setting the ignition to the off position, due to improper control logic of the PLG Control Unit. In this condition, if the vehicle is left unused for a certain amount of time, the battery may discharge and run out.
• 10179162Aug 11, 2020Electrical system. ENGINE NO START DUE TO LOW BATTERY VOLTAGE. This Service Alert has been replaced by SSPC2 - 2020 CX-5 AND 2020 CX-9 POWER LIFTGATE (PLG) CONTROL UNIT CONCERN
• 10179088Aug 10, 2020Body and structure, Equipment. 2020 CX-5 AND 2020 CX-9 POWER LIFTGATE (PLG) CONTROL UNIT CONCERN: On certain subject vehicles, the PLG Control Unit may not switch to the power saving mode even after pressing the push button start and setting the ignition to the off position, due to improper control logic of the PLG Control Unit. In this condition, if the vehicle is left unused for a certain amount of time, the battery may discharge and run out.
• 10179087Aug 10, 2020Body and structure, Electrical system. 2020 CX-5 AND 2020 CX-9 POWER LIFTGATE (PLG) CONTROL UNIT CONCERN: On certain subject vehicles, the PLG Control Unit may not switch to the power saving mode even after pressing the push button start and setting the ignition to the off position, due to improper control logic of the PLG Control Unit. In this condition, if the vehicle is left unused for a certain amount of time, the battery may discharge and run out.
• 10179154Aug 7, 2020Electrical system. Some customers may complain about an inoperative power liftgate (PLG) and the any of the following DTC's stored in memory:  U3003:16 (Power liftgate (PLG) control module power supply voltage low input)  U3003:17 (Power liftgate (PLG) control module power supply voltage high input). This may be caused by low or high vehicle battery voltage.
• 10179228Aug 3, 2020Wheels, Tires. New CARB regulation regarding mandatory checking and documenting of tire pressure whenever a vehicle is in for service work. This applies to all service shops (including Mazda dealerships) in California effective September 1, 2010.
• 10177931Jul 31, 2020Electrical system, Engine cooling. Some customers may experience an engine no start due to low battery voltage. Mazda is aware of the issue and is working on a solution. NOTE: Battery parasitic draw is intermittent. When the condition is present, battery parasitic draw exceeds 65 mA (0.065 A) 40 minutes after key OFF.
• 10177974Jul 27, 2020Equipment. DRW29 - 2020 CX-3, CX-30, CX-5, CX-9, MAZDA6 AND MAZDA3 - SECOND PDI OF ALLOCATED FLEET VEHICLES: Concern Outline: There are 597 vehicles contained in this DRW, and all had a paid Pre-Delivery Inspection performed at the port and were to be used as fleet vehicles.
• 10177845Jul 21, 2020Steering, Electrical system. Some customers may complain of a steering wheel vibration (in a rotational direction), when they are not holding onto the steering wheel. The vibration stops when holding onto the steering wheel or when driving. This may be caused by improper control logic of the EPS control module. To eliminate this concern, the EPS control logic has been modified.
• 10177847Jul 20, 2020Equipment. When encountering a vehicle with paint damage, refer to the "Mazda Paint Warranty Guide" to determine cause, prevention, remedy, and warranty coverage (if applicable).
• 10177853Jul 15, 2020Equipment, Electrical system. 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 Workshop Manual diagnosis. Aftermarket devices may be the cause of the electrical concern. Ask the customer if any aftermarket devices have been installed. Below are a couple of examples of unusual electrical concerns caused by aftermarket devices.
• 10177920Jul 6, 2020Equipment. In order to ensure key code security, MNAO has restricted key code access for the new auxiliary key. This Service Alert provides information on how to obtain the 10-digit key code needed for cutting a new auxiliary key blank if all auxiliary keys are lost.
• 10177005Jun 11, 2020Equipment. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
• 10177012Jun 10, 2020Transmission and drivetrain. When replacing manual or automatic transmission, make sure to remove the plug from the old transmission (as shown below) and then re-install it to the new transmission with a new washer. The new transmissions (including remanufactured A/T) have a shipping plug, as shown in the figures (M/T: black, rubber made; A/T: pink and black, with breather). This plug is for shipping use only and needs to be removed in order…
• 10176042May 11, 2020Equipment. In order to ensure key code security, MNAO has restricted key code access for the new auxiliary key. This Service Alert provides information on how to obtain the 10-digit key code needed for cutting a new auxiliary key blank if all auxiliary keys are lost.
• 10174692Apr 30, 2020Engine cooling. Some customers may experience an engine no start due to low battery voltage. Mazda is aware of the issue and is working on a solution. NOTE: Battery parasitic draw is intermittent. When the condition is present, battery parasitic draw exceeds 65 mA (0.065 A) 40 minutes after key OFF. Contact Hotline for latest repair information.
• 10174690Apr 28, 2020Transmission and drivetrain. Be aware that some new AWD vehicles have been found with cracked rear differential cases, as shown below. NOTE: This may affect new vehicles just delivered to the dealer or new vehicles in dealer inventory.
• 10174677Apr 2, 2020Electrical system, Equipment, Engine cooling. Key Transmitter Power Saving Function: When the key transmitter Power Saving Function is turned ON, transmitter battery power consumption is restricted, thereby extending the transmitter battery life. IMPORTANT:  The engine will not start unless the key transmitter is held over the Start Stop button.  Outside door handle lock/unlock touch sensor is inoperative.  Key transmitter indicator lights…
• 10173099Mar 19, 2020Brakes, Equipment. Some vehicles may exhibit a click or squeak noise from the front brakes under the following conditions: Click Noise: 1. When first moving forward or reverse from a stop OR 2. When first applying the brakes while moving forward at slow speeds. Squeak Noise: During light braking.
• 10173102Mar 18, 2020Equipment, Visibility (wipers, defrost, mirrors). Drw28 - chrome window molding concern from strong wind damage - 2020 cx-5 and cx-9
• 10173097Mar 12, 2020Transmission and drivetrain, Equipment, Brakes, Engine cooling. 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.
• 10173253Mar 11, 2020Equipment, Electrical system. Some customers may complain about incorrect MAZDA CONNECT clock time. This may be caused by an incorrect clock GPS Sync setting.
• 10173251Mar 9, 2020Other or unknown, Electrical system, Equipment. The 2020 CX9 Grand Touring and Signature trims come standard with a liftgate handsfree sensor located on the inner surface of the rear bumper. This location is also where the accessory trailer hitch (P/N 0000-8E-N31/0000-8EN31A) is designed to be installed. Due to this location conflict, the handsfree sensor must be uninstalled and deactivated in the MAZDA CONNECT system.
• 10173098Mar 6, 2020Brakes, Equipment. Some vehicles may exhibit a click noise from the front brakes under one of the following conditions:  When first moving the vehicle forward or reverse from a stop.  When first applying the brakes while the vehicle is moving forward at slow speeds. Due to deteriorated grease between the brake pads and the shim, the front brake pads move upward/downward along with the brake rotors during brake application.
• 10173228Mar 4, 2020Equipment. The owner’s manual contains procedures and precautions for the maintenance and cleaning of plastic parts, like the brand emblem. However, it is still important to remind customers about these precautions. Customers should never use inadequate, harsh or aggressive cleaning products on plastic parts.
• 10173249Mar 3, 2020Forward collision avoidance, Equipment. Some vehicles may have one of the following DTCs stored in memory:  C1001:92 - Forward sensing camera (FSC) poor field of view  B14F0:92 - General temporary failure in forward sensing camera (FSC) DTC C1001:92 or B14F0:92 set as a past record for low visibility of the Forward Sensing Camera (FSC). It does not mean there is an actual FSC defect.  In some cases the customer may have a concern with…
• 10171833Feb 27, 2020Equipment. SiriusXM Traffic Plus and Travel Link are displayed with Mazda in-vehicle factory navigation systems. Both of these services provide information in the U.S. & Canada. NOTE: SiriusXM Traffic Plus and Travel Link subscription is free of charge for 3 years only if equipped with factory installed navigation system. NOTE: 2019-2020 Mazda3 and 2020 CX-30 are not equipped with factory installed navigation system,however…
• 10171843Feb 26, 2020Wheels. 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.
• 10171792Feb 26, 2020Transmission and drivetrain. Service part Automatic Transaxles (ATX) manufactured on or after July, 2018 are shipped with a blank TCM that requires configuration. NOTE: The following Caution is included with every ATX that requires configuration.
• 10171845Feb 20, 2020Brakes. Some vehicles may exhibit a click noise from the front brakes under one of the following conditions: When first moving the vehicle forward or reverse from a stop. When first applying the brakes while the vehicle is moving forward at slow speeds. Due to deteriorated grease between the brake pads and the shim, the front brake pads move upward/downward along with the brake rotors during brake application.
• 10171844Feb 20, 2020Brakes. Some vehicles may exhibit grooves (1) in rear brake disc plate(s), as shown below. This concern is mostly found on new or low mileage vehicles, when the brakes are new. The grooves may be caused through abrasion from the accumulation of metal particles from the rear brake disc plates. The metal particles get caught between the brake pads and disc plates causing groove damage. To eliminate this concern, the disc…
• 10171780Feb 18, 2020Electrical system, Equipment. Some customers may complain about a MAZDA CONNECT system reboot or blank screen. Use the troubleshooting chart below to repair the vehicle.
• 10171787Feb 11, 2020Equipment. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns. Audio System, Bluetooth®, Center Dislay, DTC, i-ACTIVESENSE, Maintenance Monitor, Navigation, Noise, Reboot / Frozen Screen / Slow Response, USB / Aux Voice Command, How to Check Navi SD Card VIN Lock.
• 10170941Jan 29, 2020Brakes. 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.

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