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Model Details

RX Hybrid Model Details

2010
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RXh 2010

The RX 450h is all-new for 2010. A lighter, more compact hybrid system is combined with an Atkinson-cycle 3.5L V6 engine that together produce 295 total system horsepower [1] for improved performance and fuel efficiency. A uniquely designed double-wishbone rear suspension improves handling while increasing usable cargo room.

Inside, a redesigned interior features a newly available Remote Touch device with voice command that can understand casual speech, plus available XM NavTraffic® [2] [3] and XM NavWeather™ [2] [3] —an SUV-first. Rear-seat passengers can enjoy a new dual-screen DVD Rear-Seat Entertainment System (RSES) [4] that is capable of showing video from two independent sources.

Parchment, Light Gray and Black interior colors are offered, with standard brown walnut or espresso bird's-eye maple interior trim. Ten exterior colors are available, including an all-new Cerulean Blue Metallic and Aurora White Pearl, plus Tungsten Pearl, Starfire Pearl, Black Sapphire Pearl, Truffle Mica, and Obsidian.


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Engine
RX 450h AWD RX 450h FWD
Type Atkinson Cycle 60o V6, aluminum block and heads  Atkinson Cycle 60o V6, aluminum block and heads 
Displacement 3.5 liters (211 cubic inches)  3.5 liters (211 cubic inches) 
Valvetrain Four cam, four valves per cylinder, with Variable Valve Timing with intelligence (VVT-i)  Four cam, four valves per cylinder, with Variable Valve Timing with intelligence (VVT-i) 
Compression Ratio 12.5:1  12.5:1 
Electric-Drive Motors Front and rear high-output, permanent-magnet, electric-drive motors  Front high-output, permanent-magnet, electric-drive motor 
Total System Horsepower 295 [1]  295 [1] 
Emission Rating Certified Super Ultra-Low Emission Vehicle (SULEV II)  Certified Super Ultra-Low Emission Vehicle (SULEV II) 
 
Performance
RX 450h AWD RX 450h FWD
0-60 MPH Acceleration 7.4 seconds [1] [7]  7.8 seconds [1] [7] 
1/4 Mile Acceleration 15.6 [1] [7]  16.0 [1] [7] 
Top Track Speed (electronically limited) 112 mph [1] [7]  112 mph [1] [7] 
EPA Fuel Economy Ratings (city/highway/combined) 30/28/29 mpg [8]  32/28/30 mpg [8] 
Aerodynamic Drag Coefficient 0.33  0.33 
Turning Circle 38.8 ft  38.8 ft 
 
Drivetrain
RX 450h AWD RX 450h FWD
Transmission Electronically Controlled continuously Variable Transmission (ECVT) with Manual Shift and Snow modes  Electronically Controlled continuously Variable Transmission (ECVT) with Manual Shift and Snow modes 
Drive Wheels Part-time all-wheel drive (AWD[9] with rear electric drive motors  Front-wheel drive 
 
Chassis
RX 450h AWD RX 450h FWD
Suspension (front) Independent, MacPherson struts with inversely wound coil springs, gas-pressurized shock absorbers and stabilizer bar  Independent, MacPherson struts with inversely wound coil springs, gas-pressurized shock absorbers and stabilizer bar 
Suspension (rear) Independent double-wishbone with coil springs, gas-pressurized shock absorbers and stabilizer bar  Independent double-wishbone with coil springs, gas-pressurized shock absorbers and stabilizer bar 
Steering Electronic Power Steering (EPS) system  Electronic Power Steering (EPS) system 
Brakes Four-wheel power-assisted discs with Electronic Controlled Braking (ECB), four-sensor, four-channel Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Brake Assist [10] and regenerative function  Four-wheel power-assisted discs with Electronic Controlled Braking (ECB), four-sensor, four-channel Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Brake Assist [10] and regenerative function 
Brake Size 12.9-in ventilated front, 12.2-in solid rear discs  12.9-in ventilated front, 12.2-in solid rear discs 
Wheels and Tires 18 x 7.5-in five-spoke alloy wheels with 235/60VR18 all-season tires [11]. Compact spare tire/wheel.  18 x 7.5-in five-spoke alloy wheels with 235/60VR18 all-season tires [11]. Compact spare tire/wheel. 

All specifications in this category are the same for all models.

 
Body / Dimensions
RX 450h AWD RX 450h FWD
Type Five-passenger hybrid luxury utility vehicle  Five-passenger hybrid luxury utility vehicle 
Construction Welded-steel unibody  Welded-steel unibody 
Overall Length 187.8 in (4,770 mm)  187.8 in (4,770 mm) 
Width 74.2 in (1,885 mm)  74.2 in (1,885 mm) 
Height 67.7 in (1,720mm)  66.3 in (1,685mm) 
Wheelbase 107.9 in (2,740mm)  107.9 in (2,740mm) 
Ground Clearance 6.9 in (175mm)  6.9 in (175mm) 
Approach Angle 28.6o  28.5o 
Departure Angle 24.6o  24.6o 
Cargo Capacity (behind rear seats) [12] 40.0 cu ft (1,132 L)  40.0 cu ft (1,132 L) 
Cargo Capacity (max) [12] 80.3 cu ft (2,272 L)  80.3 cu ft (2,272 L) 
Curb Weight 4,652 lb (2,110 kg)  4,520 lb (2,050 kg) 
Tow Capacity (max) 3,500 lb (1,588 kg) (with optional Towing Prep Package) [13]  NA 
Fuel-Tank Capacity 17.2 gal (65 L)  17.2 gal (65 L) 
Headroom 39.0/37.7 (992/958 mm) (w/o moonroof) (front/rear)  39.0/37.7 (992/958 mm) (w/o moonroof) (front/rear) 
Legroom 43.1/37.1 in (1,095/942 mm) (front/rear)  43.1/37.1 in (1,095/942 mm) (front/rear) 
Shoulder Room 57.9/57.5 in (1,473/1,462 mm) (front/rear)  57.9/57.5 in (1,473/1,462 mm) (front/rear) 
Hip Room 55.5/54.5 in (1,412/1,385 mm) (front/rear)  55.5/54.5 in (1,412/1,385 mm) (front/rear) 
 
[1]Ratings achieved using the required premium unleaded gasoline with an octane rating of 91 or higher. If premium fuel is not used, performance will decrease. [2]The Navigation System is designed to assist in locating an address or point of interest. XM® Radio, XM NavTraffic®, XM NavWeather™ and XM® Sports and Stocks require a monthly service fee and hardware. XM NavTraffic is designed to provide real-time traffic or alternative routes of travel; XM NavWeather is designed to provide real-time weather and forecasting information in your general vicinity and along your route of travel. Discrepancies may be encountered between the system and your actual location. Road system and weather changes may affect the accuracy of the information provided. Rely on your common sense to decide whether to follow a specified route. Detailed coverage not available in every city or roadway. Periodic Navigation updates available at an additional cost. Please see your Navigation System Owner's Manual for further details. [3]XM NavTraffic® and XM NavWeather™ each require a separate XM subscription. XM® Sports and Stocks is available with an XM® Radio subscription. After a 90-day complimentary trial, you must set up the appropriate XM subscription(s) to continue receiving these services. The XM NavTraffic, XM NavWeather and XM Sports and Stocks services are available in the 48 contiguous United States and D.C. For details about the XM service coverage areas, visit www.xmradio.com or call the XM Listener Care Center at 1-877-515-3987. To receive XM NavTraffic, XM NavWeather and XM Sports and Stocks services, XM service must be activated. To activate the service, call the XM Listener Care Center. Subscriptions are governed by the XM Customer Agreement available at xmradio.com/serviceterms. XM Radio fees, services and programming are subject to change. [4]A single-disc DVD player is standard. A separate DVD player or game system utilizing the center console’s video/audio inputs is required in order to use the split-screen function of the dual-screen system. [5]MSRP does not include delivery, processing and handling fee of $910. Excludes taxes, title, license and optional equipment. Dealer price may vary. Does not include accessory options installed by dealer. [6]Delivery, processing and handling fee is based on the value of the processing, handling and delivery services Lexus provides, as well as Lexus' overall pricing structure. Lexus may make a profit on the delivery, processing and handling fee. [7]Performance figures are for comparison only and were obtained with prototype vehicles by professional drivers using special safety equipment and procedures. Do not attempt. [8]EPA MPG Estimates. Actual mileage will vary. [9]The RX 450h is not designed to be driven off-road. [10]Brake Assist is designed to help the driver take full advantage of the benefits of ABS. It is not a substitute for safe driving practices. Braking effectiveness also depends on proper brake-system maintenance, tire and road conditions. [11]18-in performance tires are expected to experience greater tire wear than conventional tires. Tire life may be substantially less than 15,000 miles, depending upon driving conditions. [12]Cargo and load capacity limited by weight and distribution. [13]Before towing, confirm your vehicle and trailer are compatible, hooked up and loaded properly and that you have any necessary additional equipment. Do not exceed any Weight Ratings and follow all instructions in your Owner's Manual. The maximum you can tow depends on the total weight of any cargo, occupants and available equipment. Back to top