1999 Ford Mustang problems & reliability
213 owner complaints filed with NHTSA for the 1999 Ford Mustang, alongside 1 safety recall campaign. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
17 complaints report injuries (22 injured, 2 deaths reported).
Federal crash records (FARS 2020–2023): 1999 Ford Mustang vehicles were involved in 31 fatal crashes with 25 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Air Bags → | 32 | 15% |
| Engine and Engine Cooling → | 31 | 15% |
| Power Train → | 25 | 12% |
| Vehicle Speed Control → | 25 | 12% |
| Service Brakes, Hydraulic → | 22 | 10% |
| Parking Brake → | 21 | 10% |
| Seat Belts → | 19 | 9% |
| Tires → | 11 | 5% |
| Electrical System → | 10 | 5% |
| Steering → | 10 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 60,000 miles (middle 50% between 49,000 and 95,250 miles), based on 36 complaints that included mileage.
Complaints by incident year
What owners report
“I have having issues with wiring. Wide shield wipers don't work, multiple head lights are out and dome light stays on sometimes”
Electrical System · filed Feb 5, 2018
“It was late summer, close to early fall 2017. My two sons, ages 17 and 15, had just gotten out of football practice and were getting into the 1999 mustang to come home. (my 17 year old son, matthew, had been driving for quite awhile, and had no traffic infractions or violations yet either, nor does he now. He has beem…”
Air Bags · filed Jan 25, 2018
“My seat belts do not function well. Sometimes, they retract very slow, lose and sometimes they do not even retract. Also, sometime they get stuck. When I brake hard, they stuck and too tight....on the other hand sometimes they are very lose and doesn't stay tight to my chest, same is the case with the navigator seat…”
Seat Belts · filed Nov 23, 2015
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- SPARK PLUG EJECTION FROM CYLINDER HEAD
Defect Petition DP05005 · opened Sep 22, 2005 · closed Jan 4, 2006
Technical service bulletins
190 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1999 Ford Mustang. The 10 most recent:
Ford: certain 1999-2001 model year vehicles up to 6000 lb gvwr registered in new york and certain 2001 vehicles up to 6000 lb gvwr registered in the state of maine, certified for sale in california-federal emission…
CSP-08B01 · Service Bulletin/Repair Instructions · issued May 16, 2008
Some 1997-2008 vehicles equipped with a 4.6l 2v, 5.4l 2v, or 6.8l 2v engine--spark plug thread repair procedure--not covered under new vehicle limited warranty. *nj this includes f-53 motorhome chassis. Updated 2/23/10…
07212 · Service Bulletin/Repair Instructions · issued Oct 1, 2007
Extended coverage program 05n04 - extended coverage for composite intake manifold. This program is being provided as a settlement to a class action lawsuit. The terms of the settlement extend the coverage of the…
05N04 · Service Bulletin/Repair Instructions · issued Dec 14, 2005
Wds cop kit diagnostic tip - coil on plug (cop) ignition systems - engine misfire or rough running. *tt
041601 · Service Bulletin/Repair Instructions · issued Nov 14, 2005
General (pcm) power train control module programming procedures. *tt
042107 · Service Bulletin/Repair Instructions · issued Dec 13, 2004
Rear window defroster grid/integral antenna diagnosis and repair - terminal tab repair. *tt
04189 · Service Bulletin/Repair Instructions · issued Dec 13, 2004
Exhaust leak - cracked or separated right side exhaust pipe - 3.8l and 3.9l engines. *tt
041003 · Service Bulletin/Repair Instructions · issued Nov 1, 2004
Manual transmission hard to shift into first/reverse from a stop. *tt
04198 · Service Bulletin/Repair Instructions · issued Oct 4, 2004
Engine misfire or running - coil on plug (cop) ignition systems - wds cop kit diagnostic tips. To include various 2005 models. * ar this article 04161 supersedes tsb 03-14-04.
031404 · Service Bulletin/Repair Instructions · issued Aug 23, 2004
Rear window defroster grid/integral antenna diagnosis and repair - terminal tab repair. *tt
041514 · Service Bulletin/Repair Instructions · issued Aug 9, 2004
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 1999 Ford Mustang has 1 NHTSA recall campaign — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1999 Ford Mustang?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 60,000 miles — budget accordingly if the car is approaching that mileage.