2009 INFINITI QX: What's New, Specs & Features

Last updated August 4, 2026

2009 INFINITI QX

For 2009, the QX56 joined the QX lineup, making this a trim-change year rather than a redesign. The only other notable update was automatic speed-sensing door locking.

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About the 2009 INFINITI QX

1st generation (2004-2009), final year after the 2008 refresh.

Infiniti positioned the QX as a full-size luxury SUV for buyers who needed real towing strength, three-row space, and upscale comfort in one vehicle. The brand’s pitch centered on strong V8 power, class-leading second-row legroom, a very long standard-equipment list, and all-season usefulness rather than a stripped-down base model. Compared with rivals, the QX leaned into being bold-looking, roomy, and highly equipped right from the start.

INFINITI sold the QX56 as a single, well-equipped full-size luxury SUV with three-row seating and V8 power. Highlights included leather seating, navigation, Bose audio, heated first- and second-row seats, and a power-folding third row.

What changed, by category

Tech
The standard power-lock system gained automatic speed-sensing door locking.

2009 INFINITI QX specs and features by trim

2009 INFINITI QXQX560 in stock
EngineV8, 5.6 Liter
TransmissionAutomatic, 5-Spd w/Overdrive
Drivetrain4WD
Fuel TypeGas
MPG City12 mpg
MPG Highway18 mpg
Horsepower320 hp
Torque393 lb-ft
Max Towing8900 lb
Trunk/Cargo97.1 cu-ft
Rear Legroom32.2 in
Seats8
Doors4
Alarm System
Rear View Camera
Fog Lights
Power Moonroof
Roof Rails
Bluetooth
Navigation System
Premium Audio
Dual-Zone Climate Control
Heated Front Seats
Heated Steering Wheel
Leather Seats
Third Row Seat
Tilt Wheel

How the 2010 INFINITI QX compares

The 2010 INFINITI QX56 is a true carryover with no major product changes. It closes out the first generation before the fully redesigned 2011 model arrived.

See the full 2010 changes

Frequently asked questions

Was the 2009 INFINITI QX redesigned?

No. The 2009 QX was not redesigned; it remained part of the first generation and carried over the truck-based construction, styling, and major mechanical components from 2008.

What was the main change to the 2009 INFINITI QX lineup?

The main lineup change was the addition of the QX56 trim. Beyond that, 2009 was a quiet model year with no broad redesign or powertrain update.

What new feature did the 2009 INFINITI QX receive?

The 2009 QX gained automatic speed-sensing door locking as part of its standard power-lock system. No other meaningful lineup-wide technology update was made.

Did the 2009 INFINITI QX get a new engine or transmission?

No. The 2009 QX kept its 320-horsepower 5.6-liter V8 and five-speed automatic transmission, with rear-wheel drive or four-wheel drive.

How different is the 2009 INFINITI QX from the 2008 model?

The 2009 QX is very similar to the 2008 model. Its main functional update is automatic speed-sensing door locking, while the engine, transmission, structure, styling, and major cabin equipment carry over.

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