10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2017 Mazda CX-9 fuel system problems

fuel system problem

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2017 Mazda CX-9 Owner Comments

problem #5

Jul 062024

CX-9

  • miles

A D V E R T I S E M E N T S

This is the second time my car mazda -2017 had problem with fuel pump. I only saw recall for 2019 Mazda CX-9 in internet. Before the fuel pump fail, I smelled gas inside the car which I was told my mechanic later from the shop where I bought my car for immediate diagnose was considered dangerous. The first time happened 2 years ago when we were on the trip 250 miles from where we live. This time we were about 200 miles away. So the fuel pump it seemed became the problem for Mazda. When we asked Mazda about it they said it is not the same with recall for 2019. If those car has the problem with fuel pump and got the recall why Mazda 2017 did not get recalled? They said it is wear and tear but it is the same issue fuel pump. we spend $912 for original part and bought it from Mazda dealer but we couldn-??t get reimbursed because they said it is not a recall. I am filing this complaint because they denied the problem with Mazda is actually and consistently fuel pump!. I have kids that I have to bring to school. Smelling gas, the car stop suddenly and lost power will get us into accident. So I am writing this to let you all know that 2017 Mazda has the same problem with 2019 Mazda which is fuel pump. Please take this seriously. Thank you

- Elmhurst, NY, USA

problem #4

Jul 102024

CX-9

  • miles
My Mazda 2017 CX 9 apparently had a coolant leak. When we had our oil changed, we were told it looked like it was leaking from behind the turbo booster. As I was driving it yesterday, the car slowed to an almost complete stop on the interstate and a warning sign on the screen showed that it was overheating to a dangerous level. I immediately pulled over and allowed the car to cool down. I checked the coolant level and it was not very low at all, although I did add some coolant at that time. It continued to overheat and even blew tons of smoke out through the exhaust, so I had AAA tow to my home. After researching this, I have found that there was a bulletin posted in 2021 from Mazda about this very thing happening. My husband thinks that we may have a cracked block or a blown head gasket due to this overheating. This obviously could have caused me to have a wreck on the interstate by my car overheating and shutting down so quickly. We are scheduling to have it towed to our local Mazda dealer to let him do the $99 diagnostic. Based on what he finds, which we think will be confirming what we think it is, we will have to have a new engine put in my car due to a defect in manufacturing from Mazda. Even though my car has 130,000 miles on it and is technically -??out of warranty-??, we feel this is simply unacceptable and that Mazda should help us with this most definitely. I have so enjoyed my Mazda, and I feel that this is not something of my doing, but rather a defect on Mazda part and it should be addressed.

- Clarksville, TN, USA

problem #3

Sep 252023

CX-9

  • miles
While driving in normal, operating conditions, the engine cut off and had to pull off to the side of the road. After checking the OBD two error code from the check engine light, there was an error with the fuel pressure rail sensor. Apparently the fuel pump in these vehicles has been failing with regularity on many other models.

- Longmeadow, MA, USA

problem #2

Apr 192023

CX-9

  • miles
Driving home the car said 26 miles to E. while in gear going down the road it popped engine system malfunction and the whole car shut off and wouldn't start. Didn't drive the vehicle for 2 days- filled the gas tank and it drove fine for 5 days. Day 6- 4/8/2023, fine driving down the highway 45 minutes. Go down about a mile and it still doesn't seem right, I move lanes and the thermostat light starts flashing at 260, as soon as I make the turn it tells me to pull over and turn the car off-it was at 270. Go to drive across the street to get coolant later- car stalls when I shift into drive. Park it- get coolant takes an entire jug. Idling a little rough, but not bad. Mechanic he can't see any issues, computer is throwing out fuel system codes but no, issues that can be found. Does a tune up on it, pick it up. Smoking when I start the car and something smells burning. Driving home, it stalls again while in gar at a red light. RPM jumping between 500 and 750 while in gear. Park it for a few hours- everything seems fine. Drive 35 minutes- mostly highway. RPM isn't moving when in park vs neutral. While at last red light before home- engine system malfunction comes on. Driving a few miles down the road still on, temperature at 200. Drive about half a mile down the road- at 260 as I'm pulling into my driveway. Towed to Mazda the next day. Got diagnosis that the head lifted and coolant mixed into oil, flooding engine. Need a new engine and turbo- $10,000 to fix it. Never had issues prior and no signs of anything going wrong. Oil change done 2 weeks prior to this all starting.

- Fellsmere, FL, USA

problem #1

Dec 262021

CX-9

  • miles
Driving Eastbound on I470 Wheeling WVA going uphill toward Exit 10 Cabela Rd the car lost power and could not get off the roadway. The engine failed and the car lost power steering. Could not start the car. The car would turn over, but the engine and battery light were on. The car was sideways in the right lane of traffic unable to be started. State Patrol was called to the area and the vehicle was towed to a Mazda dealer. Mazda dealer determined that the PCM (powertrain control module (PCM) has detected a malfunction in the fuel pump control module) - they noted: "Found code p064a and in TSB 01-010/17 states that PCM needs to be reprogrammed if no other fuel pump codes are detected, no other fuel pump codes were found." Their explanation was that after driving for a long period of time that the computer no longer allowed fuel to the engine. Their actions to correct - "Comments from Service department: We reprogrammed the PCM and cleared codes, test drove and rescanned for codes and found none." This was a known problem by Mazda and they had issued a service bulleting TSB 01-010/17. The bulletin was issued PRIOR to us purchasing the car but the update had not been done on our vehicle, nor had it been done by any Mazda dealer we had taken the car into for service over the past 4 years. This issue that was known by Mazda created a safety issue by shutting off the fuel pump. We were driving at 70 mph on the interstate and could have been hit or worse yet killed. Mazda should have to recall these vehicles and pay for expenses incurred by owners. Mazda will not reimburse us for our expenses. We have contacted them.

- Urbandale, IA, USA

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