AtWhatMileage
Glass · 7 owner reports

Other visibility problem on the 2004 Chevrolet Impala

1 fire 1 of the 7 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 4 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 4
Reports per 1,000 built 0.1 per 1,000
Filed below 36,000 miles 50%
Mention a crash, fire or injury 1
Typical repair $150–$1,400
What it means when it happens Moderate
Rank among this year's problems 35th

When other visibility problem gets reported

There are 7 reports of other visibility problem on the 2004 Chevrolet Impala, 4 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 75,000 miles. It is the 35th most-reported problem on this model year.

The whole distribution

Percentiles of the 4 odometer readings owners gave.
10th25thMedian 75th90th
— — 49,780 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, 1 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 $150–$1,400 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 16 model years of this car. It shows up earliest on the 2011, at a median of 500 miles, and latest on the 2001 at 105,000 miles.

By volume the 2011 carries the most reports, with 26; the 2004 has 7. A mode that appears across most years of a model is usually a design choice rather than a bad batch.

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.

What owners wrote

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

Hvac system in the 2004 impala has a problem. The AC compreser runs in the heat only mode at temps as low as 30 degrees. This causes the inside windows to fog up on the inside and if the vech is left parked outside all the windows will fog up. The only way to keep all windows clean is to open one of the windows a little and run defrost with at least half speed. If you do not do this the front and side windows fog up and it is very hard to cleat the side windows. This problem is causing my gas mileage to go down and making it hard to drive when it is cold out. Dealer said it is ok. The manual says the AC sould only run above 40 and only in defrost or demist modes.*ak

200 miles NHTSA complaint 521263 filed 2005-02-10

Dt*: the contact stated while driving 55mph, smoke was noticed coming from the back rear window. The vehicle was pulled to the side of the road for inspection. The vehicle proceeded to erupt into flames and engulf the vehicle. The fire department extinguished the fire and provided a written report. The fire marshals report stated the fire was electrical and started with a short in the wiring to the rear defroster. The vehicle was inspected by the insurance company and deemed totaled.

30,000 miles NHTSA complaint 577657 filed 2006-03-30

The temperature was 10 below zero and my heater blower quit working causing all of the windows to ice up on the inside. Fortunately, I was able to get the car home safely. I check the fuses, but could find no blown fuses. I took it into the dealer the next day (monday) and, thankfully it was repaired under my g.m. Extended warranty at no cost to me. I had 69,560 miles on the car at that time. *tr

69,560 miles NHTSA complaint 657243 filed 2008-02-12

Also reported on the 2004 Chevrolet Impala

Instrument cluster or gauge failure

271 reports median 60k

Other electrical problem

228 reports median 72k

Other engine problem

55 reports median 98k

Other lighting problem

54 reports median 95k

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 other visibility problem happen on the 2004 Chevrolet Impala?

Across 4 owner reports that included an odometer reading, half were filed by 50,000 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 visibility problem on the 2004 Chevrolet Impala?

7 reports have been filed with NHTSA, about 0.1 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