The 2021 Acura Rdx stands out in the luxury SUV market, offering a compelling blend of performance, technology, and sophisticated design. For those in the automotive repair field or simply car enthusiasts wanting in-depth knowledge, understanding the specifications and features of this vehicle is crucial. This article delves into the detailed aspects of the 2021 Acura RDX, providing a comprehensive overview of what makes this SUV a noteworthy contender.
Power and Performance Under the Hood
At the heart of the 2021 Acura RDX lies a robust Turbo Aluminum-alloy 4-Cylinder engine. Both the standard RDX and the RDX SH-AWD variants are equipped with this powerful 2.0-liter engine, delivering 272 horsepower at 6,500 rpm. The torque is equally impressive at 280 lb-ft, available across a wide range from 1,600 to 4,500 rpm. This engine features a 16-Valve, DOHC VTEC® valvetrain and a 9.8:1 compression ratio, ensuring efficient and responsive performance. Direct fuel injection and a Drive-by-Wire Throttle System further enhance the driving experience. The inclusion of Idle Stop technology also contributes to fuel efficiency. Both models achieve a ULEV-50 CARB emissions rating and boast a long tune-up interval of 100k +/- Miles with no scheduled tune-ups, highlighting their reliability and low maintenance needs.
Drivetrain and Handling Dynamics
The 2021 Acura RDX offers a choice between Front-Wheel Drive (RDX) and Acura’s renowned SH-AWD® (Super Handling All-Wheel Drive™) for enhanced control and stability, particularly in varying road conditions. Both configurations come standard with a smooth and responsive 10-Speed Automatic Transmission, complemented by Sequential SportShift Paddle Shifters for a more engaging driving experience. The gear ratios are finely tuned, ranging from a 5.25 1st gear to a 0.52 10th gear, and a 4.17 final drive ratio, optimizing both acceleration and fuel economy.
Fuel Efficiency and Economy
When it comes to fuel economy, the 2021 Acura RDX provides competitive EPA ratings. The Front-Wheel Drive model achieves 22 mpg in the city, 28 mpg on the highway, and 24 mpg combined. The SH-AWD variant is slightly less efficient due to the all-wheel-drive system, with ratings of 21 mpg city, 27 mpg highway, and 23 mpg combined. Interestingly, opting for the A-Spec® Package does not significantly alter these figures, maintaining similar fuel consumption. Both models require Premium Unleaded 91 Octane fuel and have a fuel tank capacity of 17.1 U.S. gallons, ensuring a good balance between performance and range.
Chassis and Suspension System
The chassis of the 2021 Acura RDX is engineered for a comfortable yet dynamic ride. It features a MacPherson Strut Front Suspension and a Multi-Link Rear Suspension, along with Stabilizer Bars (30mm front and 23mm rear) for reduced body roll during cornering. Amplitude Reactive Dampers are standard, and an Adaptive Damper System is available (indicated as ‘A’ in the original table, likely referring to availability in higher trims like the Advance Package). The Dual-Pinion, Variable-Ratio Electric Power Steering (EPS) and Agile Handling Assist® contribute to the RDX’s responsive and nimble handling. The Integrated Dynamics System (IDS) offers 4 modes – Snow, Comfort, Sport, and Sport+ – allowing drivers to tailor the vehicle’s dynamics to their preferences and driving conditions. Braking is handled by Ventilated Front Disc and Solid Rear Disc Brakes (12.4 inches and 12.2 inches respectively). Wheel options vary by package, including 19-inch and 20-inch Aluminum-Alloy Wheels in various designs and finishes. Standard tires are 235/55 R19 High-Performance All-Season, with the A-Spec Package upgrading to 255/40 R20 High-Performance All-Season tires. The steering ratio is 11.95, and the turning diameter is 38.9 feet curb to curb, making it reasonably maneuverable in urban environments.
Dimensions and Space
The 2021 Acura RDX presents practical dimensions for a luxury SUV. Exterior dimensions include a length of 186.8 inches, a width of 74.8 inches, and a height of 65.7 inches, with a wheelbase of 108.3 inches. The track measures 64.2 inches at the front and 64.7 inches at the rear. It offers a ground clearance of 8.2 inches unladen, suitable for varied terrains. Inside, the RDX provides ample space with headroom of 40 inches in the front and 38 inches in the rear, and legroom of 42 inches in the front and 38 inches in the rear. Shoulder room is 60 inches in the front and 57 inches in the rear, while hiproom is 55 inches in the front and 50 inches in the rear. The EPA passenger volume is 104 cu ft. Cargo space is generous, with 29.5 cu ft behind the second row (31.1 cu ft including underfloor storage) and a maximum of 58.9 cu ft behind the first row (79.8 cu ft maximum with seats folded and space utilized up to the front seats).
Weight and Distribution
The curb weight of the 2021 Acura RDX varies depending on the drivetrain and package. The base RDX weighs 3783 lbs, while the SH-AWD version weighs 4019 lbs. Weight distribution is 59/41 percent front/rear for the FWD model and 57/43 percent for the SH-AWD, contributing to balanced handling.
Advanced Safety and Driver Assistance – AcuraWatch™
A significant highlight of the 2021 Acura RDX is the inclusion of AcuraWatch™ Advanced Safety & Driver-Assistance Technology. This suite includes Forward Collision Warning (FCW) System, Collision Mitigation Braking System™ (CMBS™), Lane Departure Warning (LDW) System, Lane Keeping Assist System (LKAS), and Road Departure Mitigation (RDM) System. Adaptive Cruise Control (ACC) with Low-Speed Follow and a Multi-View Rear Camera with Dynamic Guidelines are also standard. Higher trims add features like Head-Up Warning (HUW), Blind spot information (BSI) System, Surround-View Camera System, and Rear Cross Traffic Monitor, enhancing both safety and convenience.
Safety and Security Features
Beyond AcuraWatch, the 2021 RDX is built with the Next-Generation Advanced Compatibility Engineering™ (ACE™) Body Structure. It includes multiple airbags: Dual-Stage, Multiple-Threshold Front Airbags (SRS), Front Side Airbags, Side Curtain Airbags, and Front Knee Airbags. Vehicle Stability Assist™ (VSA®) with Traction Control, 4-Wheel Anti-Lock Braking System (ABS), Electronic Brake Distribution (EBD), and Brake Assist are standard. Additional safety features include LED Daytime Running Lights (DRL), Tire Pressure Monitoring System (TPMS), and a Theft-Deterrent System with Electronic Immobilizer. Depending on the trim, it may include a Tire Sealant and Repair Kit or a Spare Tire.
Driver Convenience and Technology
The 2021 Acura RDX is equipped with numerous driver convenience features, including Hill Start Assist, Electric Parking Brake with Automatic Brake Hold, Cruise Control, and Auto-On/Off Headlight Operation. Parking Sensors, Auto High-Beam, Rain-Sensing Windshield Wipers (on higher trims), and Heated Side Mirrors are also available. Inside, the True Touchpad Interface™, a 10.2-Inch HD Dual-Content Center Display, and a 7-Inch Color Multi-Information Display (MID) are standard. Connectivity is comprehensive with Mobile Hotspot Capability, Acura Navigation System (on Technology and higher packages), AcuraLink Real-Time Traffic™, Apple CarPlay®, and Android Auto™ integration. Audio systems range from a 9-speaker Acura Premium Audio System to a 16-speaker Acura/ELS Studio® 3D Premium Audio System in higher trims.
Interior Comfort and Design
The interior of the 2021 Acura RDX is designed for comfort and sophistication. Dual-Zone Automatic Climate Control, Keyless Access System, Pushbutton Ignition, and Power Windows are standard. Sport Seats with Leatherette-Trimmed Interior are base, with upgrades to Perforated Milano Premium Leather in higher trims. Front seats are power-adjustable, and heated front seats are standard, with heated and ventilated options available. A Panoramic Roof and Height-Adjustable Power-Operated Tailgate add to the vehicle’s convenience and luxury appeal.
Exterior Design and Color Options
The exterior of the 2021 Acura RDX is modern and stylish, featuring Jewel Eye® LED Headlights, Chicane LED Daytime Running Lights, and LED taillights. Acoustic Glass Windshield enhances cabin quietness. Color options range from standard colors like Lunar Silver Metallic and Modern Steel Metallic to premium colors including Majestic Black Pearl and White Diamond Pearl, with unique options like Apex Blue Pearl for the A-Spec package. Interior colors and trim options vary depending on the exterior color and package selected, offering personalization to suit different tastes.
Conclusion
The 2021 Acura RDX is a well-rounded luxury SUV that offers a compelling package of performance, features, and sophisticated design. Its detailed specifications, from the powerful 2.0L turbo engine to the advanced AcuraWatch safety suite and luxurious interior amenities, make it a strong choice in its class. Whether for daily driving or longer journeys, the RDX is engineered to provide a premium driving experience.
