2004 Pontiac Sunfire: Reliability Data

Source: NHTSA — 41 complaints
41
Total Complaints
48,275mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
4
Crash Reports

When Do Complaints Happen?

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

16,750 25th Percentile
48,275 Median Mileage
94,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
7
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
6
ENGINE
3
ENGINE AND ENGINE COOLING
2
UNKNOWN OR OTHER
2
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
2
STRUCTURE:BODY
2
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
1
EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
1
EQUIPMENT:ELECTRICAL
1

Severity Assessment

4
Crashes
1
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"WHILE DRIVING AT 50 MPH MUFFLER FELL OFF INTO ONCOMING TRAFFIC. *AK"
"WHEN STOPPING AT A STOP LIGHT VEHICLE STALLED, AND THE BATTERY LIGHT CAME ON. *AK"
"WHEN STOPPING AT A STOP LIGHT VEHICLE STALLED, AND THE BATTERY LIGHT CAME ON. *AK"

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