1989 Ford Mustang electrical system problems
46 owner complaints filed with NHTSA name the electrical system on the 1989 Ford Mustang — 42% of all complaints for this model year.
What owners report
“Tl* the contact owns a 1989 ford mustang. The contact stated that the ignition key became extremely hot. The contact had not taken vehicle to dealer to get a diagnosed. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure and current mileage was 120,000.”
filed May 15, 2014
“Tl*the contact owns a 1989 ford mustang. Whenever the key is inserted into the ignition to start the engine, the vehicle will not start on the first attempt. The contact must remove the key from the ignition and retry in order for the vehicle to start. He discovered nhtsa campaign id number…”
filed May 28, 2008
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Subject on a wire harness terminal repair kit available for repairing electrical wiring harnesses. *tt
99222 · Service Bulletin/Repair Instructions · issued Oct 18, 1999
Electrical System problems in other Mustang years
| Year | Reports | Share |
|---|---|---|
| 2024 Mustang | 32 | 44% |
| 2022 Mustang | 7 | 14% |
| 2021 Mustang | 6 | 11% |
| 2020 Mustang | 24 | 21% |
| 2019 Mustang | 31 | 22% |
| 2018 Mustang | 30 | 16% |
| 2017 Mustang | 34 | 13% |
| 2016 Mustang | 71 | 19% |
| 2015 Mustang | 66 | 15% |
| 2014 Mustang | 11 | 3% |
| 2013 Mustang | 18 | 7% |
| 2012 Mustang | 21 | 4% |
Other reported problem areas on the 1989 Ford Mustang
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.