2004 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2004 Lexus RX has 3 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues with published estimates, repair costs range from $250 to $2,200. DIY maintenance guides at au7o.io.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2006 AVALON, MODEL YEAR 2004-2006 HIGHLANDER, MODEL YEAR 2004-2006 LEXUS RX, AND MODEL YEAR 2006 LEXUS GS AND IS VEHICLES. BRAKE FLUID CONTAINING POLYMERS IS USED THAT ACTS AS LUBRICANTS FOR CERTAIN BRAKE SYSTEM COMPONENTS. IF REPLACEMENT BRAKE FLUID IS USED THAT DOES NOT CONTAIN SUCH POLYMERS, OR THAT CONTAINS ONLY SMALL AMOUNTS, A PART OF THE RUBBER SEAL LOCATED AT THE REAR OF THE BRAKE MASTER CYLINDER MAY BECOME DRY, AND THE SEAL MAY CURL DURING MOVEMENT OF THE PISTON. IF THIS OCCURS, A SMALL AMOUNT OF BRAKE FLUID COULD SLOWLY LEAK FROM THE SEAL INTO THE BRAKE BOOSTER.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2004 Lexus RX has 3 documented issues. The most frequently reported are: Rear Main Seal / Engine Oil Leak at Timing Cover and Lower Engine Seals, Steering Intermediate Shaft Clunk and Loose Steering Feel Over Bumps, Power Steering Pressure Hose Leak and Pump Whine from Fluid Loss. None are rated critical, but regular maintenance is recommended.
The 2004 Lexus RX has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Lexus RX issues range from $250 to $2,200, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
RX330 owners frequently report persistent engine oil leaks that are often diagnosed at the rear main seal, timing cover area, or other lower engine sealing surfaces. The leak may start as minor seepage but can progress to oil spots on the driveway, burning oil odor, and contamina… Repairs typically run $700-$2,200. Severity: medium.
Second-generation RX330 models commonly develop a clunk or knock felt through the steering column, especially at low speed over small bumps or during quick steering inputs. Lexus issued service information for intermediate steering shaft noise, and owners often describe the sensa… Repairs typically run $350-$900. Severity: medium.
Both RX300 and RX330 generations commonly develop power steering fluid leaks, especially from the high-pressure hose and related line connections. Owners report red fluid on the driveway, groaning or whining while turning, and heavier steering effort as fluid level drops. If igno… Repairs typically run $250-$900. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
