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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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Bulletins, newest first
MT-005-202020-12-03. Service bulletin. ENGINE AND ENGINE 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 1200 miles to recheck the engine oil level. 4. After 1200 miles, engine at normal operating temperature, check the engine oil level on the dipstick. 5. Is the engine oil level above the low mark on the dipstick? • Yes - No repair is necessary. • No - Proceed to MGSS online or Workshop Manual (section 01-03 NO. 16 HIGH OIL CONSUMPTION/LEAKAGE).
09-036-20-37562020-12-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Some vehicles may exhibit a Connectivity Master Unit (CMU), a BLUETOOTH® hands-free unit or text messaging related concerns. To improve the handling of BLUETOOTH® hands-free and/or text messaging customer concerns, Mazda created a special service and parts exchange program as of February 2010.
SA-047-20a2020-11-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 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.
SA-071-202020-11-04. Service bulletin. EQUIPMENT; ENGINE AND 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
SA-070-202020-11-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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
SA-069-202020-11-04. Service bulletin. EQUIPMENT. ACCESSORY INSTRUCTIONS LOCATION: Accessory instructions can be found in the Accessory eCatalog. https://ecatalog.mazdausa.com
SA-039-20a2020-11-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 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.
15-003-20-3737a2020-11-03. Service bulletin. STEERING; FORWARD COLLISION AVOIDANCE; SERVICE BRAKES; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. 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 • Driver attention alert system malfunction. This may be caused by the battery voltage falling and the EPS control module failing the initial learning for the steering center position while cranking. The FSC detects the error notified by the EPS control module. To correct this concern, the control software of the EPS control module has been modified while the repair procedure modifies the FSC for earlier repairs in the market.
SSPC2c2020-10-05. Service bulletin. ELECTRICAL 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 may discharge and run out.
RF-20-012020-10-05. Service bulletin. STRUCTURE:BODY:BUMPERS. 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 2021), GT, or the Signature Models.
15-003-20-37372020-10-03. Service bulletin. SERVICE BRAKES, HYDRAULIC; VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; STEERING:ELECTRIC POWER ASSIST SYSTEM. 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. • Front camera sensor system malfunction • Forward Smart City Brake Support Malfunction • Driver attention alert system malfunction. This may be caused by the battery voltage falling and the EPS control module failing the initial learning for the steering center position while cranking. The FSC detects the error notified by the EPS control module. To correct this concern, the control software of the EPS control module has been modified while the repair procedure modifies the FSC for earlier repairs in the market.
09-029-20-37322020-10-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:BODY:DOOR; 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.
06-003-20-3718b2020-10-02. Service bulletin. 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-063-202020-09-03. Service bulletin. ELECTRICAL 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.
SA-062-202020-09-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; PARKING BRAKE; VISIBILITY; FORWARD COLLISION AVOIDANCE. 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 visibility due to rain, fog or snow • It is at night and there is not enough light • There is direct or reflected sunlight on the FSC • There is problem with the FSC • There is a problem with the AUTOHOLD control function. • There is a problem with the electric parking brake (EPB).
MT-002-202020-09-02. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; WHEELS. 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.
SA-058-20b2020-09-01. Service bulletin. ENGINE AND ENGINE 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.
SA-049-20b2020-09-01. Service bulletin. ELECTRICAL 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
MT-003-202020-09-01. Service bulletin. ELECTRICAL 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.
SSPC2b2020-09-01. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM:IGNITION. 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.
SSPC2a2020-09-01. Service bulletin. EQUIPMENT:ELECTRICAL; STRUCTURE:BODY:HATCHBACK/LIFTGATE. 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.
SSPC2a2020-09-01. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:HATCHBACK/LIFTGATE. 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.
06-003-20-37182020-09-01. Service bulletin. 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.
DRW292020-08-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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. These vehicles have since been reallocated to dealerships and due to significant idle time prior to arriving at dealers, the vehicle should have a new Pre-Delivery Inspection performed in order to support a perfect delivery to the customer.
SA-049-202020-08-05. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. 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.

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