Volvo S40 owners have reported 1 traction control system related problems since 1996. Table 1 shows the 1 most common traction control system problems. The number one most common problem is related to the vehicle's traction control system (1 problem). For details of each of the problem category, use the links in the table.
| 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.