2003 Lincoln LS Electrical system Problems
- Complaints
- 11about this part
- Share
- 16%of 68 total for the year
- Median mileage
- 39,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the electrical system of the 2003 Lincoln LS, 16% of the 68 complaints for this model year. Where a mileage was given, the median is 39,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Car goes into fail safe each and every time it is driven. It did so 19 times today. I connected a code reader which identified the problems as being related to the throttle control and the throttle body. I purchased the car 1 1/2 months ago. Prior owner had the throttle body replaced with a new mopar unit 4 months ago/ 2000.miles ago. Don't want to replace it again since this is likely not the problem.”
NHTSA complaint #11043120, filed 2017-11, 75,100 miles“Took transmission for repair. Transmission shop could not load new Lincoln software on new computer module. It has been two weeks at rowlett transmission shop and now the engine side of the new computer installed will not clear. Says there in an engine issue now. There was no engine issue before I took it to get the transmission fixed.”
NHTSA complaint #10875443, filed 2016-06, 80,000 miles“Myself, and just about all Lincoln LS owners are having problems with the car computer system. Etc - message cause the car to go into a fail-safe mode. Been to the shop several times but the same problem still exist. On the web it appears all Lincoln LS are having the same problem. I own a 2003 Lincoln LS.”
NHTSA complaint #10241171, filed 2008-09, 53,000 miles“Car starts and runs rough, then surges forward. Have to hold the brake hard. Car then stalls and gives etc engine failure . Upon restart car will run fine for a while. Dealer cannot identify the problem, as it does not consistently throw a code, replaced the coils”
NHTSA complaint #10345128, filed 2010-07, 78,000 miles“Driving vehicle on an interstate highway at 70mph alignment stopped working, the external and internal lights went out, engine, power steering, power brakes stopped working for 5 or more seconds. This occurred twice within five minutes at 4:00 am leaving the vehicle rolling down the highway in the dark.”
NHTSA complaint #10081061, filed 2004-07, 11,500 milesRelated service bulletins
- 10048099Aug 1, 2012Ford/lincoln/mercury: may have sludge buildup in throttle body leading to less airflow or engine idling rpm fluctuation and hard starts or battery disconnect or dead battery…
- 10026402May 20, 2008Ford/lincoln mercury: certain 2003-2005 model year lincoln ls and ford thunderbird vehicles equipped with 3.9l engine with extended warranty coverage on ignition coil assemblies…
- 10013371Jun 7, 2005Malfunction indicator lamp (mil) and electronic throttle control (etc) lamps on with both diagnostic trouble code (dtc) p2106 and p2135.
- 10013321Jan 1, 2005Am/fm and cellular phone reception interference - service tip.
- 10013116Sep 6, 2004Malfunction indicator lamp (mil) illuminated - system lean diagnostic trouble codes (dtc's) - service tips. Various models including 2004 f-series.
Electrical system: other model years
Other parts of the 2003 Lincoln LS
20 complaintsBrakes
8 complaintsEngine cooling
8 complaintsEngine
7 complaintsSuspension
7 complaintsVehicle speed control
7 complaintsAir bags
6 complaintsSeats
6 complaintsSteering
6 complaintsWheels
6 complaintsFuel system
5 complaintsEquipment
3 complaints
← All problems reported for the 2003 Lincoln LS
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology