Mazda CX-9 problems and known issues

By CarWhere Research · Updated November 6, 2026

The most serious documented Mazda CX-9 problem is the Takata passenger air bag inflator on 2007–2015 models; Mazda told owners of unrepaired vehicles not to drive them. First-generation CX-9s also have a front ball joint corrosion recall. The 2016–2023 second generation has fuel pump, wiring harness and second-row seat recalls. Mazda ended the CX-9 after 2023.

CarWhere lists 6 documented CX-9 issues, including 6 NHTSA safety recalls, each with affected years, powertrains, symptoms, pre-purchase checks and a source. Recall entries come from NHTSA's recall dataset on the DOT open-data portal, which may not list every campaign, so run the specific VIN through NHTSA's recall lookup.

CX-9 generations at a glance

Mazda CX-9 generations and the known issues listed for each
Generation	Model years	Issues on this page
2nd gen	2016–2023	Low-pressure fuel pump impeller can crack (recall 21V875) · Wiring harness connectors can disable air bag, signals or starting (recall 19V403) · Second-row bench can slide forward in a crash (recall 21V750)
1st gen	2007–2015	Takata passenger air bag inflators: do-not-drive advisory (recalls 17V429, 17V457, 18V018, 18V717) · Front ball joints can corrode from water intrusion (recall 15V451) · Power seat harness can short against a bracket (recall 09V066)

2nd gen CX-9 problems (2016–2023)

Low-pressure fuel pump impeller can crack (recall 21V875) (2018–2019)

Safety recall

Generation:: 2nd gen (2016–2023)
Years:: 2018–2019
Powertrain:: 2.5L turbo

A cracked, deformed impeller in the low-pressure fuel pump can make the pump fail. Recall 21V875 covers 2018–2019 CX-9 models among several Mazda models (121,038 vehicles in total). Dealers replace the pump free.

Symptoms

Hesitation or rough running
Engine stall or no-start

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 21V875 (2021-11) · 121,038 vehicles in the campaign

Sources: [1]

Wiring harness connectors can disable air bag, signals or starting (recall 19V403) (2018)

Safety recall

Generation:: 2nd gen (2016–2023)
Years:: 2018
Powertrain:: 2.5L turbo

Weak retention in wiring harness connectors on 7,854 2018 CX-9 models can disrupt electrical communications and disable the passenger frontal air bag, turn signals or engine starting. Dealers repair the harnesses (campaign 3419E).

Symptoms

Air bag warning light
Turn signals or starting fail intermittently

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 19V403 (2019-05) · 7,854 vehicles in the campaign

Sources: [2]

Second-row bench can slide forward in a crash (recall 21V750) (2020–2021 (60/40 bench))

Safety recall

Generation:: 2nd gen (2016–2023)
Years:: 2020–2021 (60/40 bench)
Powertrain:: 2.5L turbo

On 8,648 2020–2021 CX-9 models with a 60/40 split second-row bench, the left-side seat can slide forward unexpectedly in a crash, failing seat belt anchorage standard FMVSS 210. Dealers replace the seat’s internal parts (campaign 5221I).

Symptoms

Second-row seat does not lock firmly on its track

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 21V750 (2021-09) · 8,648 vehicles in the campaign

Sources: [3]

1st gen CX-9 problems (2007–2015)

Takata passenger air bag inflators: do-not-drive advisory (recalls 17V429, 17V457, 18V018, 18V717) (2007–2015)

Safety recall

Generation:: 1st gen (2007–2015)
Years:: 2007–2015
Powertrain:: All

The passenger frontal air bag inflator in 2007–2015 CX-9 models can rupture or explode after years of heat and humidity. Recall 17V429 covered 2007–2011 models; 17V457, 18V018 and 18V717 extended it by region through 2015. Recall 19V782 replaces inflators previously swapped for the same design. In August 2024 Mazda told owners of unrepaired 2007–2015 CX-9s not to drive them. The 205,377 count is for the 17V429 campaign across models.

Symptoms

No warning sign; the defect shows up only when the air bag deploys in a crash

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN
If an air bag recall is open, arrange a tow to a Mazda dealer rather than driving the car

NHTSA recall: 17V429 (2017-06) · 205,377 vehicles in the campaign

Sources: [4][5][6][7][8][9]

Front ball joints can corrode from water intrusion (recall 15V451) (2007–2014)

Safety recall

Generation:: 1st gen (2007–2015)
Years:: 2007–2014
Powertrain:: All

Water can leak into the front suspension ball joint fittings on 193,484 2007–2014 CX-9 models built October 24, 2006 to December 28, 2013, corroding the joints. Dealers replace both lower control arms free; the recall began September 14, 2015, starting with salt-state vehicles.

Symptoms

Clunking over bumps
Loose or wandering steering

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 15V451 (2015-07) · 193,484 vehicles in the campaign

Sources: [10]

Power seat harness can short against a bracket (recall 09V066) (2007–2009)

Safety recall

Generation:: 1st gen (2007–2015)
Years:: 2007–2009
Powertrain:: All

On 30,600 2007–2009 CX-9 models with power memory seats, the seat harness under the cushion can rub against a bracket, damaging its covering and shorting the wire. Dealers inspect the harness, repair the covering and secure it with a cable tie.

Symptoms

Power seat stops working
Burning smell under the seat

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 09V066 (2009-02) · 30,600 vehicles in the campaign

Sources: [11]

Related CX-9 research

This page explains specific mechanical issues and recalls. Which model years drew the most owner complaints relative to the rest of the model’s history is answered in the years-to-avoid research where CarWhere publishes it.

Confirm how a CX-9 was built before you buy.

Engine, transmission and packages decide which of these issues apply. The CarWhere Mazda build sheet reconstructs factory colors, options and packages from licensed VIN-level build data — availability is checked free, and it is $9.99 only when detailed build data is found for that VIN.

Mazda build sheet by VIN

Frequently asked questions

Which Mazda CX-9 years have the Takata air bag recall?

2007–2015 CX-9 models are in Takata passenger inflator recalls 17V429, 17V457, 18V018 and 18V717, with 19V782 for previously replaced inflators. Mazda issued a do-not-drive advisory for unrepaired vehicles in August 2024.

What is the CX-9 ball joint recall?

Recall 15V451 replaced both front lower control arms on 2007–2014 CX-9 models because water could leak into the ball joints and corrode them.

What recalls affect the 2016–2023 CX-9?

Second-generation recalls include the 2018–2019 fuel pump (21V875), a 2018 wiring harness (19V403) and a 2020–2021 second-row bench seat (21V750).

When was the CX-9 discontinued?

Mazda said in June 2023 that it would discontinue the CX-9 in the U.S. after the 2023 model year; the three-row CX-90 replaced it.

How do I check a CX-9 for open recalls?

Enter the VIN at NHTSA’s recall lookup and on Mazda’s recall page. If an air bag recall is open, have it towed to a Mazda dealer.

Sources

Issue descriptions are CarWhere’s own summaries of the sources below. Repair costs are shown only where a source states them and vary by shop and region.

More Mazda tools

Independent reference compiled by CarWhere — not affiliated with or endorsed by Mazda North American Operations or Mazda Motor Corporation. Mazda and the model names are trademarks of their owners.