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ProblemsByVinFile / 2020-MAZDA-MAZDA3NHTSA data synced 1 day ago
Mazda
2020 Mazda Mazda3 problems
Light NHTSA footprint — 32 owner complaints and 2 active recall campaigns. Either a clean record or thin data; we'll show what's there.
The 2020 Mazda Mazda3 has 32 NHTSA owner complaints and 2 recalls on file (U.S. federal records, as of August 2026). The most-reported system is brakes at 3 complaints, typically surfacing around 5,853 miles (~$450 to repair). Source: NHTSA Office of Defects Investigation.
Solid reliability overall. Common issues are concentrated in a few systems.
0
Critical
2
Severe
0
Moderate
Should you avoid this 2020 Mazda3?
Generally reliable
Buyable on the data — keep up the usual maintenance and inspect normally.
No systemic severe-failure pattern in the complaint record
Reliability score 8.0/10 — above the segment average
2 recall campaigns on file
Our read of the federal NHTSA complaint and recall record for this exact year and model —
not a substitute for a pre-purchase inspection. How we score.
Buying a used 2020 Mazda Mazda3? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or
make the seller fix it before you sign.
What to inspect on this specific car
brakes — 3 owner reports
· tends to show around 5,853 mi · ~$450 to fix
electrical — 3 owner reports
· ~$850 to fix
steering — 3 owner reports
· tends to show around 1,177 mi · ~$700 to fix
Recalls to confirm are done
Run the VIN from the listing — 2 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 8.0/10 model. The priciest documented failure is
electrical (~$850) — get the
seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report
tells you what this exact car has been through. Smart buyers get both.
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in
this vehicle's actual NHTSA record, not generic advice.
Dash light, leak, worn part — snap it and we'll read it against this car's record.
Photo attached — type a question or just hit Ask.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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What owners are saying
recent NHTSA-filed complaints · verbatim
2020 Mazda3· electrical
El vehiculo tiene problemas de encendido, despues de estar en reposo dos dias no enciende se tiene que pasar corriente, inclusive en manejos cortos al volver a encender el vehiculo presenta el mismo problema, este es un problema en la mayoria de este tipo de vehiculos, mismos…
I pulled into the driveway (at about 5 mph) of my passenger's home, when a very loud, metallic pop occurred somewhere inside my vehicle. I could not discern the problem by visually inspecting the car. Upon returning to my home, I arranged for the dealership to inspect the…
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…
Had a problem with your 2020 Mazda Mazda3?
File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles
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.
Fix: 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.
Mazda North American Operations (Mazda) is recalling certain 2019-2020 Mazda3 vehicles
Stopping the vehicle unexpectedly increases the risk of a crash.
Fix: 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.
Common questions
Is the 2020 Mazda Mazda3 reliable?
Mostly yes. With a reliability score of 8.0 out of 10 based on 32 owner complaints filed with NHTSA, the 2020 Mazda Mazda3 is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2020 Mazda Mazda3?
On the NHTSA data, the 2020 Mazda Mazda3 does not need avoiding. Buyable on the data — keep up the usual maintenance and inspect normally. The record behind that call: No systemic severe-failure pattern in the complaint record; Reliability score 8.0/10 — above the segment average; 2 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2020 Mazda Mazda3?
Inspect the brakes first — it's the most-reported issue on this model, with 3 owner complaints filed. Typical failure occurs around 5,853 miles. Average repair cost runs about $450 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2020 Mazda Mazda3 a good used car to buy?
It scores 8.0 out of 10 on our NHTSA-based read of 32 owner complaints. The main thing to watch is brakes. Typical failure occurs around 5,853 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2020 Mazda Mazda3?
Based on NHTSA records, the most-reported issue is brakes, with 3 complaints filed. Typical failure occurs around 5,853 miles. Average repair cost runs about $450 at an independent shop.
What's the most expensive thing that goes wrong?
The brakes is one of the costlier repair items. Average repair cost runs about $450 at an independent shop. Typical failure occurs around 5,853 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Mazda Mazda3 has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2020 Mazda Mazda3?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 32 complaints on file and the costliest repair averaging $450, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.
Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database, last synced 1 day ago. Verify the raw federal record at
nhtsa.gov/vehicle/2020/Mazda/Mazda3.
Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics.
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