2007 Lexus Rx350: what breaks, and at what mileage

What breaks on the 2007 Lexus Rx350

Owners have reported 35 named failure modes on the 2007 Lexus Rx350, and the three most-reported carry 34% of everything filed, which is an unusually even spread for one model year.

Other engine problem leads with 28 reports, about 0.7 per 1,000 vehicles and with the middle half of reports between 76k to 122,500 miles.

Airbag warning light or occupant sensor fault follows with 22 reports, usually reported between 88k to 120,000 miles.

Other speed control problem follows with 22 reports, usually reported between 29k to 90,000 miles.

By system, the reports fall mostly into engine (49), airbag (29) and adas (23).

How bad it is when it goes

Across the named modes, 22 mention a crash and 8 an injury. Those are the words owners used in their own complaints, and NHTSA does not verify them, but they are the closest thing in this data to a measure of what a failure actually did.

The average severity weight across every report on this year is 4.70, where a stalled engine or a failed airbag weighs many times more than a rattling trim panel, and a figure this high means the reports are dominated by failures with safety consequences rather than annoyances. The weighting is set out in full on the methodology page.

What the top failures cost to put right, as editorial estimates for an independent US shop rather than figures from NHTSA: other engine problem at $300–$4,000, airbag warning light or occupant sensor fault at $300–$1,600, other speed control problem at $250–$2,000 and steering rack, gear or tie rod failure at $700–$2,600. Dealer labour, a seized bolt or a part that is no longer made can push any of these past the top of its range.

29% of the reports on this year sit in the engine, transmission, drivetrain or cooling systems — the four where a repair bill is usually four figures.

How often, against how many were built

Scaled by an estimate of how many of these cars exist, the 2007 Lexus Rx350 draws about 4.9 per 1,000 vehicles, which puts it in the 81st percentile of complaint rates among 2007 vehicles we can rate.

That denominator is the weakest number on the page and it is fair to say so plainly. Rate per 1,000 uses a fleet-size estimate derived from recall paperwork for this exact model year. It is a lower bound.

The working figure is 42,743 vehicles. If the true number is twice that, every rate on this page is half what it says; the ranking against other 2007 vehicles, which is what the risk score uses, is far more robust than the rate itself.

Recalls on the 2007 model year

NHTSA has issued 1 recall campaign covering the 2007 Lexus Rx350, affecting an estimated 42,743 vehicles. A recall is a different kind of evidence from a complaint: it is the regulator and the manufacturer agreeing that something has to be fixed, and the fix is free for as long as the car exists.

The campaigns cover vehicle speed control:accelerator pedal. Whether the work was actually done on the car in front of you is a question only the VIN can answer, and the manufacturer or NHTSA will answer it free.

Recalls also distort complaint counts. Publicity about a campaign reminds owners that complaining is possible, so reports for a recalled component often spike after the recall rather than before it.

Better and worse years of the same car

High risk for a 2007 — 279th riskiest of the 365 2007 vehicles we can rate. Every score on this site is a rank inside its own model year, which is what makes a 2004 and a 2019 comparable at all.

Across the 13 model years of this car that carry enough reports to score, 2013 comes out best at 64 and 2011 worst at 80, with 2007 itself at 64.

No other year of this model scores meaningfully better than 2007, so if this generation is what you want, the year is not the lever.

Within the 2004–2011 generation specifically, 2007 is the strongest year at 64 and 2011 the weakest at 80.

What the numbers say to check

The mileages below are where the first quarter of reports for each mode had already been filed, which makes them the point at which a fault is worth looking for rather than the point at which it happens: other speed control problem from about 29k, other body or interior problem from about 51k, steering rack, gear or tie rod failure from about 58k and misfire or rough idle from about 61k.

On a 2007 Lexus Rx350 with more miles than that on it, the useful question to put to a seller or a mechanic is whether other speed control problem has been dealt with, and if so with what parts and at whose expense. A car that has already had the repair is in a different position from one that has not.

None of this is a diagnosis. It is a list of what other owners of the same model year reported, ordered by when they reported it, which is a good place to point an inspection and a poor place to stop.

The limits of complaint data

210 owner reports; fleet size estimated from this year's own recall paperwork. Every count on this page is therefore a floor: it is the number of owners who went to the trouble of filing with a federal agency, which is a small and self-selected fraction of the owners who had the fault.

Of those 210 reports, 172 carried an odometer reading, so the mileages here describe 82% of the sample rather than all of it. Owners also round: readings pile up on multiples of ten thousand, which is why this site publishes "about 90,000 miles" and not "91,438".

Named failure modes come from matching phrases in the complaint text, so a badly worded complaint can land in the wrong bucket. The effect washes out across hundreds of reports and does not wash out across five.

And nothing here predicts what one car will do. These are other people's complaints, filed years apart, on cars maintained by strangers. Read the page as a map of where this model year has previously gone wrong, then have the specific car in front of you inspected.