Lexus RX 400H Research & Reviews

Overview & Reviews

Average Score

4.65/5 Average
301 Total Reviews
Model Overview:

Starting in 2006, those wishing to fly their "green" flag in the lap of luxury had a willing ally in which to strut their stuff. With its advanced gasoline-electric drivetrain, the Lexus RX 400h SUV married the luxury and utility of Lexus' RX midsize crossover vehicle with the improved fuel economy and performance of a hybrid.

Available in either front- or all-wheel-drive versions, the Lexus RX 400h used a hybrid powertrain system that combined a gasoline-fueled V6 engine with a battery pack and electric motor generators. Similar to the hybrid setups on other Toyota products, the 400h could seamlessly accelerate on battery power alone during light acceleration. It also boasted a generous 286 horsepower overall, giving it impressive performance along with superior fuel economy ratings.

The Lexus RX 400h crossover was the first true luxury hybrid SUV, and it came packaged with all the normal RX traits like premium interior amenities and a smooth ride. But potential used-SUV buyers simply wishing to go green might also want to check out other, less extravagant hybrids if price is a consideration.

Most Recent Lexus RX 400h

The Lexus RX 400h midsize luxury SUV was produced from 2006-'09 essentially unchanged. It came in a single trim level with standard cloth seats, 10-way power front seats, dual-zone climate control, second-row sliding/reclining seats and a six-disc CD player. Popular options included leather trim, a power tilt-and-telescoping steering wheel, a moonroof, a navigation system with a back-up camera and 18-inch wheels. An audio package with a Mark Levinson DVD audio system was also available.

Under the sheet metal, the 400h's hybrid drivetrain combined a 3.3-liter V6 engine with a 288-volt nickel-metal hydride battery pack and high-torque, electric-drive motor-generators. Driving through a continuously variable transmission, the 400h produced 268 hp and boasted a 0-60-mph time of less than 8 seconds for standard and all-wheel-drive models. Standard safety features were plentiful, and included front, side curtain and driver-knee airbags, as well as stability and traction control and a rollover sensor.

Inside there was a streamlined, modern cabin with aluminum accents, bright-ringed gauges and a touchscreen detailing the hybrid's gas-electric power generation split. A sliding and reclining split rear seat optimized passenger comfort, and a power liftgate provided access to nearly 85 cubic feet of cargo space with the seats folded down. A third-row seat was not available.

Once underway, the Lexus RX 400h drove much like its traditional gas-powered sibling, and although the electric motors didn't provide the same lusty soundtrack of a performance car, acceleration was certainly spirited. The 400h's ride was soft and compliant, yet the handling was also generally tight and precise, a surprise given the hybrid's 300 extra pounds of curb weight. But you could definitely feel that extra weight in faster corners and quick transitions. Our editors also noticed that a good deal of engine noise entered the cabin under hard acceleration, as the hybrid system forced the V6 to regularly spin right up to redline.

User Reviews:

Showing 101 through 110 of 301.00
  • Lexus RX400h - 2006 Lexus RX 400H
    By -

    This vehicle is not only green and gas efficient but it is also fun to drive. I am short and this car easily adjusts to my driving comfort. There are no shortage of luxury features. Steering is relaxed and easy, nav system is excellent, and comfort is outstanding. I find the visibility to be good, with fewer blind spots than my last SUV. Lexus appears to done everything right with the vehicle.

  • A home run for "green" vehicles - 2006 Lexus RX 400H
    By -

    In my first month of ownership I have not found anything that I dislike, and for me thats unusual! The vehicle is a joy to drive and a real attention- getter. I was somewhat skeptical at first about the CVT as I expected it to be sluggish and ungainly, but after just a few miles I completely forgot that it wasnt a 4- or 5-speed automatic. I really like the fact that I can monitor fuel economy while driving and adjust my driving habits to maximize it. As far as Im concerned, Lexus hit a real home run with this one, and it was well worth the 8 month wait from the time I originally ordered it.

  • Combination of fun and milage - 2008 Lexus RX 400H
    By -

    Great for long rides and everyday drives. Absolutely love the feeling of CVT and can see the vehicles on the other lanes disappear in my mirrors with out the feeling of gear change.

  • Not perfect yet - 2006 Lexus RX 400H
    By -

    This is a great car but I have four things that if changed would make it perfect! First, when entering I have to duck (I am 56") my head a little and it bothers my neck sometimes. Second, the second row seats dont fold flat and I have bulldogs that like to be level. Third, the back window is so slanted that the sun beats down and melts my groceries and overheats my dogs. And finally, I HATE the console with the push button open close system. My dogs step on it and fall in the console all the time. I would much prefer a large console with a padded hinged lift top. That would eliminate the fold down arm rests which I find a nuisance.

  • Moved down from Expedition - 2007 Lexus RX 400H
    By -

    I bought my RX 400h after much research and thought. Lexus name plate puts some back (you bought a Lexus??) but the hybrid part really perks up ears. I even got a statement "you never seemed like the hybrid type!" Mileage is good, fun to watch the gauge, wish it had backup alarm, camera is good. Prev issues have been addressed: nav is outstanding (not grainy), SAT is now available, discrete word Hybrid on side says enough. Power is amazing when you need it. Friends all want a ride, never had that in any other car. Takes a bit of getting used to wind down at stops, and lack of motor noise at start up, but not a problem. A/C keeps going even with gas motor off. Great car.

  • sad - 2008 Lexus RX 400H
    By -

    It is unfortunate that the new Lexus gets nothing near the promised gas mileage. you will be lucky to get 17/22 with the hybrid. I wonder if the non-hybrid gets worse gas mileage? Also, the battery and engine make a lot of noise. The CVT is awkward at best, and not a luxury item. Kinda of like calling a dude ranch luxury hotel. It still a ranch and smells like a ranch no matter how nice the beds. I am not even going to mention my unhappiness with the lockout function on the nav and blue tooth. If I could do over, I would save 15 grand and buy the 350 or the Acura RDX. I feel like such a sucker for buying the "hybrid."

  • Amazing - 2006 Lexus RX 400H
    By -

    Car is exceptional. It is quiet, comfortable and the mileage is great. I notice that by adjusting your driving you can improve mileage. In a recent 80 mile expressway trip I averaged 27.5 mpg going just under 70 mph. In the city, I have gotten as much as an average of 35 mpg. This is nearly double the mileage of my last car, a 2002 RX 300. With gas prices now so high, I feel like I have the best of both worlds. I can keep driving an SUV and get great gas mileage as the same time. Plus the car is a dream to drive.

  • Dont buy nav system - 2007 Lexus RX 400H
    By -

    This is a great car, but dont bother buying the nav system. The system is virtually disabled when the car is moving. You cannot input anything into the system unless you pull over and stop the vehicle. This bug makes the system almost useless. Buy a portable Garmin unit instead, it will save you money and frustration!

  • RX 400h - 2006 Lexus RX 400H
    By -

    Vehicle feels safe, comfortable and fast for an SUV. Holds the road well. Gets good mileage. Great for passing other vehicles. Love all the featuers such as side dimming mirrors, turning headlights, bright headlights, memory seats, tilting side mirror when backing up, rear camera.

  • RX400h ROCKS!!! - 2006 Lexus RX 400H
    By -

    I just love my Lexus RX400h purchased July 2005. It rides so smoothly and quietly. Furthermore, it handles the road extremely well. In short, I simply enjoy driving it!!!

Lexus RX 400H Reviews By Year:
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