Lexus RX 1999–2003 problems by year and mileage
1st generation (RX 300) · XU10
NHTSA data through 18 October 2026818 complaints, 637 with mileageMethod
Which year is yours? Tap it to see what breaks on it.
The 1999 Lexus RX
Close- Median failure report
- 104,000 mi
- Complaints filed
- 256
- Recalls naming this year
- 2
Most reported on the 1999
- Transmission and driveline158 reports · median 107,000 mi
- Engine and its cooling system26 reports
- Airbag system15 reports
Recall areas Service brakes, hydraulic — foundation components · Exterior lighting — headlights
Check the VIN at NHTSA
The 2000 Lexus RX
Close- Median failure report
- 101,000 mi
- Complaints filed
- 245
- Recalls naming this year
- 0
Most reported on the 2000
- Transmission and driveline163 reports · median 104,000 mi
- Engine and its cooling system21 reports
- Throttle and speed control14 reports
The 2001 Lexus RX
Close- Median failure report
- 105,000 mi
- Complaints filed
- 188
- Recalls naming this year
- 0
Most reported on the 2001
- Transmission and driveline137 reports · median 110,000 mi
- Throttle and speed control21 reports
- Engine and its cooling system13 reports
The 2002 Lexus RX
Close- Median failure report
- 96,000 mi
- Complaints filed
- 100
- Recalls naming this year
- 0
Most reported on the 2002
- Transmission and driveline43 reports · median 100,000 mi
- Throttle and speed control16 reports
- Airbag system12 reports
The 2003 Lexus RX
Close- Median failure report
- too few reports to time
- Complaints filed
- 29
- Recalls naming this year
- 0
Most reported on the 2003
- Transmission and driveline7 reports
- Throttle and speed control6 reports
- Airbag system4 reports
Tiles: each year’s median failure mileage. Latest: the 2001; earliest: the 2002, and the 2001 is 1 year older (part of the gap is age). 1 of these years carries fewer than 30 reports with an odometer reading and shows no median at all, rather than one computed from a handful.
The short answer
“Is the 1999–2003 Lexus RX reliable?”
- Median of reported failures
- 103,000 mi
- 90% of reports came by
- 156,000 mi
- Reports with mileage
- 637
- Recalls
- 2
Most reported
- Transmission and driveline62.1% of complaints · median 106,000 mi
- Engine and its cooling system9.2% of complaints · median 90,000 mi
- Throttle and speed control8.4% of complaints · median 103,000 mi
Documented problems
- Engine Oil Sludge (1MZ-FE)1999–2002
- Automatic Transmission (U140E)1999–2003
Owners filed 818 complaints with NHTSA about the 1999–2003 Lexus RX; the transmission and driveline leads with 62.1% of them, and half of the 637 that record an odometer reading came by 103,000 miles — complaints, not a failure rate.
55% of failures occur beyond 100,000 miles — a wear pattern. The car generally reaches substantial mileage before trouble starts.
Before-you-buy checklist ↓At your mileage ↓Check this VIN — NHTSA ↗
How many miles does a 1999–2003 Lexus RX last?
On the 1999–2003 Lexus RX, half of the 637 complaints that record an odometer reading were filed by 103,000 miles and 90% by 156,000 miles (why that is not a lifespan).
75 reports came in past 150,000 miles and 17 past 200,000 — each one proof that a RX reached that mileage, not that it failed there.
Figure 1 · Lexus RX 1999–2003 · 637 reports with mileage
Mileage at failure
10,000-mile bins, 0 to 200,000 miles, linear scale; tallest bar 69 complaints
- Rest of the range
- Median
- 200,000+ — 17 complaints (2.7%), plotted separately
- 10%
- 58,000
- 25%
- 80,000
- Median
- 103,000
- 75%
- 130,000
- 90%
- 156,000
Show the numbers
| Mileage | Complaints | Share |
|---|---|---|
| 0–10,000 | 10 | 1.6% |
| 10,000–20,000 | 7 | 1.1% |
| 20,000–30,000 | 9 | 1.4% |
| 30,000–40,000 | 9 | 1.4% |
| 40,000–50,000 | 13 | 2.0% |
| 50,000–60,000 | 21 | 3.3% |
| 60,000–70,000 | 38 | 6.0% |
| 70,000–80,000 | 50 | 7.8% |
| 80,000–90,000 | 69 | 10.8% |
| 90,000–100,000 | 60 | 9.4% |
| 100,000–110,000 | 65 | 10.2% |
| 110,000–120,000 | 68 | 10.7% |
| 120,000–130,000 | 58 | 9.1% |
| 130,000–140,000 | 40 | 6.3% |
| 140,000–150,000 | 45 | 7.1% |
| 150,000–160,000 | 18 | 2.8% |
| 160,000–170,000 | 15 | 2.4% |
| 170,000–180,000 | 13 | 2.0% |
| 180,000–190,000 | 6 | 0.9% |
| 190,000–200,000 | 6 | 0.9% |
| 200,000+ | 17 | 2.7% |
Source: NHTSA Office of Defects Investigation, public domain.
Common RX problems, and when they happen
Figure 2 · Lexus RX 1999–2003
When each system fails
Bar: middle half of reports · notch: median · proportional (log) scale (how to read it)
- Hydraulic brake circuit20 reportsmedian 65,000middle half 28,000–85,000
- Seat belts21 reportsmedian 71,000middle half 56,000–120,000
- Electrical system27 reportsmedian 72,000middle half 40,000–109,000
- Engine and its cooling system75 reportsmedian 90,000middle half 62,000–116,000
- Throttle and speed control69 reportsmedian 103,000middle half 59,000–135,000
- Transmission and driveline508 reportsmedian 106,000middle half 87,000–130,000
- Airbag system42 reportsmedian 113,000middle half 61,000–135,000
- Your odometer, once entered below
Ordered by median mileage, earliest first.
All systems in a table
| System | Complaints | Share | Median | 25–75% |
|---|---|---|---|---|
| Transmission and driveline | 508 | 62.1% | 106,000 | 87,000–130,000 |
| Engine and its cooling system | 75 | 9.2% | 90,000 | 62,000–116,000 |
| Throttle and speed control | 69 | 8.4% | 103,000 | 59,000–135,000 |
| Airbag system | 42 | 5.1% | 113,000 | 61,000–135,000 |
| Electrical system | 27 | 3.3% | 72,000 | 40,000–109,000 |
| Seat belts | 21 | 2.6% | 71,000 | 56,000–120,000 |
| Hydraulic brake circuit | 20 | 2.4% | 65,000 | 28,000–85,000 |
| Engine | 19 | 2.3% | 144,000 | 127,000–180,000 |
| Suspension | 16 | 2.0% | — | — |
| Tyres | 16 | 2.0% | — | — |
Known problems with the 1999–2003 RX
Engine Oil Sludge (1MZ-FE) 1999–2002
The 1MZ-FE V6 is central to Toyota's oil-gelling episode: sludge accumulates in the crankcase and under the valve covers, starving oil passages and in bad cases destroying the engine. Toyota handled it through a special policy adjustment giving up to eight years of coverage rather than a recall, and a later class settlement covered roughly 3.5 million 1997-2002 Toyota/Lexus vehicles including the RX 300.
Automatic Transmission (U140E) 1999–2003
Harsh or delayed engagement, slipping and outright failure of the 4-speed automatic are among the most common owner complaints for this generation.
Before you buy a 1999–2003 RX: the 3-minute check
Generated from 637 mileage-tagged complaints, 2 recall campaigns, 2 documented problem areas.
- Run the VIN at nhtsa.gov/recalls. 2 campaigns cover this generation.
- Check engine oil sludge (1MZ-FE) on 1999–2002 cars. What each looks like: Known problems.
- Check automatic transmission (U140E) on 1999–2003 cars.
- Years differ here: from 29 to 256 complaints a year — compare them by model year.
- End with a pre-purchase inspection of this car.
RX problems by mileage: where your car sits
Type your odometer, or read the table.
| System | Middle half of reports, mi | At 60k mi11% below | At 90k mi35% below | At 120k mi66% below | At 150k mi88% below | At 200k mi97% below |
|---|---|---|---|---|---|---|
| Transmission and driveline | 87,000–130,000 | later | in window | in window | earlier | earlier |
| Engine and its cooling system | 62,000–116,000 | later | in window | earlier | earlier | earlier |
| Throttle and speed control | 59,000–135,000 | in window | in window | in window | earlier | earlier |
| Airbag system | 61,000–135,000 | later | in window | in window | earlier | earlier |
| Electrical system | 40,000–109,000 | in window | in window | earlier | earlier | earlier |
| Seat belts | 56,000–120,000 | in window | in window | earlier | earlier | earlier |
| Hydraulic brake circuit | 28,000–85,000 | in window | earlier | earlier | earlier | earlier |
Figure 3 · Lexus RX 1999–2003 · 637 reports with mileage
Share of reports below each mileage
Steps at bin edges (how to read it)
- 60,000 mi — 11% of reports below
- 90,000 mi — 35% of reports below
- 120,000 mi — 66% of reports below
- 150,000 mi — 88% of reports below
- 200,000 mi — 97% of reports below
- Median (the 50% line)
- Your odometer, once entered
Linear axis, same as Figure 1.
1999–2003 Lexus RX recalls (2)
NHTSA records 2 recall campaigns covering vehicles in this generation (what a recall is).
Jan 1999 · 1999 · Service Brakes, HydraulicThis condition can increase the risk of a crash.
The defect. Vehicle description: passenger vehicles equipped with the optional traction control system. Due to improper design of the rear brake tube distribution, if one of the dual brake lines fails when the driver applies the brake, the vehicle will feel unstable…
What can happen. This condition can increase the risk of a crash.
The free fix. Dealers will install modified brake tubes.
Jan 1999 · 1999 · Exterior LightingVehicles following behind may not see the vehicle since no headlights and taillights would be illuminated…
The defect. Vehicle description: passenger vehicles. The headlights and taillights may not automatically illuminate in low ambient light when the headlight switch is placed in the "auto" position.
What can happen. Vehicles following behind may not see the vehicle since no headlights and taillights would be illuminated, increasing the risk of a crash.
The free fix. Dealers will install a modified body electronic control unit.
Crashes, fires and injuries owners reported
Out of 818 complaints against this generation, owners also reported:
- Crashes
- 78 (9.5%)
- Fires
- 13
- Injury reports
- 47
- Fatality reports
- 0
RX problems by model year
The 1999 drew the most complaints of this generation, 256, most of them about the transmission and driveline, and the 2003 the fewest, 29. A typical year drew about 188.
| Year | Complaints | With mileage | Median miles | Most reported | Recalls |
|---|---|---|---|---|---|
| 1999 | 256 | 178 | 104,000 | Transmission and driveline (158) | 2 |
| 2000 | 245 | 187 | 101,000 | Transmission and driveline (163) | 0 |
| 2001 | 188 | 168 | 105,000 | Transmission and driveline (137) | 0 |
| 2002 | 100 | 82 | 96,000 | Transmission and driveline (43) | 0 |
| 2003 | 29 | 22 | under 30 reports | Transmission and driveline (7) | 0 |
What RX owners reported
The contact owns a 1999 Lexus RX300. The contact stated while driving approximately 35 MPH, the brakes failed and could not be depressed to stop the vehicle. The contact was able to drive the vehicle to the side of the road and stopped by shifting into neutral. The contact stated that the check engine warning light…
1999 · 249,000 miles · Brakes
There is a known problem with this year model they are built with a defective transmission... I have not had anything happen to me personally but i am terrified it will. There are plenty of verified situations reported online where the transmissions on this particular year model have been driving and serious events…
1999 · 112,000 miles · Problems owners could not categorise
As i was driving the car started to speed up uncontrollably and would not slow down even with the brakes applied. I had to put it into neutral to apply the brakes but we went from 45 - 85mph in a matter of seconds while driving in 45mph zone in the inner city. When i turned the car back on while in park the…
2003 · 144,000 miles · Throttle and speed control
I bought a car from a private party/dealer only to find out that repairs needed are more than cars worth, then i checked car fax to find out that mileage had been turned back a lot.. This person lists 3-4 cars for sale a week and i can't find any one that wants to help. I know i am stuck with car unfortunately it was…
2001 · 102,000 miles · Transmission and driveline
Built from 637 NHTSA complaints with mileage · snapshot 2026-10-20 · open data · how it is built
Other RX generations
- RX 2004–2009 1,074 reports with mileage, most about body structure
- RX 2010–2015 349 reports with mileage, most about throttle and speed control
- RX 2016–2022 165 reports with mileage, most about the airbag system