Car stalls and 3 warning lights flash on the dashboard- “front radar sensor system malfunction”, “forward smart city brake support malfunction”, “smart brake system malfunction” and check engine light turns on. Car still drives but gas pedal and brake pedal don’t seem to work as well. Have to pull over, turn engine off and restart. Check engine light still on but other warning lights disappear. Check engine light turns off overnight. Has happened twice in the last month. Concerned about safety as gas and brake pedals seem off until turning the engine off and on again. Concerned about brakes failing. When brought to dealership, warning lights had all turned off and dealership found nothing wrong with car.
Mazda CX-5 check engine light comes on
154 of the 2,482 owner complaints about the Mazda CX-5 describe check engine light, most of them for the 2013 model year.
- owner complaints
- 154
- worst model year
- 2013
- typical repair cost reported
- $1,768
- typical mileage
- 37,000
Is there a fix? No recall or service bulletin covers this area of the car yet.
By model year
Often reported together
Stalling 28Loss of power 23Warning lights 17Fuel pump 17Engine failure 10Fire or smoke 8Misfire 7Jerking 7
Trouble codes mentioned
P0192 7P0126 4P0171 3P011A 3P0301 2U0121 1P250F 1P1738 1P111A 1P0882 1
What owners say
2025 Mazda CX-5. The vehicle experienced a severe, dynamic charging system failure that creates an active safety hazard on public roads. A dealership service department attempted a software update, which turned off the active dashboard layout indicator but completely failed to resolve the root hardware issue. The system failure remains active and has thrown consecutive advanced safety system faults. VEHICLE DIAGNOSTIC TIMELINE & BRIEF •Vehicle: 2025 Mazda CX-5 •Warranty Status: Active (Under Bumper-to-Bumper New-Vehicle Limited Warranty) •Modifications: None (100% Factory Standard; No aftermarket accessories) On the evening of [XXX], while preparing to leave on a cross-country trip, the car would not start. It was originally believed it was because while loading the car we left one of the key fobs in the car and tried to lock the doors. We reset the fob and tried the manual override to get the car to start with no luck. There were several warning lights coming up on dash to include an istop warning. Unfortunately, I didn't take pictures of the original incident. We contacted AAA and they came and jump started the car. We left on our trip the morning of [XXX]. The car started with no issue. That afternoon as we were driving through a small town, we stopped at a traffic light and received the "Battery Malfunction" warring light. We headed to Auto Zone, they checked the battery and said it had low charge, even though we had just driven the car over 400 miles. We parked the car at the hotel fulling expect to have to call AAA again but the next morning the car started without a problem. On [XXX], we continued our trip. When we stopped for gas that afternoon the car would not start. We again had to jump it. When we left the gas station the check engine light came on (amber). We were close to Wichita Falls, TX so we stopped for the day and made an appointment with the dealership there for the nINFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
2018 Mazda CX-5 2.5L NA Engine Cracked cylinder head and blown head gasket with leaking oil onto exhaust manifold resulting in white smoke & burning oil smell. No engine light. Issue confirmed by dealer and independent shop. Commonly reported issue amongst 2018-2021 Mazda CX-5 owners either naturally aspirated engines.
The contact owns a 2021 Mazda CX-5. The contact stated that while driving 50 MPH and the check engine warning light illuminated. The contact took the vehicle to an independent mechanic where an OBDII scanner discovered a misfire in cylinder#1. The vehicle was then taken to another independent mechanic where the OBDII scanner discovered a misfire in one of the engine cylinders and diagnosed the vehicle with an engine failure. The contact was then referred to the dealer who confirmed that there was a defect with cylinder#1. The dealer confirmed that the engine needed to be replaced. The manufacturer was then notified of the failure, and the contact was informed that there were no recalls on the vehicle and that the warranty had expired. The vehicle was taken to another independent mechanic and remained with the independent mechanic. The failure mileage was approximately 124,000.
Check engine light on when read it comes back with P0171 code
The vehicle experienced a sudden and complete engine stall while idling immediately after fueling the gas tank to capacity on a day with high ambient temperatures (over 100°F). Leading up to the stall, the vehicle was subjected to temporary auxiliary loads (Max AC running and active steering input). Immediately following the stall, the vehicle exhibited a hard-start condition and would not catch fire. After sitting turned off for several minutes, the vehicle restarted normally. The incident left no Diagnostic Trouble Codes (DTCs) or Check Engine Lights. Independent of this event, the vehicle intermittently exhibits a raw gasoline vapor smell inside the cabin at idle, alongside slight hesitations during low-speed steering maneuvers. This presents a safety hazard due to unexpected loss of motive power immediately after refueling in high-traffic gas station environments.
Check Engine Light Code P0524 - Low Oil Pressure. Everything check out fine. Checked all the suggested TSB (Technical Service Bulletin) possibilities from a respected and qualified service center. Cleared the code and it keeps coming back on.
Cylinder block cracked on back side of engine. This crack leaks oil onto the exhaust manifold. Condition Confirmed by Mazda dealer. Oil burns on the exhaust filling the cabin with smoke impairing the driver. Also a high risk of combustion in the engine compartment Inspection report and pictures available. No sign or warning of issue. Crack happened on a daily drive to work. No engine lights noise or smell until head suddenly cracked causing a large oil leak. Mazda has an internal TSB 01-002/23 admitting that these cars in this year range have a manufacturer defect in the block
The contact owns a 2016 Mazda CX-5. The contact stated that the engine light illuminated. The vehicle was taken to an independent mechanic diagnosed with a sensor failure and needing to replace a catalytic converter. The oxygen sensors were repalced.r was replaced by an independent mechanic. The vehicle stalled while reversing. The manufacturer was not notified of the issue. The approximate failure mileage was 131,860.
The contact owns a 2024 Mazda CX-5. The contact stated while driving at 45 MPH, the check engine light illmiunated. The contact mention when depressing accelerator pedal, the RPM's get suck independently and the vehicle fails to respond as intended. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed, however the dignanoses was unknown. The vehicle was not repaired. The manufacturer was not notified on the failure. The approximate failure mileage was 39,381.
Related recalls
No recalls on record for this model year.
Questions about the Mazda CX-5 check engine light
Why does the check engine light come on in the Mazda CX-5?
Owners who report it most often also describe engine stalls while driving, sudden loss of power and multiple warning lights, and the codes they mention most are P0192, P0126 and P0171.
Which Mazda CX-5 years have check engine light problems?
The model years with the most reports are 2013 (31 complaints), 2018 (23 complaints) and 2019 (21 complaints).
How much does it cost to fix check engine light on the Mazda CX-5?
Owners who mentioned a price put the repair at about $1,768 (median of 14 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.
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