Problems · by component

2003 Cadillac CTS exterior lighting problems

37 owner complaints to NHTSA about the 2003 Cadillac CTS cite exterior lighting, 12% of all 319 complaints for this model year.

Complaints
37
12% of all complaints
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the exterior lighting

Verbatim from NHTSA complaints, newest first
“TL* THE CONTACT OWNS A 2003 CADILLAC CTS. WHEN THE CONTACT OPENED THE VEHICLE DOORS WITH THE KEY FOB, THE HEADLIGHTS AND OVERHEAD LIGHTS ILLUMINATED EXTREMELY BRIGHT AND THEN DIMMED. IN ADDITION, THE CONTACT STATED THAT THE NAVIGATION SYSTEM FAILED. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED AS A LEGAL ISSUE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE APPROXIMATE FAILURE MILEAGE WAS 49,000.”
Owner complaint to NHTSAFiled Jun 7, 2016Exterior lighting, EquipmentODI 10872979
“TL* THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT THE LICENSE PLATE LIGHT COVERING WAS FRACTURED AND THE THIRD BRAKE LIGHT FAILED TO ILLUMINATE. THE DEALER RECOMMENDED REPLACING THE LICENSE PLATE COVERING, BUT THE THIRD BRAKE LIGHT FAILURE WAS NOT DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 89,000.”
Owner complaint to NHTSAFiled Sep 23, 2014Exterior lighting, StructureODI 10638319
“TL* THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT THE AIR BAG AND ANTI-THEFT WARNING LAMP ILLUMINATED INTERMITTENTLY. ALSO, THE CONTACT MENTIONED THAT THE RUNNING LIGHTS AND THE FOG LIGHTS REMAINED ILLUMINATED AND FAILED TO TURN OFF EVEN WHEN THE KEY WAS REMOVED OUT OF THE IGNITION SWITCH. IN ADDITION, THE CONTACT STATED THAT THE VEHICLE FAILED TO TURN OFF AND THE KEY BECAME LODGED IN THE IGNITION SWITCH. THE BATTERY HAD TO BE DISCONNECTED IN ORDER TO TURN OFF THE VEHICLE. THE VIN WAS NOT AVAILABLE. THE VEHICLE WAS TAKEN TO THE DEALER. THE APPROXIMATE FAILURE MILEAGE WAS 135,000. UPDATED 12/09/14*LJ UPDATED 08/23/2017*CT”
Owner complaint to NHTSAFiled Jun 17, 2014Electrical system, Exterior lightingODI 10598792
“TL* THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED WHILE DRIVING VARIOUS SPEEDS THE THIRD BRAKE LIGHT WOULD NOT ILLUMINATE UPON DEPRESSING THE BRAKE PEDAL AND THE REAR BRAKE LIGHT PLASTIC PANEL HOUSING WAS FAULTY. IN ADDITION, THE CENTER OF THE FRAME EXHIBITED SEVERE CORROSION. THE DEFECT WAS NOT DIAGNOSED NOR WAS IT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE DEFECT. THE FAILURE MILEAGE WAS UNAVAILABLE. UPDATED 09/05/13 *LJ”
Owner complaint to NHTSAFiled Jun 10, 2013Exterior lighting, Structure, Service brakesODI 10515949
“TL* THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT SHE DROVE OVER A ROAD BUMP AND HEARD A LOUD NOISE FROM THE REAR OF THE VEHICLE. THE CONTACT LOOKED IN HER REAR VIEW MIRROR AND NOTICED THAT THE LENS COVER OF THE BRAKE LIGHTS HAD DETACHED FROM THE VEHICLE AND FRACTURED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR INSPECTION. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THERE WAS NO RECALL FOR THE VEHICLE. THE FAILURE MILEAGE WAS 140,000.”
Owner complaint to NHTSAFiled Dec 28, 2012Exterior lightingODI 10490352
“TL* THE CONTACT OWNS A 2003 CADILLAC CTS. THE CONTACT STATED THAT THE REAR TAG PANEL DETACHED FROM THE VEHICLE AND AS A RESULT, WATER WAS ENTERING AND DAMAGING THE WIRING OF THE BRAKE LAMPS. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE ADHESIVE THAT WAS USED TO HOLD THE PANEL WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO DID NOT OFFER ANY ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 103,000.”
Owner complaint to NHTSAFiled May 24, 2012Exterior lightingODI 10459584

Showing 6 of 37 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.