2004 Volvo S40 Vehicle speed control Problems
- Complaints
- 4about this part
- Share
- 8%of 48 total for the year
- Median mileage
- 37,171miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the vehicle speed control of the 2004 Volvo S40, 8% of the 48 complaints for this model year. Where a mileage was given, the median is 37,171 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Dashboard went crazy, fading in and out. All panels were unreadable, speedometer, radio, temperature gauge. Car accelerated on its own, without my foot on the pedal. Cd was shot into the backseat landing in my child safety seat. All of this occurred while driving on the highway. In all 3 instances the message indicator stated to not drive the car. I had the car towed to 2 different dealers. The first time they said it was the software and reinstalled. The second time, they replaced the alternator and the car was in the shop for over a week, the third time, the replace the cem module and radio. …”
NHTSA complaint #10195469, filed 2007-07, 25,000 miles“The contact owns a 2004 Volvo S40. While attempting to park the vehicle with the brake pedal depressed, the vehicle accelerated on its own and crashed into a telephone pole. The contact was uninjured. The vehicle was taken to the dealer and they repaired the damages at the cost of $8,000. The cause of the failure could not be determined. The failure mileage was 37,171 and current mileage was 38100 updated 1/5/09 updated 01/09/09.”
NHTSA complaint #10250389, filed 2008-12, 37,171 miles“The contact owns a 2004 Volvo S40. The contact stated that as the vehicle was started, the engine exhibited an abnormal increase in engine rpms up to 4000. The contact then shifted into drive and the vehicle abnormally accelerated to 40 MPH. The contact stated that he drove home with the brakes depressed as the vehicle continued to move forward. When he arrived home, he abruptly jammed down on the brake pedal and shifted to park until the vehicle came to a stop. The manufacturer was contacted and advised that the failure could be caused by a defect in the throttle cable. …”
NHTSA complaint #10386147, filed 2011-03, 85,000 miles“The contact owns a 2004 Volvo S40. The contact stated that the accelerator pedal and the brake pedal became difficult to depress. Also, the contact mentioned that due to the proximity of the pedals, the brake pedal was inadvertently depressed when applying the accelerator pedal. The vehicle was not diagnosed. The manufacturer was notified of the failure. The failure mileage was not available.”
NHTSA complaint #10681587, filed 2015-02Related service bulletins
- 10157889Feb 14, 2019This is a Technical Journal: When sensitive information, like vehicle speed, brake usage, etc. (customer behavoiur information) of a car is required from Volvo Car Corporation…
- 10128164Oct 25, 2017Title BLIS fault tracing . Status Released Status 2012 - Ref No US25788.1.1 en - US Date 04 - 16 Issue 2012 - Issuer - Date 01 - 19 Vida Partner 3 US 7510 Volvo Cars North…
Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 1 | 20% |
| 2008 | 3 | 19% |
| 2007 | 2 | 8% |
| 2006 | 2 | 3% |
| 2005 | 1 | 1% |
| 2004 | 4 | 8% |
| 2003 | 2 | 11% |
| 2002 | 1 | 4% |
| 2001 | 9 | 11% |
| 2000 | 17 | 14% |
Other parts of the 2004 Volvo S40
12 complaintsAir bags
11 complaintsElectrical system
11 complaintsFuel system
8 complaintsEngine cooling
5 complaintsSteering
4 complaintsEngine
2 complaintsExterior lighting
2 complaintsLatches, locks and linkages
2 complaintsOther or unknown
2 complaintsBody and structure
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaints
← All problems reported for the 2004 Volvo S40
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology