2009 Ford Mustang Electrical system Problems
- Complaints
- 7about this part
- Share
- 4%of 181 total for the year
- Median mileage
- 40,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the electrical system of the 2009 Ford Mustang, 4% of the 181 complaints for this model year. Where a mileage was given, the median is 40,000 miles. 1 a fire, 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.
“When it rains, water is leaking under the windshield into the duct work and onto the passenger side floor. Heavy rains have caused as much as 5 inches of water to lay on passenger floor. This problem has caused the smart junction box to malfunction and car is not drivable. I now have to purchase a new box and have it programmed, which is very expensive. I have read articles about this happening to other 2009 mustangs. Ford has no recall on this issue. Not only is it expensive to fix, it also is a safety concern because it can cause an electrical fire to ignite within the car. …”
NHTSA complaint #11312159, filed 2020-02, 100,000 miles“I have experienced problems with sensor faults prior to the first incident. Around may 22 I started experiencing water leaking under my dash board first when I thru a cawash. Then it rained and water came again. The tire pressure fault again came on and I was over due for an oil change so I took it in to have it looked at. The tech advised me to get the extended warranty and advised me the leak was a defrost evaporator and the tire pressure sensor was bad and would not be covered by warranty if extended. …”
NHTSA complaint #10531803, filed 2013-07, 43,000 miles“The check engine light. My vehicle (which I purchased new in june 2010) has been to the Ford dealer seven time in an attempt to repair an on-going problem with the check engine light. The Ford tech's have determined that there is a problem with the fuel recovery system however they are unable to repair. I have not driven my vehicle since I picked it up the end of jan. 2011 and the check engine light came on 100 miles from the dealership. I have determined that there is either a problem with the fuel recovery system as the Ford tech's. …”
NHTSA complaint #10383998, filed 2011-02, 1,292 miles“The contact owns a 2009 Ford Mustang. While the vehicle was parked, the contact noticed water dripping from the front passenger side glove box. In addition, the head lamps, interior lighting, driver side turn signal, and hazard lights illuminated independently. The vehicle was taken to an independent mechanic who diagnosed that the generic electronic module needed to be replaced. The vehicle was not repaired due to parts being unavailable. The manufacturer was not notified of the failure. The failure mileage was 40,000.”
NHTSA complaint #10763956, filed 2015-09, 40,000 milesRelated service bulletins
- 11029052Feb 24, 2026Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless entry keypad systems may or may not come with a wallet card containing…
- 10163573Jul 2, 2019Some 2009-2017 Expedition/Navigator, 2009-2014 F-150/Mustang, 2008-2009 Sable, 2008-2019 Taurus/Flex/MKT, 2013-2019 Police Interceptor Sedan/Utility, and 2011-2019 Explorer…
- 10156877Feb 7, 2019Some 2009-2017 Expedition/Navigator, 2009-2014 F-150/Mustang, 2008-2009 Sable, 2008-2019 Taurus/Flex/MKT, 2013-2019 Police Interceptor Sedan/Utility, and 2011-2019 Explorer…
- 10155565Feb 7, 2019Some 2009-2017 Expedition/Navigator, 2009-2014 F-150/Mustang, 2008-2009 Sable, 2008-2019 Taurus/Flex/MKT, 2013-2019 Police Interceptor Sedan/Utility, and 2011-2019 Explorer…
- 10038965Apr 1, 2011Comm-trans lund: some 2009-2011 models may have the air bag inicator flashing with a stored trouble code. This is a software problem.
- 10039053Mar 1, 2011Ford: if there is an intermittent lack of power, surge, or hesitation while driving the brakes will override acceleration.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 25% |
| 2025 | 5 | 26% |
| 2024 | 40 | 48% |
| 2023 | 5 | 33% |
| 2022 | 7 | 14% |
| 2021 | 6 | 11% |
| 2020 | 25 | 21% |
| 2019 | 32 | 21% |
| 2018 | 31 | 16% |
| 2017 | 34 | 13% |
| 2016 | 73 | 19% |
| 2015 | 68 | 15% |
| 2014 | 11 | 3% |
| 2013 | 18 | 7% |
| 2012 | 21 | 4% |
| 2011 | 24 | 5% |
| 2010 | 11 | 4% |
| 2009 | 7 | 4% |
| 2008 | 15 | 4% |
| 2007 | 33 | 5% |
| 2006 | 31 | 7% |
| 2005 | 225 | 32% |
| 2004 | 3 | 3% |
| 2003 | 10 | 7% |
| 2002 | 9 | 8% |
| 2001 | 10 | 6% |
| 2000 | 17 | 5% |
| 1999 | 10 | 5% |
| 1998 | 12 | 5% |
| 1997 | 8 | 5% |
| 1996 | 11 | 4% |
| 1995 | 37 | 6% |
| 1994 | 22 | 6% |
| 1993 | 31 | 31% |
| 1992 | 29 | 42% |
| 1991 | 31 | 40% |
| 1990 | 35 | 41% |
| 1989 | 46 | 42% |
| 1988 | 56 | 52% |
| 1987 | 17 | 45% |
| 1986 | 11 | 37% |
| 1985 | 3 | 19% |
| 1984 | 9 | 50% |
| 1983 | 3 | 60% |
Other parts of the 2009 Ford Mustang
135 complaintsVehicle speed control
22 complaintsBrakes
7 complaintsTransmission and drivetrain
7 complaintsBody and structure
6 complaintsSuspension
6 complaintsOther or unknown
5 complaintsEngine
3 complaintsSteering
3 complaintsExterior lighting
2 complaintsFuel system
2 complaintsTires
2 complaints
← All problems reported for the 2009 Ford Mustang
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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