Oil light has come on indicating low oil. I have serviced this car through the dealership on schedule since I purchased it new. I don't believe modern cars should "lose oil" at less than 30,000 miles.
2021 Mazda CX-5
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2021 Mazda CX-5 do not stand out strongly from the model-year median of 133.
About this comparison →How this year compares
Owner complaints by model year
Compare all CX-5 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 18 of 144 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 77 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
144 reportsCylinder head crack. Oil leak.
Ever since the vehicle was bought brand new. It had oil consumption issues. I always had to top off engine oil every 3 to 4 thousand miles or so.
I thought this was for a mechanical issue (not a safety issue). Check engine light came on not blinking. Was code p0126 covered in bulletin 01-005/23 - Coolant Control Valve. I'm on the Facebook CX-5 page and I see that many people have had this issue. One person had the same problem twice on the same car. I would like very m…
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I thought this was for a mechanical issue (not a safety issue). Check engine light came on not blinking. Was code p0126 covered in bulletin 01-005/23 - Coolant Control Valve. I'm on the Facebook CX-5 page and I see that many people have had this issue. One person had the same problem twice on the same car. I would like very much to have the correct NHTSA link to report this problem so that others may report it as well. In my case check engine light came on far from home. A local dealer said it would be safe to drive home which I did (about 180 miles). But a problem that occurs many times on a given car model perhaps should be a recall. The only charge was about $75 from the garage who read the code and diagnosed the problem. It was covered under warranty so there was no further charge to me.
-My rear differential needs replaced with just 24,000 miles on the car. I have the video from the technician at the Mazda dealership if needed. -My safety was not at risk because I took the car in at the first sign of issue. -Mazda Dealer technician has confirmed problem. -Mazda has been contacted to approve the part/fix since …
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-My rear differential needs replaced with just 24,000 miles on the car. I have the video from the technician at the Mazda dealership if needed. -My safety was not at risk because I took the car in at the first sign of issue. -Mazda Dealer technician has confirmed problem. -Mazda has been contacted to approve the part/fix since it is still under warranty. -No warning lamps appeared. I noticed a noise that was not something I had heard/noticed before. -I have searched many forums and this is a known/common issue with this make/model.
I had driven about 10 miles when the Check Engine light came on when I was far from home. Not blinking. It was not on when I first turned the car on. No symptoms other than check engine light. Got to a garage who got a code p0126 that is covered under TSB 01-005/23 coolant control valve. Called dealer who said it would be s…
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I had driven about 10 miles when the Check Engine light came on when I was far from home. Not blinking. It was not on when I first turned the car on. No symptoms other than check engine light. Got to a garage who got a code p0126 that is covered under TSB 01-005/23 coolant control valve. Called dealer who said it would be safe to drive home 180 miles. I did that. Awaiting appointment tomorrow to get it fixed. I belong to a Mazda Facebook group where lots of others are reporting this same problem - some for a second time!
At 15k mi the rear left wheel started to squeal. Took car to dealer, they claimed all brake pads on the car worn out and replaced all of them (front+back), paperwork is available. That's an indication of a design defect impacting the brake system, this is not acceptable. Next week I was driving in winter storm and at one point …
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At 15k mi the rear left wheel started to squeal. Took car to dealer, they claimed all brake pads on the car worn out and replaced all of them (front+back), paperwork is available. That's an indication of a design defect impacting the brake system, this is not acceptable. Next week I was driving in winter storm and at one point the car started shifting to the left. I managed to regain control, dashcam video is available. I used to have a 2016 CX-5 and it experienced exactly the same issue. At one point dealer wanted to change brake pads after just 6k mi, I replaced them myself and noticed that the pads were worn unevenly, but it was easier to get rid of the car back then. The number of reports similar to mine is overwhelming, it is sad to see NHTSA not taking any action on this life threatening ticking time bomb.
Screen blank when I am drving a while without any problem. I saw online and many owner have same problem. I followed company and online instruction. the problem could not be solved.
Excessive oil leak after 11,000 miles/car purchased new from dealer. There is currently a class action suit regarding this issue. Dealer denies problem, offering to top off oil only.
The contact owns a 2021 Mazda CX-5. The contact stated that upon starting the vehicle, the contact became aware that the vehicle was consuming an excessive amount of engine oil. The low oil warning light was illuminated. The vehicle was taken to a dealer to be diagnosed. The contact was made aware that the vehicle was leaking oi…
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The contact owns a 2021 Mazda CX-5. The contact stated that upon starting the vehicle, the contact became aware that the vehicle was consuming an excessive amount of engine oil. The low oil warning light was illuminated. The vehicle was taken to a dealer to be diagnosed. The contact was made aware that the vehicle was leaking oil. The vehicle was repaired however, the failure had recurred. The manufacturer was made aware of the failure and advised the contact to take the vehicle to the dealer for diagnostic tests. The failure mileage was approximately 57,000.
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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