Service bulletins for the 2021 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.
428 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with component: Equipment and accessories are shown. Show all
| 09-009/22 | 2022-04-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Some customer may experience the wireless charger does not start charging or stops charging immediately although the mobile device is in the chargeable area. This is caused by the logic for detecting foreign matter being too sensitive. |
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| 07-001/22 | 2022-04-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS. Some vehicles may exhibit an unusual noise in the front A/C unit when the recirculate switch is operated. This is caused by a damaged gear in the air intake actuator. Dust and sand adhered to the grease at the air intake link may disturb the movement of the air intake actuator, resulting in the damaged gear. To eliminate this concern, grease application to the air intake link mechanism to the link pin has been reduced. |
| 04-001/22 | 2022-04-05. 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: 2016-2022 CX-9 2018-2022 CX-5 (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. Cause: 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. Mass-Production Change: None 2016-2018 CX-9 (Squeak noise): During light braking. Cause: Occurs when the front brake pads have been worn to certain levels. As the pads wear, the chamfer goes away and the grease between the pad and the shim deteriorates. Mass-Production Change: As of Apr. 27, 2018, the chamfer shape of the brake pad was improved to increase durability. |
| 01-003/22 | 2022-04-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; 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. |
| SA-007-22a | 2022-03-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Some vehicles equipped with SiriusXM Travel Link and a Navigation SD Card added by dealer/customer may experience a SiriusXM Travel Link error when selecting Parking Information. |
| SA-007-22 | 2022-03-04. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. Some customers may experience a SiriusXM Travel Link error when selecting Parking Information. |
| SA-004-22 | 2022-03-04. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. |
| SA-025-21a | 2022-01-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. MDARS vs IDS Service Information: The 2021 CX-5 and CX-9 will be the first 6.5 generation vehicles to be equipped with Connected Vehicle Services and some functions will be limited at launch. This service information provides a timeline of the system limitations. |
| SA-013-21h | 2022-01-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT; ELECTRICAL SYSTEM. Connected Vehicle Symptom Troubleshooting: Some customers may complain about any of the following: - Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. - Remote function(s) inoperative. o Engine Start / Stop o Door Lock / Unlock o Lights ON / OFF MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Confirm the customer's phone and vehicle have good to strong reception during the concern as shown in the table below. - If the reception is weak, move the vehicle to a location where the reception is good to strong as shown in the table, then try to get the Authorization Code and/or operate the remote functions before proceeding to the Repair Procedure if there is still an issue. - If the reception is good to strong, proceed to the Repair Procedure. |
| 09-012-21-3801b | 2022-01-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Door Lock Will Not Work Using Remote Transmitter and Engine Will Not Start: Some customers may experience all of following symptoms: 1. The door lock/unlock operation will not work using the remote transmitter button. 2. The door lock/unlock operation will not work using the door lock/release touch sensor. 3. The engine will not start using the ignition switch. 4. The transmitter operates by itself. 5. The key battery drains faster than usual. Symptoms 1-3: This may be caused when excess load is applied to the remote transmitter, deforming the electrical terminals and creating poor contact with the battery. To eliminate this concern, the structure in the remote transmitter has been modified to reduce the deformation of the electrical terminals. Symptom 4-5: This may be caused when excessive load is applied to the remote transmitter, creating a gap around the gasket where moisture enters and corrodes the circuit board which in turn drains the key battery faster than usual. To eliminate this concern, the thickness of the case wall on the gasket mounting surface has been increased and the bonding strength of the components has been improved to prevent deformation. Customers having this concern should have their vehicle repaired using the following repair procedure. |
| SA-054-21a | 2021-12-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Some customers may complain about any the following infotainment system concerns: Reboot, Slow reboot in morning, Display frozen, Display blank. NOTE: Rear view monitor operation is normal, No DTC stored |
| SA-054-21 | 2021-12-02. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Some customers may complain about any the following infotainment system concerns: Reboot, Slow reboot in morning, Display frozen, Display blank. NOTE: Rear view monitor operation is normal, No DTC stored |
| SA-052-21 | 2021-12-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of all PCM terminals used in SKYACTIV® vehicles and compare suspect terminal drag with a good know terminal.To measure the voltage/resistance avoiding any terminal damage. |
| 15-004-21-3835 | 2021-12-02. Service bulletin. FORWARD COLLISION AVOIDANCE; EQUIPMENT ADAPTIVE/MOBILITY. NOTE: This Service Information is only applicable for vehicles equipped with a Forward Sensing Camera (FSC), KDD1-67-XCX and GSH7-67-XCX*. If B61L-67-XCX* appears in the GEPC search, the VIN is applicable for this repair only if the part has been previously replaced with KDD1-67-XCX. Some vehicles may exhibit the master warning light (and other warning lights) illuminated while driving, with DTC B115E:76 stored in memory. |
| 01-012-21-3832a | 2021-12-02. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Some vehicles may have a “LOW ENGINE OIL LEVEL” warning message and a CHECK ENGINE light illuminated in the instrument cluster, along with DTC P250F:00 stored in memory. DTC P250F:00 - Engine oil level signal: engine oil level low. Upon inspecting the engine oil level, the level is found to be low and there doesn’t appear to be any trace of oil leakage in the engine compartment. This concern usually occurs when the mileage reaches approximately 3,100 – 4,700 miles (5,000 - 7,500km) and may also occur again after replacing or topping off the engine oil. The root cause of this concern has not been identified yet, therefore a repair procedure will be announced at a later date. Since this issue has been reported after a valve stem seal modification, it is very likely that valve stem seal damage is causing oil to leak into the combustion chamber. |
| SA-012-21g | 2021-11-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MAZDA CONNECTED SERVICES - FREQUENTLY ASKED QUESTIONS (FAQ): Index: General Questions, Setup and Getting Started, Registration / Enrollment, WI-FI General Information, WI-FI How-To, WI-FI Trial Period, Interacting With The App, Service Issues, Troubleshooting, Reception Level Inspection, Dealer Processes, Conditions for Remote Engine Start Will Not Function, Conditions for Remote Engine Start Function Will turn engine OFF, Educational Videos, Resources |
| SA-013-21h | 2021-11-01. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT; ELECTRICAL SYSTEM. Some customers may complain about any of the following: Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF, MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Confirm the customer's phone and vehicle have good to strong reception during the concern as shown in the table below. If the reception is weak, move the vehicle to a location where the reception is good to strong as shown in the table, then try to get the Authorization Code and/or operate the remote functions before proceeding to the Repair Procedure if there is still an issue. If the reception is good to strong, proceed to the Repair Procedure. |
| 09-030-21-3838 | 2021-10-31. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL; EQUIPMENT ADAPTIVE/MOBILITY. Some vehicles may exhibit a rattle, clunk or pop noise from the front of the vehicle while driving. The noise may be caused by loose cowl panel bolts. |
| SA-019-21d | 2021-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MAZDA CONNECT SYMPTOM TROUBLESHOOTING [6TH GENERATION VEHICLES]. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns. |
| SA-019-21c | 2021-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MAZDA CONNECT SYMPTOM TROUBLESHOOTING [6TH GENERATION VEHICLES]. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns. |
| SA-027-21b | 2021-10-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. MAZDA CONNECT Symptom Troubleshooting (7th Generation Vehicles). Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure |
| SA-013-21g | 2021-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Some customers may complain about any of the following: Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF, MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Confirm the customer's phone and vehicle have good to strong reception during the concern as shown in the table below. If the reception is weak, move the vehicle to a location where the reception is good to strong as shown in the table, then try to get the Authorization Code and/or operate the remote functions before proceeding to the Repair Procedure if there is still an issue. If the reception is good to strong, proceed to the Repair Procedure. |
| SA-004-21c | 2021-10-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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 TCU activation is not performed, connected vehicle functions will not operate. This will have a negative impact on the customer because they will need to return to the dealer for repairs. |
| SSPC7a | 2021-10-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT:ELECTRICAL. SSPC7 - SPECIAL SERVICE PROGRAM -TELEMATICS COMMUNICATION UNIT BATTERY DRAIN CONCERN AND CONNECTED SERVICES NOT AVAILABLE: Repair Outline and Important Notes: Reprogram the telematics communications unit with an USB stick. You must use MDARS after USB programming to check for DTC and sending ODR data. New information has been added to SSPC7 repair documents. Discard all other documents and print these documents out. DRW41 repaired vehicles will not need SSPC7 completed. Unrepaired DRW41 vehicles have been moved to SSPC7. You must check DRW41 status prior to repair in Warranty Vehicle Inquiry. Open status, perform SSPC7. Closed status, return vehicle to stock or customer after confirming CV signal strength. Unsubmitted DRW41 claims with repair dates of August 2 or later must be submitted with SSPC7 claim information. Warranty Operations will be deleting DRW41 VINs in open status over the next few days. SSPC7 must be performed prior to delivery and is subject to the New Car Ready process |
| MT-002-21 | 2021-10-02. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85. E10: A blend of 10% ethanol and 90% gasoline, E85: A blend of 85% ethanol and 15% gasoline, All Mazda vehicles can run on gasoline containing up to 10% ethanol (E10) but only some 1999-2001 B3000 trucks can run on gasoline with more than 10% ethanol blended. E10 compatible vehicles: All Mazda vehicles. E85 compatible vehicles: 1999-2001 B3000 Mazda trucks with the 8th VIN digit is V. What if a customer puts E85 in there Mazda vehicle? Symptoms include: Rough Running, Lean Codes, Misfires and/or misfire codes, Lack of power, Poor fuel economy, Spark knock, Mechanical engine damage. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.