Reliability & cost of ownership
Trans Tech STH4+9 Reliability & Common Problems
How reliable is the Trans Tech STH4+9? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for its AI reliability outlook where NHTSA has enough data.
Trans Tech STH4+9 problems by model year
3 recall entries and 0 owner complaints on file across 2 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2010 STH4+9 | 2 | 0 | No NCAP test | Recalls & complaints → |
| 2009 STH4+9 | 1 | 0 | No NCAP test | Recalls & complaints → |