Table 1 shows one common traction control system related problems of the 2006 Volvo S40.
| Problem Category | Number of Problems |
|---|---|
| Traction Control System problems |
All gauges and readings go to zero. Four warning appear on the message board. After stopping and turning off ignition the car will restart with intermittent warnings, or no warnings at all. Upon hitting a bump the error messages changes and the gauges work or don't work. The car has been in for computer "fixes" three times since late 2005.