LEXUS RX400H2006 · 3.3L HYBRID ELECTRIC

The 2006 Lexus RX400h presents a stable and recently improving maintenance trend, culminating in a completely clean pass on 10 June 2026 at 178,683 miles with zero defects recorded. That outcome is significant given the vehicle's recent history of recurring advisories and a failure. The 2025 test at 171,636 miles still flagged a nearside rear shock absorber with a light oil misting and both rear constant velocity boots severely deteriorated, yet these items appear to have been addressed before the 2026 test. The trajectory from multiple defects in 2025 to a flawless pass in 2026 suggests the last owner invested in genuine repairs rather than simply presenting the car for test and hoping for the best. The mileage accumulation of roughly 8,900 miles per year sits squarely within typical use for a twenty-year-old vehicle. The record shows consistent annual testing with no alarming gaps, and the interval between the 2025 and 2026 tests covers approximately 7,000 miles, which is plausible for a single year. There is no evidence of long periods standing idle or sudden spikes in usage that might indicate fleet or high-intensity use. The odometer progression from 162,821 miles in April 2023 to 178,683 miles in June 2026 is steady and linear, reinforcing the impression of regular, unremarkable daily driving. A buyer should focus their physical inspection on the rear suspension and drivetrain, given the pattern of recurring faults in those areas. The rear shock absorbers were flagged for oil misting in 2025, and rear suspension arm bushes appeared worn in both 2023 and 2025, suggesting this corner of the car has seen sustained stress. The rear constant velocity boots were severely deteriorated at the 2025 test, and while the 2026 pass implies replacement, a buyer should verify the quality of that work by checking for fresh clips, correct grease packing, and no split or weeping rubber. The rear brake discs were noted as worn and pitted in both 2023 tests, and although no defect was recorded in 2025 or 2026, the buyer should measure disc thickness and inspect for lipping or heat cracking, as repeated scoring often indicates caliper drag or delayed pad replacement. The April 2023 failure is the most telling entry in the record. A coolant leak classified as environmentally hazardous, combined with an electronic stability control fault and four tyres worn to the legal limit, points to a period of neglect before that test. The fact that all those items were resolved for the June 2023 retest and have not reappeared since is encouraging, but a buyer should still inspect the radiator, coolant hoses, and expansion tank for residue or white staining. The front shock absorber that was seriously leaking in April 2023 also warrants a close check, as a replacement unit should show no oil film and the corresponding front suspension mounting should be dry and free of corrosion. Overall, the record tells a story of a vehicle that fell into poor condition around 2023 and has since been brought back to a well-maintained standard, but the mechanical history demands a thorough underbody inspection before purchase.