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2018 Mazda CX-5

Owner reports · Recalls · Investigations

More warning signs than most CX-5 years

Owner complaints for the 2018 Mazda CX-5 are substantially higher than the model-year median of 133.

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When problems were reported

Mileage at the reported incident

Limited mileage data: 83 of 348 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 177 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 41 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 32 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

19 crash reports1 fire reports6 injury reports

What owners actually said

348 reports
Mileage unknown · Apr 25, 2023
Engine

Crack in cylinder head at 25k caused oil to leak and engine to smoke while driving. No warning lights came on. Dealership replaced the part but how do I know it won't happen again? Mazda knows about this but has not issued a recall or extended the powertrain warranty to cover this known manufacturing defect.

NHTSA ODI #11518839

Mileage unknown · Apr 21, 2023
Electrical System

Computer malfunction has been inspected by dealship

NHTSA ODI #11518281

40,000 miles · Apr 21, 2023
Latches/locks/linkages

The contact owns a 2018 Mazda CX-5. The contact stated that after she drove her four-year-old grandson to school, she parked and turned off the vehicle; however, she left the key on the inside of the vehicle and exited the vehicle to remove her grandson from the rear seat however, the doors inadvertently locked while her grandso…

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The contact owns a 2018 Mazda CX-5. The contact stated that after she drove her four-year-old grandson to school, she parked and turned off the vehicle; however, she left the key on the inside of the vehicle and exited the vehicle to remove her grandson from the rear seat however, the doors inadvertently locked while her grandson was inside. The contact stated that she was unable to unlock the doors as the vehicle was designed to remain unlocked while the key was inside of the vehicle. The Police Department was notified of the issue; however, while the Police Officers were approaching, her grandson was able to remove himself from the safety seat and unlock the door manually. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and the contact was advised to schedule an appointment. The failure mileage was approximately 40,000. The VIN was unavailable.

NHTSA ODI #11518232

Mileage unknown · Apr 17, 2023
Unknown Or Other

Sunroof suddenly exploded on the highway for no reason

NHTSA ODI #11517512

Mileage unknown · Mar 29, 2023
Engine

Oil drained to warning level from full during a vacation. The oil leaked out around head gasket level onto every part of the engine below it and the movement of air caused oil droplets to fall on the exhaust and smoke and also coated entire underneath and most of rear hatch with oil droplets.

NHTSA ODI #11514516

Mileage unknown · Mar 28, 2023
Engine

2018 Mazda CX-5. While driving a burning smell was detected (oil). Oil leakage noticed when car parked. The vehicle was taken to the dealer where it was diagnosed with a cracked cylinder head. There is a service bulletin stating defect in engine head. Mazda will not cover costs, as its outside 60,000 mile warranty. Quote give…

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2018 Mazda CX-5. While driving a burning smell was detected (oil). Oil leakage noticed when car parked. The vehicle was taken to the dealer where it was diagnosed with a cracked cylinder head. There is a service bulletin stating defect in engine head. Mazda will not cover costs, as its outside 60,000 mile warranty. Quote given of $4085 to fix issue. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 85000.

NHTSA ODI #11514337

Mileage unknown · Mar 17, 2023
Engine

After driving when I got off my car, I could smell something burned. I took my car a dealer shop, and they found the Crack in a cylinder head. The cylinder head has been fixed, but I can still smell something is burning.. I am not sure it is totally fixed or not.

NHTSA ODI #11512300

Mileage unknown · Mar 1, 2023
Electrical SystemEngine

2023 02 28, 36410 miles - Engine oil burning smell entering the cabin of the car, oil leaking from engine. No warning lights. Diagnosed by Mazda dealer as a cracked cylinder head, will be repaired under warranty. Discovered Service Alert #SA-013/22 that applies to this defect. 2023 02 23, 36,389 miles - Car in for an oil change…

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2023 02 28, 36410 miles - Engine oil burning smell entering the cabin of the car, oil leaking from engine. No warning lights. Diagnosed by Mazda dealer as a cracked cylinder head, will be repaired under warranty. Discovered Service Alert #SA-013/22 that applies to this defect. 2023 02 23, 36,389 miles - Car in for an oil change under extended service program at Mazda dealer. Dealer discovered the timing chain cover leaking, repaired under warranty. Owner also reported that information screen has been malfunctioning intermittantly. Dealer remarked that the screen does have problems, but that it is not covered by the warranty, and would need to be replaced within the next two years and would cost about $2000. Upon vehicle pick-up, several warning lights went on, dealer reprogrammed the code system, test drove, pronounced the lights indicated nothing was wrong. 2022 08 17, 31,174 miles - Fuel pump replaced under recall while car in for regular oil change covered by service contract. 2021 02 04, 17,629 miles - Timing chain cover leaking, discovered by dealer while in for regular oil change, repaired under warranty.

NHTSA ODI #11509698

Mileage unknown · Feb 26, 2023
Forward Collision AvoidanceUnknown Or Other

When I drive 100 to 150 fest the front camera blocked warning light come on. The only way to reset is to stop turn of car and restart, only to have it happen again and again. The main thing is when and if I can get into cruise control and I am on a major highway and have the cruise set unannounced the warning comes on and turns …

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When I drive 100 to 150 fest the front camera blocked warning light come on. The only way to reset is to stop turn of car and restart, only to have it happen again and again. The main thing is when and if I can get into cruise control and I am on a major highway and have the cruise set unannounced the warning comes on and turns off the cruise control. If there is someone close they run up on me. I have had it back to the dealer and have called Mazda, all they said was maybe the sun was setting it off, I guess I can only drive at night. The dealer had the car for over 2 weeks and did not fix it. I have recently discovered that if I keep the cruise control on it will not do it, it is very frustrating and now it is off warranty.

NHTSA ODI #11509157

Mileage unknown · Feb 1, 2023
Exterior Lighting

When driving at night or in diminished lighting, the headlights will turn on but the taillights do not. The taillights will only activate if the headlight switch is moved to the on position. When the headlights activate, it gives the driver the appearance of everything is operating as designed when in fact there are no taillight…

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When driving at night or in diminished lighting, the headlights will turn on but the taillights do not. The taillights will only activate if the headlight switch is moved to the on position. When the headlights activate, it gives the driver the appearance of everything is operating as designed when in fact there are no taillights illuminated.

NHTSA ODI #11504873

Official recalls

3

21V875000 · Fuel System, Gasoline:delivery:fuel Pump

Nov 12, 2021

Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.

Consequence & remedy

Consequence: Fuel pump failure may cause an engine stall, increasing the risk of a crash.

Remedy: Dealers will replace the fuel pumps, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 5321K.

19V497000 · Engine; Power Train:automatic Transmission:control Module (tcm/pcm/tecm)

Jun 27, 2019

Mazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.

Consequence & remedy

Consequence: An unexpected stall increases the risk of a crash.

Remedy: Mazda will notify owners, and dealers will reprogram the PCM software, free of charge. The recall began August 20, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 3719F.

Additional source detail variants (2)

Engine

Mazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.

Consequence: An unexpected stall increases the risk of a crash.

Remedy: Mazda will notify owners, and dealers will reprogram the PCM software, free of charge. The recall began August 20, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 3719F.

Power Train:automatic Transmission:control Module (tcm/pcm/tecm)

Mazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.

Consequence: An unexpected stall increases the risk of a crash.

Remedy: Mazda will notify owners, and dealers will reprogram the PCM software, free of charge. The recall began August 20, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 3719F.

18V426000 · Air Bags:side/window

Jun 25, 2018

Mazda North American Operations (Mazda) is recalling certain 2018 Mazda CX-5 vehicles. In the event of a side impact or rollover crash, the side curtain air bags may not properly unfold during deployment. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 226, "Ejection Mitigation."

Consequence & remedy

Consequence: If the air bags do not deploy properly in a crash, it can increase the risk of injury.

Remedy: Mazda will notify owners, and dealers will replace the curtain air bags, free of charge. The recall began July 31, 2018. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 2718F.

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

0

No exact-year investigations in this snapshot.

Go deeper into Mazda CX-5 problems