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Service bulletins for the 2020 Mazda CX-5

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.

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

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
MT-003/222022-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, GASOLINE. Some customers may complain about a tapping or knocking noise coming from the rear seat after fuel fill. The concern will likely occur if the fuel tank is overfilled (more fuel is added after the fuel pump nozzle shuts off automatically) or filled up normally in high ambient temperatures and the fuel expands. No repair is needed. Explain to the customer not to continue filling after nozzle shut off. Refer customer to Owner's Manual Warning:
04-001/222022-04-05. 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.
02-002/222022-04-05. Service bulletin. EQUIPMENT; SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY. Some customers may complain about oil seepage or oil leakage from the rear shock absorbers. This concern may be due to a lack of sealing performance. To eliminate the oil seepage/leakage, the rear shock absorbers production process has been modified.
01-003/222022-04-05. 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.
15-002/222022-02-04. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; EQUIPMENT; FORWARD COLLISION AVOIDANCE. Some vehicles may exhibit either or both of the following symptoms. 1. The SCBS warning light is illuminated with DTC U045A:68 [FORWARD SENSING CAMERA (FSC)]. U045A:68 Error signal received from parking assist unit 2. The parking sensor indicator is flashing with one or more of the following DTCs of PARKING ASSIST SYSTEM. B1B36:14 Front corner ultrasonic sensor (RH) circuit malfunction B1B36:2A Front corner ultrasonic sensor (RH) characteristic malfunction B1B38:14 Front ultrasonic sensor (RH) circuit malfunction B1B38:2A Front ultrasonic sensor (RH) characteristic malfunction B1B40:14 Front corner ultrasonic sensor (LH) circuit malfunction B1B40:2A Front corner ultrasonic sensor (LH) characteristic malfunction B1B42:14 Front ultrasonic sensor (LH) circuit malfunction B1B42:2A Front ultrasonic sensor (LH) characteristic malfunction Due to insufficient waterproof performance of the front harness short cords (1), water may enter in and accumulate in the C-11 (LH) or C-12 (RH) connectors (2) causing a short circuit between wires and an improper signal being sent from the parking (ultrasonic) sensor to the parking sensor unit. To eliminate this concern, the production process of the front harness short cord has been improved to increase waterproof performance.
15-001/222022-02-04. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION; LANE DEPARTURE; ELECTRICAL SYSTEM; EQUIPMENT. Some vehicles equipped with Blind Spot Monitoring (BSM) may experience a BSM indicator light on the outer door mirror, even if there is no vehicle in the alert (blind spot) area. NOTE: This concern occurs only after a cold start. As the BSM control module temperature rises, the BSM system returns to normal operation. Due to BSM control module production variances, a false detection may occur in some units when the BSM temperature in the control module has not yet reached normal operating temperature. To eliminate this concern, the control logic of the BSM control module has been modified.
09-003/222022-02-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Some vehicles may exhibit the following malfunctions: 1. The film on the center display is peeling off, as shown in the illustration below. This may be caused by cleaning the center display surface. Water and/or a cleaning solution may get into the scratches on the film and cause the film to start peeling. To eliminate this concern, the anti-reflective film has been modified to reduce scratches during cleaning. 2. The map on the center display may scroll by itself (without operating the map). The thermal expansion and contraction of the touch panel may cause a deformation. Loosening of the touch panel resulting in increased wire resistance may be causing the map malfunction. To eliminate this concern, a protection film has been added in the touch panel to prevent deformation.
SA-001/222022-02-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM; BACK OVER PREVENTION. Symptom troubleshooting tables to diagnose MAZDA CONNECT concerns. No. 1 Blank Screen No. 2. Rear View Camera is not displayed No. 3 Rebooting No. 4 Infotainment System Has No Sound No. 5 Commander Switch Does Not Work No. 6 Bluetooth device will not pair No. 7 Incorrect GPS position No. 8 Voice Recognition Does Not Work No. 9 Cannot Make a Hands-Free Call No. 10 Cannot Play Bluetooth Audio No. 11 Other Symptoms No. 12 How to update the Navigation SD Card Map No. 13 How to Check Navi SD Card VIN Lock
09-012-21-3801b2022-01-06. 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-019-21e2021-12-02. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. MAZDA CONNECT SYMPTOM TROUBLESHOOTING [6TH GENERATION VEHICLES]. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns
SA-052-212021-12-02. 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.
15-004-21-38352021-12-02. 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.
09-016-21-3797c2021-12-02. Service bulletin. EQUIPMENT; STRUCTURE. Some vehicles may exhibit rust or paint peeling at the inside edge of the front door(s). This may be caused by dust adhering between the front door edge and the rear door weatherstrip, which rubs/damages the paint during vehicle operation (door opening/closing and vibration while driving). NOTE: If the rust/paint peeling is seen on the outer side of the door, this service bulletin does not apply.
08-003-21-38372021-12-02. Service bulletin. EQUIPMENT; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES; SEATS. Some vehicles equipped with a seat ventilation system may have the passenger seat belt warning light on, even though there is no passenger in the seat. This concern may be caused by an overly sensitive detection of the occupancy sensor. The weight of the seat ventilation unit may be captured by the occupancy sensor, resulting in a false detection.
SA-031-21c2021-11-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. 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. Dealers can now utilize the Limited Parts Ordering (LPO) page on eMDCS to order the repair parts for 2.5L (with cylinder deactivation) and 2.5L turbo cylinder head repairs. There is no longer a need to contact hotline for part ordering. If there are any questions on part ordering or part status, contact the DAG group for assistance.
SA-031-21b2021-11-01. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN; EQUIPMENT. 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.
07-004-21-38302021-10-31. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM; EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:AIR HANDLER/CHAMBER, DUCTS, AND VALVES. Some vehicles may exhibit insufficient A/C performance / insufficient airflow from vents or ducts. These concerns may be caused by an evaporator temperature sensor malfunction due to insufficient water-proofing. This may result in a detection error and therefore, improper operation of the A/C system. To eliminate this concern, the production process of the evaporator temperature sensor has been modified to ensure proper water-proofing.
01-013-21-37532021-10-31. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Some vehicles may have coolant leaks at the cylinder head around the exhaust manifold (as shown below). There may be cracks at the stud bolt hole (1) or at the outside of the exhaust manifold (2). Cracks may be caused by: Deformation of the exhaust manifold during usage causing unexpected force to certain areas of the cylinder head. Residual stress generated during production in the cylinder head material may be greater than expected. The external force from the exhaust system when driving over bumps may cause unexpected force to certain areas of the cylinder head. To eliminate this concern, the design of the exhaust manifold gasket and the cylinder head has been modified to reduce the force on the cylinder head.
SA-019-21d2021-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MAZDA CONNECT SYMPTOM TROUBLESHOOTING [6TH GENERATION VEHICLES]. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
SA-019-21c2021-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MAZDA CONNECT SYMPTOM TROUBLESHOOTING [6TH GENERATION VEHICLES]. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
MT-002-212021-10-02. 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.
15-003-21-38282021-10-02. Service bulletin. VISIBILITY; LANE DEPARTURE; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. Some vehicles equipped with Blind Spot Monitoring (BSM) may experience a BSM indicator light on the outer door mirror, even if there is no vehicle in the alert (blind spot) area. NOTE: This concern occurs only after a cold start. As the BSM control module temperature rises, the BSM system returns to normal operation. Due to BSM control module production variances, a false detection may occur in some units when the BSM temperature in the control module has not yet reached normal operating temperature. To eliminate this concern, the control logic of the BSM control module has been modified.
09-028-21-37482021-10-02. Service bulletin. STRUCTURE; EQUIPMENT. Some customers may complain about a whistling noise heard from the top of the A-pillar area when driving at highway speeds. When driving under following conditions, a negative pressure is generated on the doors pulling them outward and resulting in weatherstrip vibration. The vehicle is exposed to a side wind while driving at highway speeds. The vehicle is exposed to a strong side wind while driving at a speed slightly higher than highway speed.
09-021-21-3818b2021-10-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. All Mazda Connect vehicles in new car inventory must be updated to the software version listed below in this TSB as part of the New Car Ready Step 3 process. Make sure the new vehicle specialist receives a copy of this bulletin. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 74.00.230 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 MAZDA CONNECT 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.
09-016-21-3797b2021-10-02. Service bulletin. STRUCTURE; EQUIPMENT. Some vehicles may exhibit rust or paint peeling at the inside edge of the front door(s). This may be caused by dust adhering between the front door edge and the rear door weatherstrip, which rubs/damages the paint during vehicle operation (door opening/closing and vibration while driving).

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