2020 Mazda CX-9 Problems, Recalls & Reliability
Verdict
BestComplaint Index
0/100
#14 most-complained of 14 CX-9 years
The 2020 Mazda CX-9 has a complaint index of 0 and ranks 14th (best) out of 14 model years, earning a 'Best' verdict. NHTSA lists 19 complaints, 1 recall, and 1 crash with no fires or deaths.
- Complaints
- 19
- Recalls
- 1
- Crashes / fires
- 1 / 0
- Injuries / deaths
- 1 / 0
- NHTSA overall rating
- 5 / 5 ★
- EPA combined MPG
- 23.5
- 21 city / 27 hwy
Top 2020 Mazda CX-9 problems
NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.
- Engine5 (26%)
- Electrical System4 (21%)
- Collision Avoidance & Cameras3 (16%)
- Fuel System3 (16%)
- Other3 (16%)
- Brakes2 (11%)
- Transmission & Powertrain2 (11%)
- Airbags1 (5%)
- Structure & Body1 (5%)
- Suspension, Wheels & Tires1 (5%)
What owners report
- Owners report uncommanded engine acceleration while approaching a stop, requiring firmer braking to control the vehicle.
- Some vehicles show coolant leaks near the cylinder head or exhaust manifold, leading to engine overheating and limp mode limited to around 30 mph.
- Excessive oil consumption has been reported, with owners needing to add a quart of oil in under 3,000 miles of driving.
- The forward emergency braking system has falsely engaged at around 20 mph even with adaptive cruise disengaged.
- Electrical system faults triggered engine and sensor warning lights on the freeway, causing loss of acceleration until the vehicle was restarted.
- A fuel cap warning light preceded jerking and vibration at a stop sign around 14,000 miles, per NHTSA data.
2020 Mazda CX-9 recalls
1 NHTSA recall campaign list this model year.
- NHTSA 21V750000Sep 27, 2021Structure & Body8,648 vehicles
Seats:mid/rear assembly
Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-9 vehicles equipped with 60/40 split bench second-row seats. The left-side second-row seat may unexpectedly slide forward during a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt Assembly Anchorages."
Risk: A seat that slides forward during a crash can transfer excessive force onto a belted occupant, increasing their risk of injury.
Remedy: Dealers will replace the internal parts of the affected second-row seats, free of charge. Owner notification letters were mailed November 4, 2021. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 5221I.
2020 Mazda CX-9 fuel economy and fuel cost
- City
- 21 MPG
- Highway
- 27 MPG
- Combined
- 23.5 MPG
- Annual fuel cost (EPA)
- $2,750
- 15,000 mi/yr
- Fuel
- Regular
- Current regular gas
- $4.32/gal
- national avg.
EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.
2020 compared with other CX-9 years
Frequently asked questions
- Is the 2020 Mazda CX-9 reliable?
- Based on NHTSA owner complaints and recalls, the 2020 CX-9 ranks 14th out of 14 model years with a complaint index of 0, giving it a 'Best' verdict relative to other CX-9 years.
- What problems does the 2020 Mazda CX-9 have?
- NHTSA lists 19 complaints for the 2020 CX-9, with the Engine as the top problem area at 5 complaints (26% share), followed by Electrical System issues at 4 complaints (21%).
- Does the 2020 Mazda CX-9 have any recalls?
- Yes, NHTSA lists one recall for the 2020 CX-9 (campaign 21V750000) covering second-row 60/40 split bench seats that may slide forward unexpectedly during a crash. It is not a do-not-drive recall.
- What is the fuel economy of the 2020 Mazda CX-9?
- EPA rates the 2020 CX-9 at 23.5 mpg combined (21 city / 27 highway), with an estimated annual fuel cost of $2,750.
- How does the 2020 CX-9 compare to other years?
- The 2020 model has a complaint index of 0 and ranks best among all 14 CX-9 model years tracked, compared to years like 2012 with an index of 100, which is rated 'Avoid'.