Mazda CX-3
2021 Mazda CX-3 Owner's Manual
Your comprehensive guide to operating and maintaining your vehicle.
Introduction
This owner's manual contains important information regarding the safe operation, maintenance, and care of your 2021 Mazda CX-3. Please read this manual carefully to ensure proper use and to maximize the lifespan of your vehicle. Keep this manual in your vehicle for future reference.

The image displays the official 2021 Mazda CX-3 Owner's Manual, a black pouch with the Mazda logo, and a separate Warranty Information booklet. These items are typically provided with the vehicle at the time of purchase.
Setup and Initial Familiarization
Before operating your Mazda CX-3, familiarize yourself with its basic components and controls.
Key and Remote Control
Your vehicle comes with a smart key system. To unlock the doors, press the unlock button on the remote. To lock, press the lock button. The key can also be used manually in case of battery depletion.
Seat Adjustment
Adjust the driver's seat for optimal comfort and visibility. Locate the levers or buttons on the side of the seat to adjust forward/backward position, seatback recline, and height.
Steering Wheel Adjustment
The steering wheel can be adjusted for tilt and telescope. Pull the lever located under the steering column to unlock, adjust to your desired position, and then push the lever back to lock.
Operating Your Mazda CX-3
Starting the Engine
- Ensure the vehicle is in Park (P) or Neutral (N).
- Press the brake pedal firmly.
- Press the Engine Start/Stop button.
Driving Controls
- Gear Selector: Move the lever to select Drive (D), Reverse (R), Park (P), or Neutral (N).
- Turn Signals: Push the lever up for a right turn, down for a left turn.
- Wipers: Rotate the stalk to control wiper speed and mist function.
- Headlights: Rotate the stalk to turn on headlights, parking lights, or automatic lights.
Maintenance Schedule
Regular maintenance is crucial for the longevity and performance of your Mazda CX-3. Refer to the detailed maintenance schedule in your official manual for specific intervals.
Routine Checks (Monthly or Before Long Trips)
- Engine Oil Level: Check when the engine is cold and on level ground.
- Brake Fluid Level: Ensure it is between MIN and MAX marks.
- Coolant Level: Check the reservoir when the engine is cold.
- Tire Pressure: Maintain recommended pressure as indicated on the driver's side door jamb.
- Wiper Blades: Inspect for cracks or wear.
Scheduled Service (Every 5,000-7,500 miles or 6 months, whichever comes first)
- Oil and filter change.
- Tire rotation.
- Brake inspection.
- Multi-point inspection of various components.
Troubleshooting Common Issues
This section addresses common issues you might encounter with your Mazda CX-3.
Warning Lights
- Check Engine Light: If illuminated, it indicates a potential issue with the engine or emissions system. Consult a qualified technician.
- Low Tire Pressure Warning: Indicates one or more tires are significantly underinflated. Check tire pressures and inflate to recommended levels.
- Oil Pressure Warning: If this light comes on while driving, pull over safely and turn off the engine immediately. Do not drive the vehicle.
Engine Not Starting
- Check if the gear selector is in Park (P) or Neutral (N).
- Ensure the brake pedal is fully depressed.
- Verify the battery terminals are clean and tight. A weak battery may require a jump start.
Specifications
Key specifications for the 2021 Mazda CX-3 (may vary by trim level and region).
| Category | Specification |
|---|---|
| Engine Type | SKYACTIV-G 2.0L DOHC 16-valve 4-cylinder |
| Horsepower | 148 hp @ 6,000 rpm |
| Torque | 146 lb-ft @ 2,800 rpm |
| Transmission | SKYACTIV-Drive 6-speed automatic |
| Fuel Tank Capacity | 11.9 gallons (FWD) / 12.7 gallons (AWD) |
| Seating Capacity | 5 |
Warranty Information
Your 2021 Mazda CX-3 is covered by a comprehensive warranty. Please refer to the separate "Warranty Information" booklet provided with your vehicle for full details on coverage, terms, and conditions.
- New Vehicle Limited Warranty: Covers defects in materials and workmanship.
- Powertrain Limited Warranty: Covers major powertrain components.
- Roadside Assistance: Details on how to access roadside assistance services.
It is important to adhere to the recommended maintenance schedule to keep your warranty valid.
Customer Support
For further assistance or inquiries regarding your Mazda CX-3, please contact Mazda Customer Service or visit your authorized Mazda dealership.
- Mazda USA Customer Experience: Visit Website
- Find a Dealer: Locate Nearest Dealership
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