"How reliable is the 2003 Ford Mustang?"

"Based on 177 NHTSA complaints, the 2003 Ford Mustang has a median complaint mileage of 10500 miles. The most common issue is ENGINE AND ENGINE COOLING:ENGINE."

"What are common problems with the 2003 Ford Mustang?"

"The most frequently reported component in NHTSA complaints for the 2003 Ford Mustang is ENGINE AND ENGINE COOLING:ENGINE, accounting for a significant portion of the 177 total complaints filed."

2003 Ford Mustang: Reliability Data

Source: NHTSA — 177 complaints

177

Total Complaints

10,500mi

Median Mileage

ENGINE AND ENGINE COOLING:ENGINE

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

2,099 25th Percentile

10,500 Median Mileage

40,665 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE AND ENGINE COOLING:ENGINE

SEAT BELTS

ENGINE AND ENGINE COOLING

UNKNOWN OR OTHER

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

ELECTRICAL SYSTEM

AIR BAGS:FRONTAL

AIR BAGS

VEHICLE SPEED CONTROL

SUSPENSION

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"CONSUMER STATED A NOISE WAS COMING FROM THE REAR END WHEN SHIFTING GEARS. *MR THE ENTIRE TRANSMISSION WAS REPLACED, HOWEVER THE NOISE WAS STILL THERE.*JB"

"CONSUMER STATES THAT WHEN THEY PUSH ON THE CLUTCH AND RELEASE THE GAS VEHICLE WILL STALL OUT. *MR"

"2003 FORD MUSTANG SVT COBRA OWNER WEB SITES ARE WIDELY REPORTING THIS DANGEROUS PROBLEM AS WELL. SEE INTERNET LINK: <HTTP://WWW.SVTPERFORMANCE.COM/FORUMS/SHOWTHREAD.PHP?S=&THREADID=19630>. AMAZINGLY, THE GAS PEDAL APPEARS TO BE CHEAP PLASTIC AND IT FRACTURES QUITE EASILY WITHOUT WARNING. BROKEN ..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28