Reliability & cost of ownership
Lexus RX400H Reliability & Common Problems
How reliable is the Lexus RX400H? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars where on file — then open the year you're shopping for its AI reliability outlook where NHTSA has enough data.
Lexus RX400H problems by model year
271 owner complaints on file across 4 model years, sourced from the federal NHTSA database. We couldn't confirm the NHTSA recall list for those years — check the VIN at nhtsa.gov/recalls.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2008 RX400H | Not confirmed | 57 | No overall rating on file | AI reliability outlook → |
| 2007 RX400H | Not confirmed | 59 | No overall rating on file | AI reliability outlook → |
| 2006 RX400H | Not confirmed | 153 | No overall rating on file | AI reliability outlook → |
| 2005 RX400H | Not confirmed | 2 | No overall rating on file | Recalls & complaints → |
Most-complained-about components
Owner complaints filed with NHTSA against the Lexus RX400H, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- vehicle speed control47 complaints
- electrical system42 complaints
- service brakes37 complaints
- service brakes, hydraulic32 complaints
- structure27 complaints
- steering23 complaints
- service brakes, electric20 complaints
- power train17 complaints