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2017 Mazda CX-9 problems

The most common problem on the 2017 Mazda CX-9 is engine and cooling. Its complaint count is close to a typical CX-9 model year.

Typical yearClose to a typical year
Year score
75/100
Owner complaints
61
Recalls
0
Service bulletins
51422 warranty
Worst area
Engine
Fuel economy
23-24mpg

The worst 2017 Mazda CX-9 problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Engine
    43
  • Fuel system
    6
  • Suspension
    4
  • Transmission
    4
  • Driver assistance
    3
  • Electrical
    2
  • Steering
    2
  • Wheels
    2
  • Body
    1
  • Seats
    1
  • Visibility
    1

Specific symptoms reported on the 2017 Mazda CX-9

Overheating 27Engine failure 17Check engine light 9Loss of power 5

Recalls

No recalls on record for this model year.

Technical service bulletins for the 2017 Mazda CX-9 514

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 514 bulletins for the 2017 Mazda CX-9

2017 Mazda CX-9 fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
2.5L 4‑cylFWD222824
2.5L 4‑cyl4WD202623

What 2017 Mazda CX-9 owners say

Most recent owner complaints, unedited.

Filed Jun 11, 2026 · Engine · MS

this is covered under csp11. the problem is my car is a 2017 and they only allow a warranty up to 120,000 miles mine is at 158000 and they will not fix the problem now even thought we just started having problems.

Filed Jun 5, 2026 · Fuel system · NC

Engine running rough. Check Engine Light illumination. Difficulty starting or a no-start condition. Noticeable loss of power during acceleration Check engine light P0192

Filed Dec 11, 2025 · Steering · MA

The car was jump start due to a bad battery it cold and the light was left on. Right after the jump start a check engine light can on. When I put the vehicle in drive to turn the steering wheel it violently snapped bad and broken one of my finger nail. I tried aging in disbelief it happened aging this shouldn't be happening it could've broke my fingers.

Filed Sep 22, 2025 · Engine · UT

I took our vehicle into Mazda due to a coolant leak that could not be located. It had my wife stranded due to the vehicle overheating. Everything lined up with CSP11. The dealership is now stating that the vehicle has a blown gasket and needs an engine replacement. This is the issue covered by CSP11 except that the crack is in the wrong location. They haven't found the Crack but are denying the warranty due to the covered location not being the source. The vehicle only has 93000 miles on it.

Filed Jul 18, 2025 · Driver assistance · CA

My infotainment screen goes black 10-12 times a year, and therefore I lose access to my backup cameras. I have to turn the car off, and then back on, in order for the screen to function again. This has been happening for the full 8 years I have owned the car. I also have video of this happening, but the file is too large to attach so including photo only.

Filed Mar 26, 2025 · Engine, Steering · PA

I was driving the vehicle on the highway when the vehicle started to overheat, lights started blinking, the car was smoking, losing power and acceleration. This car has a recall on the cyclindwr head which when cracks causing the car to loose coolant and oil. If it cracks while you’re driving especially on the highway the car will immediately loose coolant and oil thus causing a very dangerous driving condition. There was no indicator prior to the failure that there was anything wrong with the car. No check engine lights, no coolant lights nothing. Prior to this happening I smelled coolant in the car cabin , took it to my mechanic who tested the coolant system and found no leak. At the time he was unaware of the known issue these cars have with the cylinder head. The problem has been confirmed by Mazda and they notified me within the month of March of the problem and the extended warranty to replace the known manufacturer defect cylinder head. The Mazda dealer now has my car and acknowledges the cracked cylinder head caused the problem but said because I didn’t immediately stop on the highway and kept driving until I got to a safe location I was negligent and are refusing to fix the car which now has a blown engine, etc. it is available for inspection now at the Mazda dealer. My safety was put at risk because I could have died on the highway if the car completely stopped working, it was dangerous driving it when it first started happening because it started out of nowhere the car was fine I was driving 50+ mph and it started smoking, overheating etc. I could have also killed someone else. It is a disgrace that not only they won’t fix my car they want to say they won’t because I’m negligent? I drive my kids to and from school everyday do you think I’m going to risk their safety in an unsafe car? They should not only fix the car but compensate me for putting mine and my children’s lives at risk. A complete disgrace.

Filed Jan 16, 2025 · Engine · IL

Vehicle experienced coolant leak also oil leak from rear of engine. Broken cylinder head due to turbo too close to head

Filed Dec 30, 2024 · Transmission · PR

Coolant leak cylinder head. It was running and i could smell coolant on the minifalda and it shout down.

Filed Sep 11, 2024 · Engine · OH

My 2017 Mazda CX9 Signature Edition started leaking coolant from the engine near the firewall. I had a Mazda dealer investigate. They tell me the cylinder head is cracked and the entire engine needs replaced. This appears to be a common problem due to a design flaw and there is a Mazda service bulletin on it. I have found talk of a class action suit online because Mazda is not standing behind their product. I only have 88k miles on this car

Filed Aug 30, 2024 · Engine · AZ

My 2017 Mazda Cx9 was stalling and jerking while driving almost causing an accident but glad I was able to drive it home without causing an accident. Took the car to the dealership and was advised that it needs a new engine due to coolant leak. The coolant was going inside the vehicle.

Used buying checklistWhat to check on a 2017 Mazda CX-9 before you buy

Compare the 2017 Mazda CX-9

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Other model years

20072008200920102011201220132014201520162017201820192020202120222023

Questions about the 2017 Mazda CX-9

Is the 2017 Mazda CX-9 reliable?

Owners have filed 61 complaints about the 2017 Mazda CX-9, close to a typical CX-9 model year.

What is the 2017 Mazda CX-9 year score?

The 2017 Mazda CX-9 scores 75 out of 100 (average). The score compares it with the other model years of the Mazda CX-9: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2017 Mazda CX-9?

Engine and cooling, with 43 complaints. Next is fuel system (6).

How many recalls does the 2017 Mazda CX-9 have?

No recalls on record.

What year does the Mazda CX-9 have bad engine?

The Mazda CX-9 model years with the most engine complaints are 2018 (78 complaints), 2016 (72 complaints) and 2017 (43 complaints).

What gas mileage does the 2017 Mazda CX-9 get?

Official estimates for the 2017 Mazda CX-9 range from 23 to 24 mpg combined. The most efficient version (2.5L 4-cyl, FWD) gets 22 city and 28 highway.

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