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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: Electrical system are shown. Show all

Bulletins, newest first
SA-001-22d2022-09-06. Service bulletin. ELECTRICAL SYSTEM. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
09-024-222022-08-04. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer.
01-006-222022-07-06. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the battery periodically according to the repair procedure.
SA-039-222022-07-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT; UNKNOWN OR OTHER. Some customers may complain about scratches on the instrument cluster lens.
09-018-222022-06-04. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 74.00.311 or later).
SA-001-22c2022-06-04. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT; UNKNOWN OR OTHER. Use the symptom troubleshooting tables to diagnose MAZDA CONNECT concerns.
SA-026-222022-05-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Apple CarPlay / Android Auto Frequently Asked Questions (FAQs)
SA-001-22c2022-05-05. Service bulletin. ELECTRICAL SYSTEM. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
SA-001-22b2022-04-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
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.
SA-001-222022-03-04. Service bulletin. ELECTRICAL SYSTEM. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
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.
09-004/222022-02-04. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. Some CX-5 and CX-30 customers may find that the liftgate does not close when pressing the power liftgate (PLG) rear switch (A) located on the interior liftgate trim. This may be caused by PLG switch corrosion. Water from a high pressure car washer and/or condensation may drip onto the switch connector and cause corrosion. To eliminate this concern, the PLG rear switch has been modified with a waterproof connector. Some Mazda3, CX-30 and MX-30 customers may complain that the vehicle door locking system does not work when the door lock switch on the liftgate interior trim is pressed. DTC B11C4:23 (BCM - liftgate lock switch circuit malfunction) may be stored. This may be caused during a high pressure car wash and/or condensation. Water may enter through the rear center brand emblem base component and drip onto the switch connector causing corrosion. The rusted connector may also cause a battery drain. To eliminate this concern, the rear center brand emblem base has been modified to prevent water entry (Mazda3) and the rear harness has been modified to prevent water infiltration (Mazda3, CX-30 and MX-30).
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.
01-016-21-38532022-01-06. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Lack of Power When Accelerating in Cold Temperatures: Some customers may complain about lack of power when accelerating in cold temperatures (below 0 degrees F). To avoid slippage, engine power is restricted in cold temperatures, even when the road condition is not slippery. To eliminate this concern, the PCM and TCM control software has been modified to restrict engine power only when tire slippage is detected between the front and rear wheels in cold temperatures. Customers having this concern should have their vehicle repaired using the following repair procedure.
01-006-21-3779b2022-01-06. Service bulletin. ELECTRICAL SYSTEM. Battery Maintenance: This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the battery periodically according to the repair procedure.
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.
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.
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.
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.
09-021-21-3818b2021-10-02. 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.

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