2018 Mazda CX-5Problems: Top Complaints, Recalls & Failures (NHTSA)

Engine

• Cracked cylinder head- factory defect, causing oil to leak onto exhaust manifold. Smoke fills engine bay and cab through air vents, very high concern of engine bay fire. 2018 Mazda cx5 non turbo 2.5 s
• 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 de
• The contact owns a 2018 Mazda CX-5. The contact stated that while driving at various speeds, the vehicle was leaking engine oil, and there was white smoke coming from underneath the hood. The contact

Power Train

• There has been numerous report of the Mazda CX 5 having failure rear differential. I just purchased a 2018 Mazda CX five for my daughter in September 2026 I now am experiencing this issue on the rear
• My Mazda 2018, CX-5, Grand Touring, was diagnosed with a cracked cylinder head at 64,599 miles. This issue could posed a safety hazard for not only us but others on the road by: *Engine Failure / S
• Cylinder head suddenly cracked, causing heavy oil leakage onto hot exhaust manifold. Car started to smoke heavily. Vehicle turned off before potential engine fire.

Engine And Engine Cooling

• The contact owns a 2018 Mazda CX-5. The contact stated that while his wife was driving at an undisclosed speed, there was smoke coming from under the hood. No warning light was illuminated. The contac
• The contact owns a 2018 Mazda CX-5. The contact stated that while driving the vehicle he could smell a burning odor, and added that he noticed a puddle of oil on his driveway. The vehicle was taken to
• The contact owns a 2018 Mazda CX-5. The contact stated that while driving at 45 MPH, there was smoke coming from the engine, and the contact smelled an oil-burning odor. No warning lights were illumi

Forward Collision Avoidance

• I am reporting a safety issue involving engine failure and fumes entering the vehicle cabin as well as unintended braking post major engine repair at 75,000 miles on my 2018 Mazda CX5. My vehicle dev
• The infotainment system consistently changes stations and volume on its own. Knob will not allow you to make adjustments . Contacted dealer and infotainment Is not covered under warranty , or extended
• Multiple instances of phantom braking, which resulted in two instances where we were just inches from being rear-ended. The circumstances of the phantom braking are similar, and has occured many times

Fuel/Propulsion System

• Check engine light on when read it comes back with P0171 code
• The cylinder head and timing cover are leaking oil and need to be replaced. It is at the dealer and available for inspection. The car started smoking and lost oil obscuring my vision. The problem appe