Electrical: navigational system(global positioning system)
Risk. AN OVERHEATED BATTERY COULD LEAD TO A FIRE.
NHTSA has logged 58 owner complaints about the 2006 Volvo S40, most often about the electrical system. It is covered by 3 safety recalls.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through August 19, 2022. Updated daily. Photo: IFCAR, Public domain.
58 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 24 | 0 |
| Structure | 9 | 0 |
| Fuel/propulsion system | 7 | 0 |
| Visibility | 7 | 0 |
| Engine | 5 | 0 |
| Air bags | 4 | 0 |
| Engine and engine cooling | 4 | 1 |
| Service brakes, hydraulic | 4 | 0 |
| Electronic stability control (ESC) | 2 | 0 |
| 10 other systems | 12 | 1 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. AN OVERHEATED BATTERY COULD LEAD TO A FIRE.
Risk. IF THIS OCCURS, THE CHECK ENGINE LIGHT MAY ILLUMINATE.
Risk. THIS MAY POTENTIALLY RESULT IN FUEL LINE LEAKAGE.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Volvo.
74kmiles, median
Based on the odometer reading in 20 electrical system complaints. 70% were reported before 100,000 miles.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the S40 median. How we score
2006 Volvo S40 4-DR. w/SAB in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
AFTER A LONG PERIOD OF RAIN, WATER POOLED ON REAR DRIVER AND PASSENGER FLOOR. WINDOWS WOULD NOT FUNCTION, DOOR LOCKS WOULD NOT FUNCTION, TURN SIGNALS DIDN'T WORK. INSTRUMENT PANEL FLASHED WARNINGS OF ENGINE PROBLEMS, BRAKE FAILURE, AIRBAG PROBLEMS. OFTEN LOST ENTIRE PANEL WHILE VEHICLE WAS BEING…
WHILE DRIVING DOWN THE ROAD AT APPROXIMATELY 50 MPH I NOTICED MY DIM ( DRIVER INFORMATION MODULE) HAD COMPLETELY STOPPED WORKING. I WAS UNABLE TO READ MY SPEEDOMETER, RPM, FUEL LEVEL, AND ENGINE TEMPERATURE WHILE THE CAR WAS STILL RUNNING. AFTER RESEARCHING THIS ONLINE, IT APPEARS THAT THIS SEEMS…
TL* THE CONTACT OWNS A 2006 VOLVO S40. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 40 MPH, THE VEHICLE STALLED AND FAILED TO RESTART. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, WHO DIAGNOSED THAT THE SUN ROOF DRAINAGE SYSTEM WAS CLOGGED AND WATER ENTERED INTO THE VEHICLE WHICH…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.