2020 Mazda CX-5 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 1%of 108 total for the year
- Median mileage
- 32,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2020 Mazda CX-5, 1% of the 108 complaints for this model year. Where a mileage was given, the median is 32,000 miles.
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.
“The contact owns a 2020 Mazda CX-5. The contact stated that while the cruise control was activated and driving 65 MPH in the middle lane of a busy six-lane highway, the contact depressed the accelerator pedal, and the vehicle was suddenly stalled and coasted to a complete stop in the middle of the highway. The contact was able to restart the vehicle to continue driving. The vehicle was later taken to the local dealer, who was unable to determine the cause of the failure and was unable to confirm that the failure had occurred. The vehicle was not repaired. …”
NHTSA complaint #11689633, filed 2025-09, 32,000 milesRelated service bulletins
- 10251387Feb 12, 2024Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as…
- 10248393Dec 20, 2023Some customers may experience the check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up…
- 10248392Dec 5, 2023There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service Alert is to inform…
- 10244679Oct 11, 2023If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10241612Aug 16, 2023A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve…
- 10241608Aug 1, 2023Some customers may complain about a surging at low speeds and during acceleration. This surging is in the longitudinal direction, felt about 2 cycles per second, and occurs in…
- 10238700Jun 6, 2023A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve…
- 10238695Jun 1, 2023Some customers may complain of a lack of power under heavy load without any warning lights or DTCs. This concern may be due to a loose or detached hood weatherstrip, which can…
- 10237216May 24, 2023If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10235413Apr 26, 2023Some vehicles may exhibit oil seepage or oil leak onto the engine front cover, which becomes more apparent with dust adhesion.
Engine cooling: other model years
Other parts of the 2020 Mazda CX-5
31 complaintsOther or unknown
25 complaintsEngine
17 complaintsBrakes
15 complaintsForward collision avoidance
12 complaintsTransmission and drivetrain
8 complaintsBody and structure
6 complaintsVehicle speed control
6 complaintsAir bags
5 complaintsBack-over prevention (rear camera)
4 complaintsExterior lighting
4 complaintsFuel system
4 complaints
← All problems reported for the 2020 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