1991 Ford Aerostar: Reliability Data

Source: NHTSA — 282 complaints
282
Total Complaints
ELECTRICAL SYSTEM:IGNITION:SWITCH
Top Issue
28
Crash Reports

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM:IGNITION:SWITCH
32
POWER TRAIN:AUTOMATIC TRANSMISSION
21
VEHICLE SPEED CONTROL
18
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
18
ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD
12
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
12
ELECTRICAL SYSTEM:IGNITION
12
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
11
EQUIPMENT:APPLIANCE:AIR CONDITIONER
9
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
8

Severity Assessment

28
Crashes
78
Fires
31
Injuries
1
Deaths

Sample Complaint Reports

"TRANSMISSION IS OUT. TT"
"SPARE TIRE RUINED LUG NUTS AND HUB. TT"
"UPON SIDE IMPACT, REAR HATCH LATCH DOOR CAME OPEN, EJECT OWNER'S WIFE FROM REAR OF THE VEHICLE, RESULTING IN INJURIES. TT"

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