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Service bulletins for the 2017 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.

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

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Bulletins, newest first
SA-043-182018-10-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. The instructions in the current inventory of the Rear Seat Entertainment (RSE) System are incorrect in some of the steps and have been updated. The P/N of the updated instructions is 0000-8F-N10A. If the accessory instructions with the RSE system does not have an "A" at the end, disregard those instructions and download/print the ones attached to this SA.
SA-042-182018-10-09. Service bulletin. PARKING BRAKE; ELECTRICAL SYSTEM. DO NOT follow the instructions on MGSS for performing the ELECTRIC PARKING BRAKE (EPB) FORCED RELEASE PROCEDURE until these instructions are read, otherwise, damage to the EPB system may occur The instructions on MGSS are incorrect in one step, but will be corrected soon. NOTE: Performing the electric parking brake forced release procedure is necessary if the electric parking brake cannot be released by operating the electric parking brake switch or performing a recovery operation (*) due to a malfunction in the system or a discharged battery.
01-017-18-35182018-10-09. Service bulletin. ENGINE. Some customers may experience a check engine light on and DTC P0401:00 stored in memory without any drivability issues. P0401:00 - [PCM] EGR flow insufficient detected. This concern may be caused by the detection logic for the DTC is too sensitive. To eliminate this concern, the control logic of the PCM has been modified.
01-016-18-35222018-10-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. On some vehicles, a sulfur smell or 'rotten egg' odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods of idling and full throttle acceleration. Sulfur smell is not an indication of an engine concern and will not cause reduced driveability or durability of the engine or any of its emission components. The sulfur smell or 'rotten egg' odor is caused by high amounts of sulfur in the gasoline being used in the vehicle. Sulfur is normally eliminated during the refining process, but the EPA regulation of sulfur in gasoline differs from state to state. Vehicles using fuel containing high amounts of sulfur will most likely emit sulfur smell from the exhaust system. When high sulfur fuel is burned, there is a chemical reaction in the catalytic converter causing the sulfur to oxidize. As the vehicle is driven, the oxidizing reaction odor in the converter will decrease with mileage and age.
MT-008-182018-10-09. Service bulletin. ENGINE; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Some customers may complain about: Intermittent engine no start, Instrument cluster red security indicator light ON, Engine Start/Start Button Amber indicator, light flashing, Battery discharge, Electrical relay buzzing noise.This may be caused by: A key in a purse near a cell phone. The cell phone radio waves may interrupt the immobilizer system. An aftermarket cell phone charger. The charger may produce electrical noise that interrupts the immobilizer system. An aftermarket GPS tracker. Some aftermarket devices that are wired to the vehicles?s wiring harness may create unusual electrical symptoms.
MT-007-182018-10-09. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about the following: Engine no start. A blurry rear view monitor display. This may be caused by an aftermarket accessory device. Some aftermarket electrical devices (e.g., an accessory cell phone charger, GPS tracker...) may create excessive electrical noise. The noise may interrupt some of the vehicle electrical systems. Below are a few examples of an aftermarket cell phone charger and GPS tracker that are interrupting the vehicle electrical systems.
MT-004-182018-10-09. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. 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.
SA-037-182018-09-10. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Service part Automatic Transaxles (ATX) manufactured on or after July, 2018 are shipped with a blank TCM that requires configuration.
09-034-18-34302018-09-10. Service bulletin. VEHICLE SPEED CONTROL. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer's responsibility to comply with Federal, State, and local laws concerning odometer and related documentation requirements when providing a repair or replacement. Mazda vehicles are manufactured with tamper-proof speedometers. When a speedometer is replaced, the new speedometer will read zero (0) miles. This procedure is extremely important to accurately represent actual vehicle mileage. Prior to speedometer removal, complete the information required on the "Speedometer Replacement Label". Labels can only be ordered through Mazda eStore. In an effort to achieve a higher level of Customer Experience and retain the value of Mazda's vehicles, MNAO Warranty Operations is allowing all Mazda dealers to utilize a third party, SPECMO Enterprises, Inc., for Instrument Panel Cluster (IPC) odometer setting service. With the use of SPECMO's services, it is possible that the odometer will be set between 10 to 31 miles over the odometer mileage at the time of replacement for both warranty and customer pay repairs. Please make sure that the customer is aware that there may be a slight variance to the odometer, in which case the customer may have to accept the slightly higher mileage. Since odometer setting service is not part of the warranty repair, it is not warrantable nor required, but optional. However, Mazda Warranty policy provides after-warranty assistance (AWA) or DSA that can be utilized to cover this service expense.
01-001-18-3419a2018-09-10. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; PARKING BRAKE:DRIVELINE:HYDRAULIC:ACTUATOR. After parking the vehicle at temperatures below the freezing, some customers may experience a lack of power with the check engine light on and DTC P0638:00 and/or P2112:00 stored in memory. - P0638:00: Throttle valve actuator control range/performance problem (one drive cycle DTC) - P2112:00: Throttle valve actuator motor current range/performance problem (one drive cycle DTC) This concern may be caused by condensed water in the intake manifold entering the throttle valve. After parking at temperatures below freezing, the throttle valve may be frozen at the stand-by position, resulting in the symptom. To prevent this concern, the control logic of the PCM has been modified to avoid frozen the throttle valve (by moving the valve at a certain time after the ignition has been turned off). NOTE: With this modification, the main relay may stay on up to 90 minutes after the ignition switch is turned off. "BATTERY INSPECTION" in the Workshop Manual will be modified to properly check the battery parasitic draw after this modification.
MT-008-182018-08-27. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE. ENGINE NO START (KEY NOT DETECTED): Some customers may complain about the following: Intermittent engine no start, Instrument cluster red security indicator light ON, Engine Start/Start Button Amber indicator light flashing.
MT-007-182018-08-27. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES; ENGINE; ELECTRICAL SYSTEM. ENGINE NO START AND / OR REAR VIEW MONITOR DISPLAY IS BLURRY DUE TO AFTERMARKET ELECTRICAL DEVICE: Some customers may complain about the following: Engine no start. A blurry rear view monitor display. This may be caused by an aftermarket accessory device. Some aftermarket electrical devices (e.g., an accessory cell phone charger) may create excessive electrical noise. The noise may interrupt some of the vehicle electrical systems. Below are a few examples of an aftermarket cell phone charger that is interrupting the vehicle electrical systems.
MT-006-182018-08-27. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:HATCHBACK/LIFTGATE. POWER LIFTGATE INOPERATIVE WITH DTC U3003:16: Some customers may complain about an inoperative power liftgate (PLG) with DTC U3003:16 (Power liftgate (PLG) control module power supply voltage low input) is stored in memory. This may be caused by low vehicle battery voltage.
MT-004-182018-08-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. ELECTRICAL CONCERN AND/OR MULTIPLE DTC'S DUE TO AFTERMARKET DEVICE: 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.
SA-036-182018-08-20. Service bulletin. ELECTRICAL SYSTEM. MAZDA MOBILE START (MMS) APP ERROR MESSAGE INSTALLED ON ANDROID DEVICES: Customers may get an error message "Device no longer has access or service." for the MMS APP installed on android devices starting 8/1/18. Inform the customer that all they need to do is update the MMS APP to the latest version to get rid of the error message.
SA-034-182018-08-20. Service bulletin. EQUIPMENT. MAZDA CONNECT SYSTEM FREQUENTLY ASKED QUESTIONS (FAQ)
04-006-18-34962018-08-20. Service bulletin. SERVICE BRAKES, HYDRAULIC. Some vehicles may exhibit a squeaking noise from the front brakes during light braking. This concern usually occurs when the front brake pads have been worn to certain levels. Also, as the pads wear, the chamfer goes away and the grease between the pad and the shim deteriorates.To eliminate this concern, the chamfer shape of the brake pad has been modified to increase its durability.
02-013-18-34912018-08-20. Service bulletin. SUSPENSION. Some vehicles may exhibit a crack on the front shock absorber dust boot (1). This may be caused by the dust boot having insufficient resistance to the cold. The shape and material of the dust boot has been changed to improve its resistance to cold.
02-003-18-35012018-08-20. Service bulletin. WHEELS. Some vehicles may have aluminum alloy type wheel(s) with one of the following paint damage conditions shown in the sample photos below. The damage extends to the front surface of the aluminum wheel partly or entirely.
01-010-18-3442b2018-08-20. Service bulletin. ENGINE. Some vehicles may exhibit an engine misfire during acceleration with the check engine light flashing and the following DTC(s). P0302:00 - Cylinder No.2 misfire detected and/or P0303:00 - Cylinder No.3 misfire detected NOTE: Even if a misfire occurred, the DTCs may not be stored because they are set after the continuous misfire occurred for 2 drive cycles. In this case, check if the following information is available to verify if the vehicle is applicable to this Service Information. The customer states that the misfire occurred and at the same time the check engine light started flashing. DTC U0401:00 ((ABS) Signal error from PCM) is detected.This concern may be caused if the exhaust manifold variable valve shaft (1) is out of alignment and/or the exhaust manifold variable valve housing (2) is out of shape. The exhaust manifold variable valve (3) then interferes with the housing and becomes stuck closed when the engine is hot. To eliminate this concern in the future, the production processes and controls have been improved.
09-020-18-3458a2018-08-20. Service bulletin. EQUIPMENT. 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.Customers experiencing related concerns should have their vehicle and/or device inspected according to the following procedure.
09-010-18-3440a2018-08-20. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 59.00.546 or later). NOTE: For 2016 CX-9 with version earlier than 59.00.441, the tachometer function will be removed from the Active Driving Display as part of Mazda's continuing efforts to improve safety and reduce driver distraction. Please explain this to the customer before updating the software. If the customer agrees, turn off the tachometer display on the AD-Display tab in MAZDA CONNECT Settings before performing the update. NOTE: If the customer has customized MAZDA CONNECT with something like a different background using unauthorized software, make sure they know the following information before updating MAZDACONNECT to avoid any issues later on. Updating MAZDA CONNECT to the latest version will erase any customization created by unauthorized software. Unauthorized customization software will not work on the latest version of MAZDA CONNECT software. The latest version of MAZDA CONNECT software cannot be rolled back to an earlier version. Mazda does not recommend unauthorized customization of MAZDA CONNECT due to the possibility of unexpected problems. Any issues related to this will not be covered under Mazda warranty policy.
SA-031-182018-08-20. Service bulletin. EQUIPMENT. When troubleshooting a radar unit, DO NOT swap it with another vehicle. Radar units are configured to the original vehicle, and if installed in another vehicle, a configuration error will occur. Refer to MGSS (RADAR UNIT INSPECTION) for proper diagnosing.
SA-029-182018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. IMPORTANT: If you encounter an IDS inoperative problem with VCM-II license expiration message, follow the instructions below: 1. CLICK HERE to download the resetting tool to your PC desktop. 2. Reboot your PC, DO NOT start any application after restarting. 3. Run the resetting tool by double clicking the "Reset.bat" file (on your desktop from step 1). 4. Press any key after reading the notifications about the resetting tool.
SA-027-182018-07-02. Service bulletin. AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES. Some customers may complain that the passenger seat belt warning light is ON and the PASS AIRBAG OFF indicator light is OFF with no front passenger in the seat. This may be caused by an electrical device (smart phone, tablet, laptop. etc.) placed on the front passenger's seat.

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