"How reliable is the 2004 Lincoln Ls?"

"Based on 140 NHTSA complaints, the 2004 Lincoln Ls has a median complaint mileage of 61000 miles. The most common issue is ENGINE AND ENGINE COOLING."

"What are common problems with the 2004 Lincoln Ls?"

"The most frequently reported component in NHTSA complaints for the 2004 Lincoln Ls is ENGINE AND ENGINE COOLING, accounting for a significant portion of the 140 total complaints filed."

2004 Lincoln Ls: Reliability Data

Source: NHTSA — 140 complaints

140

Total Complaints

61,000mi

Median Mileage

ENGINE AND ENGINE COOLING

Top Issue

Crash Reports

When Do Complaints Happen?

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

31,000 25th Percentile

61,000 Median Mileage

86,500 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE AND ENGINE COOLING

ELECTRICAL SYSTEM

VEHICLE SPEED CONTROL

POWER TRAIN:AUTOMATIC TRANSMISSION

ENGINE AND ENGINE COOLING:ENGINE

AIR BAGS

POWER TRAIN

AIR BAGS:SIDE/WINDOW

FUEL SYSTEM, GASOLINE

EQUIPMENT:APPLIANCE:AIR CONDITIONER

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"THE HORN ON MY CAR DOES NOT BLOW AT TIMES. THE DEALER SAID TO SIMPLY PUSH HARDER. DEALER CHECKED ANOTHER SIMILAR CAR ON THE LOT AND SAID IT WAS THE SAME. WHEN THE HORN IS NEEDED IN TRAFFIC SITUATIONS YOU DON'T HAVE TIME TO THINK "PUSH THE HORN HARDER". MY CAR IS NEW AND THIS SHOULD NOT BE A PRO..."

"WHILE DRIVING, THE WARNING LIGHTS ON THE DASHBOARD SUDDENLY ILLUMINATED, AND THE EMERGENCY BRAKES ENGAGED WITHIN SECONDS. WHEN THIS OCCURRED THE VEHICLE IMMEDIATELY WENT TO A COMPLETE STOP. THE VEHICLE WAS FLAT BEDDED TO THE DEALERSHIP, AND INDICATED THAT THIS PROBLEM OCCURRED BECAUSE OF A COMPUTER..."

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