Problems · by component

2000 Mercury Cougar electrical system problems

63 owner complaints to NHTSA about the 2000 Mercury Cougar cite electrical system, 30% of all 211 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
63
30% of all complaints
Crashes
1
Reported by owners
Fires
9
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“TL* THE CONTACT OWNS A 2000 MERCURY COUGAR. THE CONTACT STATED THAT THE BATTERY FAILED AND MULTIPLE WARNING INDICATORS, INCLUDING THE CHECK ENGINE INDICATOR, ILLUMINATED. THE VEHICLE WAS TAKEN TO SEVERAL INDEPENDENT MECHANICS TO HAVE THE BATTERY REPLACED. AFTER MULTIPLE INCORRECT DIAGNOSTICS, IT WAS DETERMINED THAT THE BATTERY CABLE ROUTING WAS DEFECTIVE. THE CONTACT DISCOVERED NHTSA CAMPAIGN NUMBER: 01V031000 (ELECTRICAL SYSTEM); HOWEVER, THE VIN WAS NOT INCLUDED IN THE RECALL. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND DID NOT ASSIST. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 38,600.”
Owner complaint to NHTSAFiled Dec 6, 2019Electrical systemODI 11287532
“LETTER FROM CONGRESSMAN GRIFFITH ON BEHALF OF CONSTITUENT RE ELECTRICAL SAFETY ISSUES WITH 2000 MERCURY COUGAR. *TGW THE CONSUMER STATED HE CONSTANTLY EXPERIENCED WIRING/ELECTRICAL PROBLEMS. *JB”
Owner complaint to NHTSAFiled Nov 12, 2014Electrical systemODI 10654389
“TL* THE CONTACT OWNS A 2000 MERCURY COUGAR. THE CONTACT STATED THAT THE INTERIOR LIGHTS AND HEADLIGHTS FLICKERED. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE WIRING HARNESS HAD FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER INFORMED THE CONTACT THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER 01V031000 (ELECTRICAL SYSTEM). THE FAILURE MILEAGE WAS 63,127 AND CURRENT MILEAGE WAS 67,000.”
Owner complaint to NHTSAFiled Apr 24, 2014Electrical systemODI 10584684
“TL* THE CONTACT OWNS A 2000 MERCURY COUGAR. THE CONTACT STATED THAT THE VEHICLE WAS PREVIOUSLY INCLUDED IN AND REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER: 01V031000 (ELECTRICAL SYSTEM). THE CONTACT STATED THAT THE WINDSHIELD WIPERS, SPEEDOMETER AND THE EXTERIOR LIGHTING BEGAN OPERATING SPORADICALLY AFTER THE VEHICLE HAD BEEN SERVICED UNDER THE RECALL. THE CONTACT ALSO NOTICED SMOKE COMING FROM UNDER THE HOOD. THE VEHICLE ALSO STALLED INTERMITTENTLY. THE VEHICLE WAS TOWED TO THE DEALER FOR DIAGNOSIS AND THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. *TR”
Owner complaint to NHTSAFiled Jul 19, 2013Electrical systemFire reportedODI 10525807
“TL* THE CONTACT OWNS A 2000 MERCURY COUGAR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, THE BATTERY WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL AND THERE WAS BURNING ODOR EMITTED INSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR A DIAGNOSTIC TEST. THE MECHANIC STATED THAT THE BATTERY AND ALTERNATOR WOULD HAVE REPLACED. THE FAILURE OCCURRED A SECOND TIME AFTER THE REPAIR. THE VEHICLE WAS NOT TAKEN BACK TO BE REPAIRED AGAIN. THERE WAS A RECALL UNDER NHTSA CAMPAIGN ID NUMBER 01V031000 (ELECTRICAL SYSTEM:BATTERY:CABLES), THAT MAY BE RELATED TO THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THE VIN WAS NOT INCLUDED IN THE RECALL. THE APPROXIMATE FAILURE MILEAGE WAS 75,000.”
Owner complaint to NHTSAFiled Nov 28, 2011Electrical systemFire reportedODI 10437446
“TL* THE CONTACT OWNS A 2000 MERCURY COUGAR. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, THE VEHICLE SUDDENLY STALLED AS THE WHEEL LOCKED AND THE RADIO SHUT OFF, SIMILAR TO THE FAILURE LISTED UNDER NHTSA CAMPAIGN ID NUMBER: 01V031000 ( ELECTRICAL SYSTEM:BATTERY:CABLES). THE CONTACT WAS UNABLE TO RESTART THE VEHICLE WITHOUT A JUMP. THE MANUFACTURER WAS NOT NOTIFIED NOR WAS THE VEHICLE DIAGNOSED OR REPAIRED. THE CURRENT AND FAILURE MILEAGES WERE 135,288.”
Owner complaint to NHTSAFiled Oct 11, 2011Electrical systemODI 10429458

Showing 6 of 63 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Electrical system: 12v

Free remedy

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH 2.5L V6 ENGINES. THE BATTERY CABLE WAS MISROUTED AND ITS ATTACHMENT TO THE ALTERNATOR CABLE WAS UNDER-TORQUED. IF MISROUTED, THE CABLE COULD CONTACT THE POWER STEERING LINE AND THE INSULATION COULD WEAR, RESULTING IN AN ELECTRICAL SHORT.

Electrical systemReported Feb 6, 2001NHTSA 01V031000
Data from NHTSA Recalls API · synced Nov 10, 2026

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