Replacement Guide / Cadillac / CTS / 2003
Replacement guide
2003 Cadillac CTS
Owner-reported component and symptom data for this model year.
What are you trying to fix?
Replacement-related components reported for this vehicle
12 owner reports involving the headlights
View replacement guide7 owner reports involving the throttle body
View replacement guide3 owner reports involving the brake rotor
View replacement guide3 owner reports involving the timing belt
View replacement guide2 owner reports involving the radiator
View replacement guide2 owner reports involving the brake caliper
View replacement guide2 owner reports involving the tie rod
View replacement guide1 owner report involving the battery
View replacement guide1 owner report involving the brake pads
View replacement guide1 owner report involving the strut
View replacement guide1 owner report involving the brake lights
View replacement guide1 owner report involving the water pump
View replacement guide1 owner report involving the thermostat
View replacement guide1 owner report involving the ignition coil
View replacement guide1 owner report involving the oxygen sensor
View replacement guide1 owner report involving the timing chain
View replacement guideBrowse by system
Fuel / engine
- Throttle Body — 7 owner reports
- Timing Belt — 3 owner reports
- Ignition Coil — 1 owner report
- Oxygen Sensor — 1 owner report
- Timing Chain — 1 owner report
Cooling / HVAC
- Radiator — 2 owner reports
- Water Pump — 1 owner report
- Thermostat — 1 owner report
Brakes
- Brake rotor — 3 owner reports
- Brake caliper — 2 owner reports
- Brake pads — 1 owner report
Steering / suspension
- Tie rod — 2 owner reports
- Strut — 1 owner report
Lighting / visibility
- Headlights — 12 owner reports
- Brake lights — 1 owner report
About this data
Component evidence comes from structured complaint categories and reviewed component mentions in complaint summaries. Owner-situation evidence comes from reviewed symptom language in complaint summaries. Reports are signals, not diagnoses.
How to read the counts
Counts are distinct owner reports involving a canonical component. They are not a failure rate, probability, or share of vehicles sold. A complaint involving a component does not prove that component caused the problem. Parent NHTSA system buckets are not counted as the part itself.