2021 Mazda CX-5 Technical Service Bulletins

501 technical service bulletins (TSBs) are on record for the 2021 Mazda CX-5. 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.

• 11012344Dec 24, 2024Engine. Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat installed inside of the suspected coolant control valve on certain 2018-2025 CX-5, 2019-2023 Mazda3, 2019-2022 CX-3, 2018-2021 Mazda6 and 2020-2023 CX-30 vehicles.
• 11012345Dec 6, 2024Other or unknown, Electrical system, Engine. Frequently Asked Questions (FAQ)
• 11011138Nov 15, 2024Other or unknown. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF Climate Control 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 11011137Nov 9, 2024Engine. On certain subject vehicles, the check engine light is illuminated with diagnostic trouble code (DTC) P0126, due to the fail-safe thermostat being stuck open. Additionally, you may notice one or more of the following symptoms: -Engine takes longer to warm up. -Engine temperature gauge fluctuates. -Low coolant temperature indicator (blue) light stays on longer or turns on while driving. -Poor heater performance…
• 11011141Nov 8, 2024Other or unknown. Some customers may report concerns with interior upholstery surface stains particularly on high contact areas (e.g.: seats, steering wheel, door panels, shifter...etc.). This may be caused by skin oils or chemicals such as hand lotions.
• 11011140Nov 5, 2024Electrical system. When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.
• 11011133Nov 5, 2024Engine. Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle.
• 11010990Nov 5, 2024Exterior lighting. Some customers may complain that the headlights get foggy or have water spots inside. This concern may be caused by the anti-fog coating not preventing inner condensation under certain situations. To eliminate this concern, the anti-fog coating performance was improved.
• 11009665Oct 31, 2024Engine. Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat in the coolant control valve on certain CX-5, Mazda3, CX-3, Mazda6 and CX-30 vehicles that are equipped with the suspected coolant control valve.
• 11009664Oct 31, 2024Engine. Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat in the coolant control valve on certain CX-5, Mazda3, CX-3, Mazda6 and CX-30 vehicles that are equipped with the suspected coolant control valve.
• 11009654Oct 24, 2024Transmission and drivetrain. The SKYACTIV-DRIVE FW6A-EL AT uses “Automatic Transmission Fluid (ATF) Type: FZ”. Only use “ATF-FZ” to fill or top off the fluid level. ATF-FZ is specially designed for use in the SKYACTIV-DRIVE series AT. It is a low viscosity formula with less friction for better fuel economy. NOTE: ATF-FZ is colored blue for easy identification.
• 11009663Oct 22, 2024Engine. SPECIAL SERVICE PROGRAM - SSPD5 - WARRANTY EXTENSION - MULTI-MODEL - VALVE STEM SEALS CLASS ACTION In conjunction with a Class Action Settlement, Mazda Motor Corporation has decided to conduct an extension of the Engine powertrain warranty related to excessive oil consumption.
• 11009630Oct 22, 2024Transmission and drivetrain. Some customers may complain of a shift shock when shifting from 2nd to 3rd when the engine is cold. This is caused by improper TCM control logic. To eliminate this concern, the TCM control logic has been modified. NOTE: If the calibration file of the concerned vehicle is not found in the Calibration Files Information below, this Service Information is not applicable.
• 11009634Oct 12, 2024Body and structure. Some customers may complain that the power liftgate (PLG) may open unintentionally while the vehicle is parked or stopped. Due to the shape of the 7th generation remote transmitter, the power liftgate button may be long pressed unintentionally in a pocket or a bag. To eliminate this concern, the keyless control specification has been modified. The button press time has been increased from 0.5 seconds to 1 second.
• 11009629Oct 9, 2024Transmission and drivetrain. Some customers may complain of a shift shock when shifting from 2nd to 3rd when the engine is cold. This is caused by improper TCM control logic. To eliminate this concern, the TCM control logic has been modified. NOTE: If the calibration file of the concerned vehicle is not found in the Calibration Files Information below, this Service Information is not applicable.
• 11009644Oct 5, 2024Brakes. 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.
• 11009628Oct 3, 2024Transmission and drivetrain. Some customers may complain of a shift shock when shifting from 2nd to 3rd when the engine is cold. This is caused by improper TCM control logic. To eliminate this concern, the TCM control logic has been modified. NOTE: If the calibration file of the concerned vehicle is not found in the Calibration Files Information below, this Service Information is not applicable.
• 11009647Oct 2, 2024Engine. 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. Hotline and MASH authorization is not required to order parts for performing this repair. If there are any questions on part ordering or part status, contact the Dealer…
• 11008568Sep 25, 2024Electrical system. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:00-TCU (Emergency call unit/telematics communication unit internal malfunction) or U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the…
• 11008580Sep 24, 2024Electrical system. Mazda Connect Services - Frequently Asked Questions (FAQ)
• 11008574Sep 24, 2024Other or unknown, Electrical system. Some customers may experience a Connected Vehicle failure. The MyMazda App may display an Error Code. This document provides Error Code description and recovery information to assist with repairs.
• 11008578Sep 13, 2024Electrical system. When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.
• 11008577Sep 12, 2024Other or unknown. Some customers may complain about scratches on the instrument cluster lens.
• 11008576Sep 12, 2024Electrical system. Qi Wireless Charger symptom troubleshooting.
• 11008579Sep 11, 2024Electrical system. Mazda Connect Services - Frequently Asked Questions (FAQ)
• 11008575Sep 11, 2024Electrical system. Some customers may complain about the Active Driving Display not displaying turn by turn (TBT) travel direction or navigation information.
• 11008573Sep 11, 2024Electrical system, Engine, Exterior lighting. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF Climate Control
• 11008571Sep 11, 2024Other or unknown, Electrical system. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 11006981Aug 29, 2024Engine. Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle.
• 11007029Aug 26, 2024Electrical 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 known good terminal. To measure the voltage/resistance avoiding any terminal damage.
• 11007009Aug 21, 2024Brakes. 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.
• 11007022Aug 15, 2024Body and structure. Some vehicles may experience exterior trim heat damage such (melted, separating, etc.) when parked near a glass building or Low-E windows. This may be caused by the sun's reflection.
• 11007019Aug 15, 2024Electrical system, Other or unknown, Engine. 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 MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices.
• 11007018Aug 13, 2024Body and structure. Interior parts made of resin have antistatic coating to prevent dust from sticking on the surfaces, and depending on the conditions of use, the antistatic components may crystallize slightly, giving an appearance of white stains on the surface. To remove the stains, wipe the stained surface with a towel soaked with water mixed with a small portion of a neutral detergent. If the white stains reappear again, simply…
• 11007013Aug 12, 2024Other or unknown. Auxiliary key blank cutting procedure. There are currently 2 methods for cutting a new auxiliary key blank. A. Auxiliary Key Trace Cut Method B. Auxiliary Key Code Cut Method
• 11006987Aug 8, 2024Electrical system, Other or unknown. 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…
• 11006904Aug 8, 2024Other or unknown. Some customers may complain about an unusual thumping / rattling noise coming from the engine compartment. The noise is most pronounced under the following conditions: Engine at idle Transmission in drive Foot on the brake pedal A/C OFF Audio OFF
• 11007010Aug 7, 2024Engine, Transmission and drivetrain. 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 repair, or just to clean the area and monitor it at the next service.
• 11006917Aug 6, 2024Other or unknown, Body and structure, Electrical system. Some customers may complain that their liftgate does not open. This can mean a range of things, from the liftgate not unlatching to the power liftgate (PLG) not opening automatically. If you confirm that the customer's concern is that the liftgate does not unlatch correctly, follow the repair information below.
• 11006995Aug 5, 2024Electrical system, Other or unknown. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 11005671Jul 29, 2024Other or unknown. Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not recommended. These services are unnecessary and create unneeded expenses for your customers.
• 11005549Jul 25, 2024Body and structure, Electrical system. Some customers may complain that the power liftgate (PLG) may open unintentionally while the vehicle is parked or stopped. Due to the shape of the 7th generation remote transmitter, the power liftgate button may be long pressed unintentionally in a pocket or a bag. To eliminate this concern, the keyless control specification has been modified. The button press time has been increased from 0.5 seconds to 1 second.
• 11005551Jul 18, 2024Seats. At PDI or when new vehicle is delivered, some customers may complain about wrinkles on the leather seat cushion and/or seat back surface. NOTE: This repair is not a permanent fix, it is meant to make new seats look their best when the vehicle is first presented to the customer. • Wrinkles may not be completely removed after the repair is completed. • Leather is a natural material and may develop some wrinkles due…
• 11005550Jul 17, 2024Seats, Electrical system. Some vehicles may experience the seat ventilation system still on after the engine has been turned off, in some cases this causes the battery to be completely discharged and not rechargeable. This is caused by a deterioration in the seat ventilation control unit. To eliminate this concern, the material for the circuit of the seat ventilation control unit has been modified.
• 11005528Jul 9, 2024Brakes. Front Brake Noise Symptom 1: Some vehicles may exhibit a click noise when first moving forward or reverse from a stop OR when first applying the brakes while moving forward at slow speeds. This is caused by 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…
• 11005538Jul 2, 2024Electrical system. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
• 11003395Jun 29, 2024Other or unknown. Mazda Connected Services - Frequently Asked Questions (FAQ)
• 11003350Jun 28, 2024Engine. Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to this service…
• 11003354Jun 22, 2024Electrical system, Other or unknown. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
• 11003353Jun 22, 2024Engine. Some vehicles may exhibit oil seepage or oil leak onto the engine front cover, which becomes more apparent with dust adhesion.

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