2020 Mazda CX-30 Technical Service Bulletins

687 technical service bulletins (TSBs) are on record for the 2020 Mazda CX-30. 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.

• 10171779Feb 18, 2020Equipment, Electrical system. MAZDA CONNECTED SERVICES - FREQUENTLY ASKED QUESTIONS (FAQ). 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, Dealer Processes, Educational Videos, Resources
• 10171788Feb 11, 2020Equipment, Electrical system. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. REPAIR PROCEDURE NOTE: Before proceeding:  Document the vehicle current CMU software version.  Confirm that the Connectivity Master Unit (CMU) is updated to the latest software version.  Go to MGSS - Infotainment - MAZDA CONNECT Updates  Confirm that the customers device is…
• 10171783Feb 5, 2020Equipment, Electrical system, Engine cooling. If you encounter a vehicle with the oil pressure warning light on or a check engine light on with DTC P0524 and/or P055F, and no driveability concerns or mechanical noises, perform the following inspection:
• 10171777Feb 5, 2020Brakes, Equipment, Electrical system. 2020 CX-30 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2020 CX-30 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns.
• 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.
• 10170942Jan 23, 2020Seats. Some customers may complain that their seat warmers or seat ventilation do not turn on when the engine is restarted after being left on when turning off the engine. The logic has changed from previous Mazdas where the seat warmers and seat ventilation automatically turned on when the engine was restarted.
• 10170937Jan 23, 2020Electrical system. Some customers may complain about a MyMazda App 400C04 error when enrolling their vehicle to connected vehicle services.
• 10170814Jan 23, 2020Steering. Some customers may complain that the steering wheel is off center more than 3° even when driving straight on a flat road. Customers having this concern should have their vehicle repaired using the following repair procedure.
• 10170936Jan 16, 2020Electrical system, Equipment. On some vehicles, the Commander switch might be inoperative. This could be caused by fuse F13 (15A) being removed instead of F15 (15A) at the factory in the lower panel compartment on the left side of the steering wheel.
• 10170944Jan 15, 2020Wheels, Visibility (wipers, defrost, mirrors), Equipment, Electrical system. 2020 CX-30 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2020 CX-30 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns.
• 10170830Jan 15, 2020Electrical system, Equipment. TELEMATICS COMMUNICATION UNIT (TCU) INITIALIZATION PROCEDURE: When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to initialize the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.
• 10170818Jan 13, 2020Seats. At PDI or when new vehicle is delivered, some customers may complain about wrinkles on the leather seat cushion and/or seat back surface. Customers having this concern should have their vehicle repaired by a qualified upholstery repair specialist using the following repair procedure.
• 10170817Jan 13, 2020Equipment. When encountering a vehicle with paint damage, refer to the "Mazda Pocket Paint Guide" to determine cause, prevention, remedy, and warranty coverage (if applicable). Copies of the Mazda Pocket Paint Guide are available for order on Mazda e-Store (part number: 9999-95-MPPG-12).
• 10170827Jan 10, 2020Equipment, 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, Dealer Processes, Educational Videos, Resources.
• 10170824Jan 9, 2020Equipment. AUXILIARY KEY CUTTING TEMPORARY PROCEDURE: Currently, Mazda does not have a way to cut the auxiliary keys for the new style remote transmitter as they use a different key code than the previous transmitter key. Follow the repair procedure if one or both auxiliary keys are lost:
• 10170661Jan 9, 2020Equipment, Electrical system. 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…
• 10170822Jan 6, 2020Electrical system, Equipment. WIRELESS CHARGING PAD INSTALLATION INSTRUCTIONS CORRECTION: Section 6 of the Wireless Charging Pad instructions call for the use of an "ultrasonic cutter" to cut a rectangular hole for the harness to pass through and to serve as an access point to pop the wireless charger base out should service be required. Since an "ultrasonic cutter" is not readily available, follow the Repair Procedure to cut the rectangular…
• 10169540Dec 19, 2019Equipment, Engine cooling. If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold internally before installing a replacement engine assembly. If the intake manifold is not cleaned properly, the replacement engine may fail prematurely. Metallic debris from the old engine (with catastrophic internal mechanical failure) may rest inside the intake manifold.
• 10169559Dec 18, 2019Equipment, Electrical system, Visibility (wipers, defrost, mirrors), Wheels. 2020 CX-30 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2020 CX-30 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns.
• 10169513Dec 18, 2019Other or unknown, Transmission and drivetrain. WARRANTY GUIDELINES FOR RETURNED TRANSMISSION CORES. Be advised that the Mazda Remanufactured Transmission Center (MRTC) has found that up to 30% of the returned transmission cores either included the wrong transmission oil cooler, or the oil cooler was missing altogether. IMPORTANT NOTE: ALWAYS REMEMBER TO INCLUDE THE ORIGINAL OIL COOLER WITH THE RETURNED TRANSMISSION CORE!
• 10169556Dec 17, 2019Equipment. MAZDA CONNECTED SERVICES - FREQUENTLY ASKED QUESTIONS (FAQ). 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, Dealer Processes, Educational Videos, Resources
• 10169511Dec 17, 2019Other or unknown, Equipment. When performing any service or repair on a customer's 2020 CX-30, use MDARS to switch to Restricted Transmitting Mode. Restricted Transmitting Mode:  Restricts MyMazda App remote functions.  Prevents error messages being sent to the customer during vehicle service or repair. NOTE: Cancel Restricted Transmitting Mode after completing vehicle service or repair.
• 10169558Dec 13, 2019Wheels, Equipment, Electrical system, Visibility (wipers, defrost, mirrors). 2020 CX-30 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2020 CX-30 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns.
• 10169543Dec 13, 2019Equipment, Other or unknown, Visibility (wipers, defrost, mirrors). Accessory instructions can be found in the Accessory eCatalog. https://ecatalog.trademotion.com/. Audio/Electrical, Exterior, Interior: - Mazda Mobile Start (MMS) - Remote Engine Start - Wireless Charging Pad - Mirror - Navigation - Rear Parking Sensors - Rear Seat Entertainment - Smartphone Screen Mirroring - Bumper Trim/Guards - Door Mirror Caps - Fog Lights - Moonroof Wind Deflector - Roof Rack - Side Window…
• 10169537Dec 13, 2019Equipment, Engine cooling. There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service Bulletin is to inform you about the water pump sealing mechanism and the criteria if replacement is necessary or not.
• 10169507Dec 12, 2019Equipment. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 10169555Dec 6, 2019Equipment. MAZDA CONNECTED SERVICES - FREQUENTLY ASKED QUESTIONS (FAQ). 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
• 10169509Dec 5, 2019Engine cooling, Transmission and drivetrain. GUIDE LINES AND PHOTOS TO DETERMINE IF FLUID/OIL SEEPAGE OR LEAK IS SEVERE ENOUGH TO REQUIRE WARRANTY REPAIR OR TO CLEAN AND MONITOR. Some customer's might state that they notice fluid or oil leaking/dripping on the ground when the vehicle is parked. For this concern, inspect the vehicle for any trace of a fluid or oil leak and use the following examples as a guide to determine if it is severe enough to require a…
• 10169557Dec 3, 2019Visibility (wipers, defrost, mirrors), Electrical system, Equipment, Wheels. 2020 CX-30 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2020 CX-30 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns.
• 10168142Nov 21, 2019Equipment, Forward collision avoidance. FSC dynamic aiming (mid-drive aiming) may not complete if the vehicle is driven on a road as described below:  The road lane markings are covered by snow and are not visible.  There are no road lane markings on the road surface.  The road is winding and the vehicle cannot drive straight (300 m / 984 ft or more turning radius is required). FSC dynamic aiming is completed if the following conditions…
• 10168139Nov 20, 2019Electrical system, Equipment, Engine cooling. 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  DTC B13D3:94 (Communication error with remote transmitter) stored.This may be caused by:  A key in a purse near a cell phone. The cell phone radio…
• 10168074Nov 7, 2019Equipment, Electrical system, Forward collision avoidance. Some vehicles may experience M-MDS (MDARS) showing the front radar dynamic aiming is incomplete, although the procedure is completed. This is caused by faulty front radar software logic and a mass production change is planned. If the screen below is displayed after the front radar dynamic aiming is performed, check the vehicle using the following inspection procedure.
• 10168115Nov 5, 2019Electrical system, Equipment. On the 2019 Mazda3 (BP) and and all 2020 Mazda vehicles (except CX-3), the CR2032 button cell battery is required for the new type remote transmitter. If it is mistakenly replaced with the conventional CR2025 used in the previous type remote transmitter, it may cause a malfunction. Verify the button cell battery type before replacing it.
• 10166853Oct 30, 2019Equipment, Electrical system. Currently, Mazda does not have a way to cut the auxiliary keys for the new style remote transmitter as they use a different key code than the previous transmitter key. Follow the repair procedure if one or both auxiliary keys are lost:
• 10166846Oct 17, 2019Electrical system, Equipment. On 7th generation vehicle (2019-2020 Mazda3 (BP) and 2020 CX-30 (DM)), when the door is opened/closed with the ignition switch off, the battery current is approximately 7A, which is three times larger than previous generation models (2.5A on Mazda6 (GL)). In addition, after the door is closed, a 6A current continues for 6 minutes on 7th generation vehicles.
• 10165677Sep 25, 2019Equipment, Electrical system. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. NOTE: Before proceeding: Confirm that the Connectivity Master Unit (CMU) is updated to the latest software version. Go to MGSS - Infotainment - MAZDA CONNECT Updates, Confirm that the customers device is updated to the latest software version. Apple Carplay/Android Auto FAQ, go to SA-001/19.
• 10186263Dec 19, 2016Electrical system, Equipment. MAZDA Mobile start (MMS) cannot communicate with vehicle

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