2021 Mazda CX-5 Engine Problems
- Complaints
- 80about this part
- Share
- 54%of 148 total for the year
- Median mileage
- 46,465miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 80 complaints about the engine of the 2021 Mazda CX-5, 54% of the 148 complaints for this model year. Where a mileage was given, the median is 46,465 miles. 1 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My car appears to consuming oil excessively. I bought this car new in March of 2021 at I have had to top off my oil between oil changes at almost every single oil change since I have owned it. The car only has 33900 miles on it and usually about two months in from my oil change the check oil light comes on and the dipstick shows the oil at the lower end of the dipstick. I have purchased oil on my own and have had to have the dealer top it off. …”
NHTSA complaint #11489086, filed 2022-10, 33,900 miles“Check engine oil light came on after only 2K miles from last oil change. Upon inspection there was practically no oil in my engine!!! I see there is an ongoing issue since 10/21 with 2021 Mazda CX-5 turbo engines. Despite Mazda’s awareness of the problem, they have yet to issue a recall to fix this issue!!!”
NHTSA complaint #11628165, filed 2024-12“oil consumption on a 2021 Turbo CX-5. problem has been reproduced and confirmed by dealer. warning lights twice. first time told it was normal. happened twice. only on my third maintenance oil change was it acknowledged. had to do a lot of research on my own. caused enormous stress to existing mental health issues. would not have even been addressed had i not stated the issue.”
NHTSA complaint #11500032, filed 2023-01“My check oil light has come on 3 times in between my first and 2nd oil changes. Added a total of 1 1/2 quarts between the 3 oil changes. Made the dealership aware of this last week at 2nd oil change. They’ve begun to monitor my mileage with my oil consumption and I’ll go in every 500 miles so they can document.”
NHTSA complaint #11477960, filed 2022-08“2021 Mazda CX-5 2.5L non-turbo. While driving at approximately 8 mph, I removed my foot from the accelerator, but the vehicle unexpectedly accelerated on its own. I did not press the accelerator pedal. I had to apply the brake to slow the vehicle down. This issue has occurred three separate times, on August 25, September 4, and September 18, 2026, at approximately 70,060 miles. The same unintended acceleration behavior occurred during all three incidents.”
NHTSA complaint #11765445, filed 2026-09Related service bulletins
- 11037018Sep 4, 2026This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 06/15/26 DESCRIPTION Some customers may complain…
- 11036688Aug 10, 2026This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 01-012/22 10/06/22 DESCRIPTION Some vehicles may exhibit accumulation…
- 11034448Jul 1, 2026This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-017/25 12/16/25, 09/08/25, 07/14/25, 05/15/25 and 03/21/25 DESCRIPTION…
- 11034447Jun 19, 2026This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g…
- 11034436Jun 18, 2026This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-012/21 12/13/21, 06/10/21 and 04/27/21 DESCRIPTION Some customers may…
- 11032106Apr 29, 2026Valve Stem Seals Class Action Settlement Program for Excessive Oil Consumption and Oil Consumption Powertrain Warranty Extension Special Service Program SSPD5. Updated April 28…
- 11032103Apr 21, 2026This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory…
- 11032101Apr 16, 2026This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-002/19 09/30/19 and 12/19/19 DESCRIPTION If an engine assembly is…
- 11030636Mar 11, 2026This Service Alert supersedes the previously issued SA(s) and TSB(s) listed below: The changes are noted in Red. SA-035/24 05/31/24 DESCRIPTION There is a concern that some water…
- 11030701Mar 5, 2026Subject: TSB 01-001/26 Warranty and Parts Kit Update INCLUDES: Warranty Extension Program - Special Service Program (SSP) D8 Check Engine Light ON with DTC P0126:00, 2018-2025…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 7 | 24% |
| 2024 | 7 | 15% |
| 2023 | 10 | 15% |
| 2022 | 13 | 20% |
| 2021 | 80 | 54% |
| 2020 | 17 | 16% |
| 2019 | 132 | 49% |
| 2018 | 180 | 51% |
| 2017 | 16 | 11% |
| 2016 | 39 | 8% |
| 2015 | 14 | 11% |
| 2014 | 39 | 10% |
| 2013 | 42 | 22% |
Other parts of the 2021 Mazda CX-5
18 complaintsTransmission and drivetrain
17 complaintsElectrical system
12 complaintsBrakes
11 complaintsForward collision avoidance
11 complaintsFuel system
8 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