2018 Mazda CX-3 problems
Light NHTSA footprint — 10 owner complaints. Either a clean record or thin data; we'll show what's there.
The 2018 Mazda CX-3 has 10 NHTSA owner complaints on file (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2016 CX-3 | 48 | 0 |
| 2017 CX-3 | 21 | 0 |
| 2018 CX-3 (this page) | 10 | 0 |
| 2019 CX-3 | 26 | 0 |
| 2020 CX-3 | 1 | 0 |
| 2021 CX-3 | 3 | 1 |
Above-average reliability for the segment. Few systemic issues on file.
Buyable on the data — keep up the usual maintenance and inspect normally.
- No systemic severe-failure pattern in the complaint record
- Reliability score 8.8/10 — above the segment average
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.
Ask anything about your 2018 Mazda CX-3
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.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
What owners are saying recent NHTSA-filed complaints · verbatim
I was sold a vehicle with "new" tires. I've only had the vehicle about 6 months and found out the tires were made in 2011 and starting to deteriorate so I had to buy actual new tires. I did not have an accident but feel there could have been a tire blowout. Luckily I had run…
While I was parking my car and braking the throttle opened wide and I jumped the curb. I reapplied the brakes hard and the car came to a stop after skidding 4 feet. (tire marks measured). I had the car towed to the dealer where they could find nothing wrong. In researching…
I was in a parking ramp, I rounded the corner going up and was pulling into a parking spot, my foot was on the break, and the car accelerated. I lurched forward into a wall of the ramp. It wasn't raining so pavement and ramp were not wet. The dealer has looked at the car, said…
Fuel injector failed without warning. A lot of fuel leaked into the engine destroying a spark plug in one cylinder and ultimately ruining the catalytic converter when fuel got into it. Independent mechanic and Mazda dealership diagnosed. Car cannot be driven.
Common questions
Is the 2018 Mazda CX-3 reliable?
Mostly yes. With a reliability score of 8.8 out of 10 based on 10 owner complaints filed with NHTSA, the 2018 Mazda CX-3 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 2018 Mazda CX-3?
On the NHTSA data, the 2018 Mazda CX-3 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 8.8/10 — above the segment average. 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 2018 Mazda CX-3?
There isn't enough NHTSA complaint data on the 2018 Mazda CX-3 to flag a standout failure pattern. Run the VIN for open recalls — those are free to fix regardless of warranty — get a standard pre-purchase inspection, and ask the seller for service records.
Is the 2018 Mazda CX-3 a good used car to buy?
It scores 8.8 out of 10 on our NHTSA-based read of 10 owner complaints. 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 2018 Mazda CX-3?
No problem area has crossed our reporting threshold yet, which is a good sign for this vehicle.
What's the most expensive thing that goes wrong?
Major repair items haven't been flagged often enough on this vehicle to single one out.
How do I check if my Mazda CX-3 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 2018 Mazda CX-3?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 10 complaints on file, 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.