The 2021 Lexus RX is a midsize luxury SUV known for its quiet ride, upscale cabin, and strong reputation for long-term dependability. It’s ideal for drivers who want a comfortable daily commuter and family hauler with premium features and a low-stress ownership experience. This model year continues the fourth-generation RX (2016–2022), benefiting from updates introduced with the 2020 refresh, including modernized tech and available advanced safety and lighting features. In the luxury crossover market, the RX prioritizes comfort and refinement over sporty handling, competing with models like the Acura MDX, BMW X5, and Mercedes-Benz GLE.

1) Engine choices to fit different priorities: the RX 350 uses a 3.5L V6 (295 hp) paired with an 8-speed automatic, while the RX 450h hybrid combines a 3.5L V6 with electric assist for improved efficiency and standard all-wheel drive (AWD on hybrid; FWD or AWD on RX 350). 2) Smooth, quiet road manners: a well-insulated cabin and comfort-focused suspension tuning make the 2021 RX a strong pick for highway commuting and road trips. 3) Safety tech: Lexus Safety System+ is standard and typically includes forward collision warning with automatic emergency braking, lane departure alert with steering assist, adaptive cruise control, and automatic high beams. 4) Upscale interior and cargo versatility: supportive seats, quality materials, and a practical rear cargo area suit families and travelers; a third-row RX L variant was available in this era for occasional extra passengers (tight for adults). 5) Available premium upgrades: depending on trim/packages, shoppers may find features like a panoramic moonroof, Mark Levinson premium audio, ventilated seats, heated rear seats, and a 360-degree camera system.

Searches for “2021 Lexus RX reliability” often highlight that this SUV is generally above average for the segment, but “2021 Lexus RX problems” and “2021 Lexus RX common issues” still come up. Here are issues owners most commonly report: 1) Infotainment/touchpad frustration and glitches: the Remote Touch interface can be distracting and hard to use while driving, and some owners report occasional Bluetooth drops, slow response, or intermittent system behavior. These complaints can appear early in ownership and are often addressed with software updates and phone compatibility checks. 2) Battery-related complaints (especially low-mileage, short-trip use): some owners report weak or dead 12-volt batteries, sometimes within the first 1–3 years, particularly if the vehicle sits or is driven mostly on short trips with lots of accessory use. Testing the battery and charging system is a common fix. 3) Brake feel/noise concerns: a small number of owners mention brake squeal or a “grabby” feel at low speeds. This can relate to pad/rotor wear, surface glazing, or normal characteristics on some setups; inspection and proper bedding or replacement typically resolves it. 4) Minor rattles, wind noise, or interior trim squeaks: not unusual for SUVs over time, but some RX owners report occasional dash/door-area rattles or wind noise at highway speeds. These are typically fit-and-finish adjustments rather than major mechanical failures.