2021 Mazda CX-5 Fuel system Problems
- Complaints
- 8about this part
- Share
- 5%of 148 total for the year
- Median mileage
- 1,629miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the fuel system of the 2021 Mazda CX-5, 5% of the 148 complaints for this model year. Where a mileage was given, the median is 1,629 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While beginning to turn into an interstate exit lane, all dashboard lights lit up, the engine died, and the car stopped. Power brakes & steering were inactivated. My husband was able to coast the car to the shoulder. My Mazda app said nothing wrong with car. Waited 3 hours for tow as we were out of state. The Mazda dealership found the high pressure fuel pump to have a malfunction. Two different technicians at the dealership related that Mazda was aware of the issue & had not yet issued a recalled.”
NHTSA complaint #11475541, filed 2022-07“I am having 2021 cx5 signature turbo 3400 mile and the engine light can me on upon checking the oil level was to low mark burnt out . I am concern that Mazda have not came up. With a recall yet.”
NHTSA complaint #11488856, filed 2022-10“When the cylinder deactivation system triggers It causes the engine/car to shake and stutter. Somtimes it's suttle and other times if feels like the car is going to stall out. It's a vibration that makes it feel like your driving over cobblestones. This has been ongoing for a few months now. I'm taking it to the dealer tomorrow. It appears to be the same problem as the 2018-2019 Recall.”
NHTSA complaint #11449830, filed 2022-02“Excessive combustible gasoline vapors in engine compartment and in passenger compartment. Engine, available for inspection. Risk of fire/explosion because of high concentration of combustible vapors/gasoline. Yes -- confirmed by dealer (Safford Brown Mazda of Fairfax (Virginia)). No -- Notwithstanding being apprised of the problem Manufacturer has not inspected No warning signs. Manufacturer has acknowledge gasoline leaking into engine oil. Vapors were exacerbated because of a failed oil enging filler cap (probably cracked), and replacement of the same.”
NHTSA complaint #11592447, filed 2024-06Related service bulletins
- 11032019Apr 11, 2026This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-003/22 03/02/22 DESCRIPTION Some customers may complain about a…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 3 | 10% |
| 2024 | 1 | 2% |
| 2023 | 2 | 3% |
| 2022 | 4 | 6% |
| 2021 | 8 | 5% |
| 2020 | 4 | 4% |
| 2019 | 21 | 8% |
| 2018 | 39 | 11% |
| 2017 | 16 | 11% |
| 2016 | 20 | 4% |
| 2015 | 7 | 5% |
| 2014 | 7 | 2% |
| 2013 | 10 | 5% |
Other parts of the 2021 Mazda CX-5
80 complaintsOther or unknown
18 complaintsTransmission and drivetrain
17 complaintsElectrical system
12 complaintsBrakes
11 complaintsForward collision avoidance
11 complaintsVehicle speed control
8 complaintsLane departure
7 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsAir bags
5 complaintsTires
3 complaintsBack-over prevention (rear camera)
2 complaints
← All problems reported for the 2021 Mazda CX-5
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology