AtWhatMileage
Electrical · 7 owner reports

Alternator or charging system failure on the 2003 Lincoln Navigator

Only 7 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.

Reports of this failure 7
With an odometer reading 7
Reports per 1,000 built 212 per 1,000
Filed below 36,000 miles 100%
Mention a crash, fire or injury 0
Typical repair $450–$1,600
What it means when it happens High
Rank among this year's problems 5th

When alternator or charging system failure gets reported

There are 7 reports of alternator or charging system failure on the 2003 Lincoln Navigator, 7 with a mileage attached. That is too few to place the failure on the odometer with any confidence.

A part like this is normally expected to survive 98,000 miles. It is the 5th most-reported problem on this model year.

The whole distribution

Percentiles of the 7 odometer readings owners gave.
10th25thMedian 75th90th
— — 1 miles — —

Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.

What a percentile can and cannot tell you here

These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.

What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.

Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.

What happens, and what it costs

Putting it right typically runs $450–$1,600 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.

The same failure, every year of the Lincoln Navigator

If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.

Median
  1. 2000 Lincoln Navigator alternator or charging system failure 169k
  2. 2003 (this one) 1
  3. 2006 Lincoln Navigator alternator or charging system failure 48k
  4. 2019 Lincoln Navigator alternator or charging system failure
    no odometer readings given
    —
  5. 2025 Lincoln Navigator alternator or charging system failure
    no odometer readings given
    —

Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens

What owners wrote

Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.

I purchased my vehicle brand new in january of 2003. I have had numerous problems with the vehicle since day 1.the entire computer had to be changed. The truck stalled on me at highway speed. It took over 2 1/2 weeks to get my vehicle back.here is a list of the other problems I have had. The rear vent motors have been changed . I had my windows stuck open with half of my electical system out for over four days due to the problem. The side view mirror motor had to be changed. The power running boards have never worked properly and the dealer can't find the problem. All four wheels had to be changed due to peeling. A new alternator had to be installed which left my vehicle dead without warning. The cd changer had to be replaced. The entire navigation system had to be replaced. The coil had to be changed three times. Which once again died at highway speed on me. I was nearly hit by a semi truck from behind. I thought for sure that my family and I were going to be seriously injured. It is at the dealer right now getting looked at. Twice while being at the dealer for service, my vehicle was hit needing repair. The list goes on. As you…

1 miles NHTSA complaint 476732 filed 2004-05-24

I purchased my vehicle brand new in january of 2003. I have had numerous problems with the vehicle since day 1.the entire computer had to be changed. The truck stalled on me at highway speed. It took over 2 1/2 weeks to get my vehicle back.here is a list of the other problems I have had. The rear vent motors have been changed . I had my windows stuck open with half of my electical system out for over four days due to the problem. The side view mirror motor had to be changed. The power running boards have never worked properly and the dealer can't find the problem. All four wheels had to be changed due to peeling. A new alternator had to be installed which left my vehicle dead without warning. The cd changer had to be replaced. The entire navigation system had to be replaced. The coil had to be changed three times. Which once again died at highway speed on me. I was nearly hit by a semi truck from behind. I thought for sure that my family and I were going to be seriously injured. It is at the dealer right now getting looked at. Twice while being at the dealer for service, my vehicle was hit needing repair. The list goes on. As you…

1 miles NHTSA complaint 476733 filed 2004-05-24

I purchased my vehicle brand new in january of 2003. I have had numerous problems with the vehicle since day 1.the entire computer had to be changed. The truck stalled on me at highway speed. It took over 2 1/2 weeks to get my vehicle back.here is a list of the other problems I have had. The rear vent motors have been changed . I had my windows stuck open with half of my electical system out for over four days due to the problem. The side view mirror motor had to be changed. The power running boards have never worked properly and the dealer can't find the problem. All four wheels had to be changed due to peeling. A new alternator had to be installed which left my vehicle dead without warning. The cd changer had to be replaced. The entire navigation system had to be replaced. The coil had to be changed three times. Which once again died at highway speed on me. I was nearly hit by a semi truck from behind. I thought for sure that my family and I were going to be seriously injured. It is at the dealer right now getting looked at. Twice while being at the dealer for service, my vehicle was hit needing repair. The list goes on. As you…

1 miles NHTSA complaint 476734 filed 2004-05-24

Also reported on the 2003 Lincoln Navigator

Other suspension problem

22 reports median 76k

Air suspension failure

20 reports median 50k

Other body or interior problem

17 reports median 48k

Other electrical problem

12 reports median 28k

Other engine problem

7 reports median 50k

Other powertrain problem

7 reports median 44k

How far this goes

This page is kept out of search results because 7 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.

Complaints are voluntary, so 7 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.

Questions this page answers

At what mileage does alternator or charging system failure happen on the 2003 Lincoln Navigator?

Across 7 owner reports that included an odometer reading, half were filed by 1 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.

How common is alternator or charging system failure on the 2003 Lincoln Navigator?

7 reports have been filed with NHTSA, about 212 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.

What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars

Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed