IllustrationWATER COMING INTO CABIN FROM DRIVER DOOR WINDOW. BROUGHT IT TO MAZDA SERVICE CENTER THREE TIMES AND THEY CANNOT FIGURE OUT WHERE WATER IS COMING FROM. WATER POOLS IN THE DOOR WHEN IT RAINS AND SEEPS INTO THE CABIN.
2020 Mazda MAZDA3
Owner reports · Recalls · Investigations
Fewer warning signs than most model years
Owner complaints for the 2020 Mazda MAZDA3 are lower than the model-year median of 108.
About this comparison →How this year compares
Owner complaints by model year
Compare all MAZDA3 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 6 of 32 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Forward Collision Avoidance. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Steering. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
32 reportsMY NEW 2020 MAZDA 3 PREMIUM WITH 1,177 MILES SUDDENLY TOOK COMPLETE CONTROL OF STEERING MY CAR. DRIVING 65-70 MPH ON A 3 LANE STRAIGHT HIGHWAY ON A CLEAR DAY, WITH LIGHT TRAFFIC, I MOVED ONE LANE TO MY LEFT, AND THE CAR TOOK OVER THE STEERING, PULLING MY CAR OUT OF THE LEFT LANE NEARLY MISSING THE CENTER CEMENT DIVIDER, THEN DAR…
Read full complaint
MY NEW 2020 MAZDA 3 PREMIUM WITH 1,177 MILES SUDDENLY TOOK COMPLETE CONTROL OF STEERING MY CAR. DRIVING 65-70 MPH ON A 3 LANE STRAIGHT HIGHWAY ON A CLEAR DAY, WITH LIGHT TRAFFIC, I MOVED ONE LANE TO MY LEFT, AND THE CAR TOOK OVER THE STEERING, PULLING MY CAR OUT OF THE LEFT LANE NEARLY MISSING THE CENTER CEMENT DIVIDER, THEN DARTING BACK ACROSS MY LANE AND HALFWAY INTO THE LANE TO MY RIGHT,THEN DASHING BACK TO THE CEMENT MEDIAN. I AM UNAWARE OF HOW MANY TIMES THE BACK AND FORTH OCCURRED, I TRIED TO SLOW THE CAR DOWN TO NO AVAIL. THE CAR WAS MOVING FAST, AND THE PATTERN THE CAR MOVED IN WAS VERY PRECISE, AS IF THE CAR KNEW NOT TO HIT THE MEDIAN AND GO FURTHER INTO THE LANE TO MY RIGHT. FINALLY THE CAR STOPPED STEERING ITSELF, AND I WAS ABLE TO EXIT THE HIGHWAY. MY CAR WAS NOT DAMAGED. I HIT MY HEAD TWICE ON THE DRIVES SIDE DOOR. I DID NOT REQUIRE MEDICAL ASSISTANCE.
Official recalls
220V346000 · Service Brakes, Hydraulic:foundation Components:disc:caliper
Jun 12, 2020
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles. The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen.
Consequence & remedy
Consequence: Loose brake calipers can reduce braking performance or interfere with wheel rotation, affecting vehicle handling. Either of these scenarios can increase the risk of a crash.
Remedy: Mazda will notify owners, and dealers will inspect the front brake caliper bolts, tightening them as necessary. If bolts are missing, the affected brake caliper will be replaced. Repairs will be performed free of charge. The recall began July 24, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4420F.
19V907000 · Forward Collision Avoidance: Automatic Emergency Braking
Dec 19, 2019
Mazda North American Operations (Mazda) is recalling certain 2019-2020 Mazda3 vehicles. The Smart Brake System (SBS) can falsely detect an obstacle while driving, activating the automatic emergency braking system and suddenly stopping the vehicle.
Consequence & remedy
Consequence: Stopping the vehicle unexpectedly increases the risk of a crash.
Remedy: Mazda will notify owners, and dealers will update the SBS software. In addition, vehicles with certain production dates will receive an instrument cluster software update or replacement and a replacement owner's manual. These repairs will be performed free of charge. The recall began February 14, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4219L.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.