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Service bulletins for the 2020 Mazda CX-9

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.

327 on file from NHTSA, as of 2026-10-19.

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By component

By trouble code

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Bulletins, newest first
SA-004-20b2020-08-05. Service bulletin. EQUIPMENT:MECHANICAL. 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.
MT-001-202020-08-04. Service bulletin. EQUIPMENT; 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.
09-006-20-3673a2020-08-04. Service bulletin. EQUIPMENT. When encountering a vehicle with paint damage, refer to the "Mazda Paint Warranty Guide" to determine cause, prevention, remedy, and warranty coverage (if applicable).
06-003-20-37182020-08-04. Service bulletin. ELECTRICAL SYSTEM; STEERING. 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.
SA-053-202020-07-03. Service bulletin. POWER TRAIN. 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 to re-install the original plug from the old transmission.
SA-026-20a2020-07-03. Service bulletin. EQUIPMENT:ELECTRICAL. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
SA-004-20a2020-06-02. Service bulletin. EQUIPMENT. 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.
SA-049-202020-05-05. Service bulletin. ENGINE AND 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. Contact Hotline for latest repair information.
SA-047-202020-05-05. Service bulletin. POWER TRAIN. 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.
SA-040-20a2020-05-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. 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 are inoperative.The key transmitter control functions (i.e. locking/unlocking door, etc.) are operational when pressing the transmitter switches, even while the key power saving function is turned ON.
SA-041-202020-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Some customers may complain about incorrect MAZDA CONNECT clock time. This may be caused by an incorrect clock GPS Sync setting.
SA-039-202020-04-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; TRAILER HITCHES; ELECTRICAL SYSTEM. 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. Refer to the deactivation process titled “Handsfree Liftgate Sensor Deactivation/Removal Guide and Procedure” in the Trailer Hitch Installation Instruction (attached). NOTE: THE CUSTOMER MUST BE NOTIFIED THAT THEY WILL NO LONGER HAVE THE HANDSFREE SENSOR SHOULD THEY REQUEST THAT THE TRAILER HITCH BE INSTALLED.
SA-037-202020-04-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. 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 the Lane Departure Warning System (LDWS) and/or High Beam Control system (HBC). • In other cases this DTC might be found without a related customer concern. NOTE: Instrument Cluster Multi-Information Display Warning Messages vary depending on vehicle year/model. See the Owner's Manual for details.
SA-036-202020-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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. CAUTION: Be aware that when cleaning the brand emblem, never use cleaning products that are highly acidic/alkaline detergent, organic solvents or those with aggressive chemical products, otherwise, the brand emblem may become cracked and/or deformed (as shown in the example below). Always refer customers to the owner’s manual for proper cleaning using cold or lukewarm water and a mild, neutral detergent.
DRW282020-04-03. Service bulletin. VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY. DRW28 - CHROME WINDOW MOLDING CONCERN FROM STRONG WIND DAMAGE - 2020 CX-5 AND CX-9
04-004-20-3679b2020-04-03. Service bulletin. SERVICE BRAKES, HYDRAULIC; EQUIPMENT ADAPTIVE/MOBILITY; 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.
04-004-20-3679a2020-04-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES, HYDRAULIC. 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. When the vehicle moves or the brakes are applied the next time, the front brake pads move to the other side, which causes a click noise.
00-001-20-36892020-04-03. Service bulletin. SERVICE BRAKES, HYDRAULIC; POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND 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.
04-004-20-36792020-02-29. Service bulletin. SERVICE BRAKES, HYDRAULIC. 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. When the vehicle moves or the brakes are applied the next time, the front brake pads move to the other side, which causes a click noise.
04-003-20-36682020-02-29. Service bulletin. SERVICE BRAKES, HYDRAULIC. 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 plate surface honing process has been changed to reduce metal particle formation.
02-004-20-36852020-02-29. Service bulletin. WHEELS. 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.
SA-032-202020-02-29. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. 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, it is available as a dealer installed accessory. SiriusXM Traffic Plus and Travel Link are available on the 2019-2020 Mazda3 and 2020 CX-30 Preferred Package and above, as a paid subscription. Traffic Plus feature requires in-vehicle navigation SD card. SiriusXM Satellite Radio trial subscription is free of charge for 3 months.
SA-030-202020-02-27. Service bulletin. POWER TRAIN. 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.
SA-026-202020-02-27. Service bulletin. EQUIPMENT. 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.
SA-011-20a2020-02-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Some customers may complain about a MAZDA CONNECT system reboot or blank screen. Use the troubleshooting chart below to repair the vehicle.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.