2019 Mazda CX-5 fuel/propulsion system problems
15 owner complaints filed with NHTSA name the fuel/propulsion system on the 2019 Mazda CX-5 — 6% of all complaints for this model year.
What owners report
“My 2019 Mazda CX-5 (equipped with the 2.5L naturally aspirated SkyActiv-G engine with cylinder deactivation) has experienced a severe structural failure resulting in a cracked engine cylinder head. This casting defect allows pressurized motor oil to leak continuously from the cylinder head down…”
filed Jun 3, 2026
“My car has an issue officially diagnosed by a reputable mechanic that matches the claim of the former TSB SA-058/20 that was changed and clarified through the now existing TSB SA-031/21. My car has a cracked cylinder head. This is the non turbo engine but it does have cylinder deactivation which…”
filed May 8, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This 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 tapping or knocking noise coming from the…
SA-023-26 · Service Bulletin/Repair Instructions · issued Apr 11, 2026
Fuel/propulsion System problems in other CX-5 years
| Year | Reports | Share |
|---|---|---|
| 2025 CX-5 | 2 | 8% |
| 2024 CX-5 | 1 | 2% |
| 2023 CX-5 | 2 | 3% |
| 2022 CX-5 | 3 | 5% |
| 2021 CX-5 | 7 | 5% |
| 2020 CX-5 | 4 | 4% |
| 2018 CX-5 | 20 | 6% |
| 2017 CX-5 | 13 | 9% |
| 2016 CX-5 | 19 | 4% |
| 2015 CX-5 | 5 | 4% |
| 2014 CX-5 | 6 | 2% |
| 2013 CX-5 | 9 | 5% |
Other reported problem areas on the 2019 Mazda CX-5
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.