2024 Mazda 3 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical diagnostics with wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Trims covered
- 2.5 Turbo Premium Plus Hatchback 4-Door
- 2.5 S Sedan 4-Door
- I Sport Hatchback 4-Door
- Carbon Edition Hatchback 4-Door
- GS Sedan 4-Door
- Premium Hatchback 4-Door
- i Grand Touring Hatchback 4-Door
- GT Sedan 4-Door
- Signature Sedan 4-Door
- Carbon Edition Sedan 4-Door
- Signature Hatchback 4-Door
- 2.5 Turbo Premium Plus Sedan 4-Door
- 2.5 Carbon Turbo Sedan 4-Door
- Select Sport Hatchback 4-Door
- Preferred Sedan 4-Door
- i Sedan 4-Door
- i Grand Touring Sedan 4-Door
- Select Sport Sedan 4-Door
- GX Sedan 4-Door
- I Sport Sedan 4-Door
- Preferred Hatchback 4-Door
Engines covered
- 2.5L 2488CC 152Cu. In. l4 GAS DOHC Turbocharged
- 2.5L 2488CC 152Cu. In. l4 GAS DOHC Naturally Aspirated
- 2.0L 1998CC 122Cu. In. l4 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Mazda North American Operations (Mazda) is recalling certain 2024 CX-90 and MAZDA3 vehicles. Due to a software error, the rearview, front, and/or side camera images may not appear on the display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
A camera that does not display an image can reduce the driver's view, increasing the risk of a crash or injury.
Dealers will update the view monitor control module software, free of charge. Owner notification letters were mailed December 20, 2023. Owners may contact Mazda customer service at 1-800-222-5500 Option 6. Mazda's number for this recall is 6223J.
Mazda North American Operations (Mazda) is recalling certain 2024 Mazda 3, CX-30, and 2025 CX-50 vehicles. A malfunction in the forward sensing camera (FSC) may prevent the automatic emergency braking system and the lane-keep assist system from functioning. In addition, the headlights will not automatically adjust from high beams to low beams as intended.
Automatic braking, steering assist, and headlight control systems that do not function as intended can increase the risk of a crash.
Dealers will inspect and replace the forward sensing camera as necessary, free of charge. Owner notification letters were mailed September 24, 2024. Owners may contact Mazda customer service at 1-800-222-5500, Option 6. Mazda's number for this recall is 6824H.
Mazda North American Operations is recalling certain 2024-2025 Mazda3 and CX30 vehicles. The Sophisticated Air Bag Sensor (SAS) units may set an error code and deactivate the air bags, due to a low battery condition.
Air bags that do not deploy in the event of a crash increase the risk of injury.
Dealers will reprogram the SAS unit with improved software or replace the unit, free of charge. Owner notification letters were mailed July 24, 2025. Mazda's number for this recall is 7525E.
This service alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-047/25 10/07/25 DESCRIPTION When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to
This SA supersedes the previously issued SA(s) listed below. The changes are noted below in Red. SA-029/25 10/16/25 and 06/02/25 DESCRIPTION This service information provides testing and charging procedures in order to promote proper batter
This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-011/25 10/16/25 and 02/27/25 DESCRIPTION Some customers will report that their fuel door (AKA, fuel filler door, fuel lid, and fuel-filler lid) wa
DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact DAG (Dealer
This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all ma
This SA supersedes the previously issued bulletin(s) listed below. The changes are noted below in Red. SA-007/25 10/22/25, 06/02/25 and 02/03/25 DESCRIPTION The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8
This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-002/19 09/30/19 and 12/19/19 DESCRIPTION If an engine assembly is replaced after a catastrophic internal mechanical failure, cl
Some customers may experience a message "TCU Malfunction. Have the Vehicle Inspected" in the instrument cluster. Additional symptoms that may occur: Connected Vehicle One Time Passcode (OTP) may fail. Connected Vehicle Remote functions may
Showing the 8 most recent of 234 technical service bulletins on file with NHTSA.
On July 1, 2025, I was involved in a severe rear-end collision while driving my 2024 Mazda3 manual hatchback. The impact was forceful enough to shatter the rear windshield, leave a deep dent in the tailgate, and bend the trailer hitch mount under the vehicle by several inches. Despite this, none of the airbags deployed, and there were no airbag warning lights before or after the crash. After the incident, I checked my vehicle’s VIN on NHTSA’s recall lookup tool and discovered that Recall 7525E had been issued on June 6, 2025, for a critical airbag sensing system defect (SAS module), which can
The contact leased a 2024 Mazda Mazda3. The contact stated that while driving at 55–60 mph, the windshield wipers continued to stay in the on position and failed to turn off. The parking brake engaged without application and turned on and off. All the electrical systems malfunctioned and failed to turn off. The lane assist engaged and forced the vehicle to crash into the side wall. All the instrument cluster warning lights were illuminated. There were no reported injuries. There was no police report filed. There was no air bag deployment or fire. The vehicle was taken to the local dealer, wher
left-most lane of a three-lane highway, I pressed the accelerator to maintain the flow of traffic. The vehicle suddenly began revving between 4,000–5,000 RPM without increasing speed. When I attempted to accelerate again, the RPM remained around 3,000, and I immediately received multiple warning messages on the dashboard, including: “Skyactiv Partially Disabled” warning Engine Malfunction warning ATF (Automatic Transmission Fluid) warning light Simultaneously, the vehicle rapidly decelerated from 65 MPH to approximately 55 MPH, creating an extremely hazardous situation and nearly resulting
Car gives me emergency brake warnings about imminent collision maybe once or twice a week with nothing in front of me what so ever and once even straight up just brought me to a complete halt in the middle of the road with absolutely nothing in the road. The dealership basically told me it was a known issue and that “some models are more sensitive than others” and that they will be doing nothing about it. Different models of Mazda 3s from the same year are currently being investigated for the same recalls. This definitely needs to be addressed before I get into an accident.
FRONT AND REAR WINDSHIELDS GET EXCESSIVE CONDENSATION ON THE INSIDE OF WINDOWS OBSTRUCTIING VISIBILITY. CAR TAKEN TO DEALER AND THEY COULD NOT REPRODUCE THE SAME SITUATION. THIS PUTS OTHERS AT RISK BECAUSE THE DEFROSTER DOES NOT WORK WELL WHEN THERE IS HEAVY CONDENSATION ON THE INSIDE OF THE WINDOWS. THIS ISSUE HAS OCCURED SEVERAL TIMES SINCE PURCHASE IN 2024.
215/45R18 89V I bought a new 2024 Mazda 3 sedan Sport for my senior college son on [XXX] in Rockville, Maryland. In the evening of [XXX], during our attending my son's graduation in Nashville, Tennessee, on the highway to hotel, the front right tire was suddenly blowed out (air leaking quickly and completely). There was nothing on the highway, no object and no pothole. The cars in the front of us were just fine. My son only drove several thousand miles. We were very scared and our safety was threatened. My insurance Geico helped us to replace it with spare tire. We went to a local tire store
See attached document for complaint.
My Mazda3, odometer reading about 3000 miles, would not start. I have been driving normally daily, do not leave lights on or any other equipment connected when the car is off. I have not had any warning lights displayed other than startup. Monday I drove to my local CT. golf course, 20 miles from home, arrived at 9am. 5 hours later I after golf, I can’t open trunk. Fortunately I left the car unlocked. The car would not start. Road Service tried to jump battery unsuccessfully. Dragged the car onto truck-bed and transports to dealer. Service tech contacts me next day … charged battery, checked
Showing the 8 most serious of 10 complaints filed with NHTSA.
