2003 Chevrolet Monte Carlo: Reliability Data

Source: NHTSA — 201 complaints
201
Total Complaints
75,500mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
14
Crash Reports

When Do Complaints Happen?

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

40,000 25th Percentile
75,500 Median Mileage
127,856 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
43
ENGINE
31
ENGINE AND ENGINE COOLING
14
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
11
AIR BAGS
8
SERVICE BRAKES, HYDRAULIC
6
ENGINE AND ENGINE COOLING:ENGINE
6
POWER TRAIN:AUTOMATIC TRANSMISSION
5
UNKNOWN OR OTHER
5
EXTERIOR LIGHTING
4

Severity Assessment

14
Crashes
24
Fires
9
Injuries
0
Deaths

Sample Complaint Reports

"CONSTANT HARD UP-SHIFT / DOWNSHIFT ACTION UNLESS CONTINUAL POWER APPLIED. POSSIBLY A TORQUE CONVERTER LOCK-UP. MR"
"THE VEHICLE'S HORN IS UNSAFE, CONSUMER HAS TO APPLY EXCESSIVE FORCE TO THE HORN FOR IT TO WORK. THE DEALERSHIP INDICATED THAT THIS PROBLEM IS CAUSED BY THE AIR BAG. *NLM *JG"
"CONSUMER STATES IN THE COLD WEATHER THE HORN MALFUNCTIONS CAUSING NO USE OF THE HORN WHEN NEEDED. PLEASE PROVIDE ANY ADDITIONAL INFORMATION. TS"

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