AtWhatMileage
Electrical · 5 owner reports

Other electrical problem on the 1999 Lexus Rx300

4 fires 4 of the 5 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.

Only 2 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 5
With an odometer reading 2
Reports per 1,000 built 0.2 per 1,000
Filed below 36,000 miles 0%
Mention a crash, fire or injury 4
Typical repair $250–$2,000
What it means when it happens Moderate
Rank among this year's problems 13th

When other electrical problem gets reported

There are 5 reports of other electrical problem on the 1999 Lexus Rx300, 2 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 85,000 miles. It is the 13th most-reported problem on this model year.

The whole distribution

Percentiles of the 2 odometer readings owners gave.
10th25thMedian 75th90th
— — 103,500 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

Of these reports, 4 a fire is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.

Putting it right typically runs $250–$2,000 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 on other years

The same failure is reported on 4 model years of this car. It shows up earliest on the 2002, at a median of 35,000 miles, and latest on the 2000 at 110,000 miles.

By volume the 1999 is the worst of them, which makes this a problem of this specific year rather than of the model as a whole.

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. 1998 Lexus Rx300 other electrical problem
    no odometer readings given
    —
  2. 1999 (this one) 104k
  3. 2000 Lexus Rx300 other electrical problem 109k
  4. 2001 Lexus Rx300 other electrical problem 50k
  5. 2002 Lexus Rx300 other electrical problem 37k
  6. 2003 Lexus Rx300 other electrical problem 41k

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 own a 1999 lexus rx-300. The keys are defective, resulting in a dangerous condition. Lexus's dealers and its "roadside assistance" personnel have told me that the keys were originally made with metal that is too brittle. As a result, the keys grind down, and eventually the keys can come out while the car is on, or can come out before the lock is disengaged, making it impossible to start the car. Lexus has issued internal technical bulletins, but has never advised its customer of this problem, which results in a $900 repair problem after about 4 years of use. Keys should last more than 4 years, or lexus should be forced to advertise that fact to its customres.

63,000 miles NHTSA complaint 452554 filed 2004-01-30

On january 17th, 2016, I took my '99 lexus rx300 to church, parked the car, and joined the sunday service. An hour after parking the vehicle (during which time it was not running or in use), I was told that there was smoke coming from it and went outside. Within minutes, the front end was bursting in flames. The fire destroyed the entire front portion of the car, including the engine, transmission, tires, and dashboard. I don't know what could have been the cause; it was seemingly random.

144,000 miles NHTSA complaint 1254581 filed 2016-01-21

Also reported on the 1999 Lexus Rx300

Other powertrain problem

67 reports median 104k

Complete transmission failure

52 reports median 111k

Other engine problem

17 reports median 88k

Seat belt or retractor failure

10 reports median 50k

Engine sensor failure

9 reports median 180k

Other brake problem

8 reports median 100k

How far this goes

This page is kept out of search results because 5 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 5 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 other electrical problem happen on the 1999 Lexus Rx300?

Across 2 owner reports that included an odometer reading, half were filed by 105,000 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 other electrical problem on the 1999 Lexus Rx300?

5 reports have been filed with NHTSA, about 0.2 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