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How Many Miles Can A Lexus RX350 Last? (Answered)

How many miles can a Lexus RX 350 last? When you’re in the market for a new or second-hand RX 350, that’s, of course, a very reasonable question to ask. After all, you’re probably looking to get the most bang for your buck. In this blog, we’ll look at this question in great detail but first, let’s start with a quick answer:

On average, a Lexus RX 350 lasts between 200.000 – 230.000 miles. An RX 350 needs to go to the garage for unscheduled repairs about 0.44 times per year, with an 8% chance of the problem being severe. Furthermore, RX 350 owners spend an average of $550 per year on repair costs.

Having said that, we’re certainly not done. Below we’ll first explain in more detail how many miles an RX 350 can last. After that, we’ll also show you how much an RX 350 costs per year and which production years are the most and least expensive. Furthermore, we also discuss the common problems that the car can have. Read on!

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How Many Miles Can A Lexus RX 350 Last?

Asking the question if Lexus is reliable or not? It’s a fact that Lexus is reliable; in fact, it’s at the top of reliability. But you would want proof, and that’s exactly why we are here. This question can’t be answered by looking at computer-generated estimates or by looking at the odometer of the oldest Lexus RX 350 you could find.

It requires a more sophisticated approach. So we have looked at over 7,000 Lexus RXs that were on sale in the US market and calculated the percentage that was able to cross the 150k mile mark. Our analysis is based on facts, not computer-generated estimates.

After we have compiled all the data, the highest miles that the Lexus RX 350 can last came out to be 250k+ miles on average.

This is the number after which the Lexus RX 350 would start giving up a little and would want to go to heaven, and if you are in the market to buy it used, you should definitely stay away from those close to this number.

Amount Of MilesPercentage Of Cars
Cars With 150.000+3.85%
Cars With 100.000 – 149.00010.96%
Cars With 45.000 – 99.99930.32%
Cars With 0 – 44.99954.87%

On our reliability scales, the percentage of cars crossing the 150k mile mark should be more than 3%. If, after rigorous testing, we get to see a number above 3%, then we would know that the vehicle is reliable, and here we got 3.85% which means that the Lexus RX 350 is reliable.

Although this number is not amazing, it sure does portray a picture that can be considered reliable. But because more than 50% of people want to sell their Lexus RX 350 when it hasn’t even crossed the 45k mile mark, this data suggests that there might be some underlying problem. We have further tests that will make sure if it’s reliable.

How Reliable Is A Lexus RX 350 Compared To Its Competitors?

The first thing that will decide whether or not it’s truly reliable is where it stands among the competitors. The competition will give us a broader picture of what we should expect from a vehicle like the Lexus RX 350 and what numbers are actually good in terms of reliability.

ModelSample SizeCars With 150.000+ Miles% Percentage Of Cars With 150.000+Highest Mileage
Lexus RX 35072922813.85%250000
Acura MDX50673687.26%290000
BMW X553251332.50%250000
Audi Q73336601.80%180000
Jaguar F-Pace115280.69%110000

So it turns out that the Lexus RX 350 is not a bad choice at all. The competitors are doing much worse, so much so that they aren’t even crossing the 150k mile mark. But, it’s to be noted that the percentage is low per the year they were manufactured. Older vehicles will inevitably have higher percentages.

But there’s a but in this situation. These are so-called SUVs, and for them to be considered reliable, they should have at least shown us percentages close to 5%, which never happened in any of the competitors. This category is probably not used as much as a daily one, which might be why they have such poor percentages.

When we analyzed how old the vehicles are, the data seemed similar to one another. Vehicles of this category are showing about the same results, but the maintenance cost would be making the biggest difference. If we look at sheer numbers, then the Acura MDX would win this battle of reliability, and the RX350 is a runner-up in this reliability test.

Do you want to know more about how this car compares to other cars regarding the expected miles it can last? Read more about that in this article: How Many Miles Can A Car Last? (156 Models Analyzed!)

How Reliable Is A Lexus RX 350 Compared To Other Lexus?

Knowing how the Lexus RX 350 performs among its own brethren is valuable, so we have done exactly that. We have made the comparison of the RX 350 with its own badge mates.

This data will give an idea of how reliable Lexus is in general, and on top of that, we will be able to find out how reliable Lexus RS 350 is against other Lexus.

ModelSample SizeCars With 150.000+ Miles% Percentage Of Cars With 150.000+Highest Mileage
Lexus RX 35072922813.85%250000
Lexus IS 350600203.33%230000
Lexus ES 35051331623.16%250000
Lexus LS145220013.77%350000
Lexus NX(2015 onwards)3624150.41%200000
Lexus GS15441217.84%270000

From the data, it’s obvious that the most reliable Lexus is the Lexus LS. Not only did it have the highest percentage crossing the 150k mile mark, but it also had the highest mileage on average.

The second most reliable would be the Lexus GS. Both the GS and IS were introduced at about the same time, but the GS had performed much better than the Lexus IS and cost more than the Lexus IS. All the other Lexus were about the same in terms of reliability, including the Lexus RX 350.

How Much Does Maintenance Cost Per Year?

A reliable car would be the one that wouldn’t cost you a lot on maintenance. Many unreliable cars have been able to cross very high mileages because a lot of money has been put into repairs and maintenance, such as Jaguar.

But you don’t want that, you need something that will go a long way and wouldn’t cost a lot to maintain, and Lexus RX 350 is worth the price.

Model YearAnnual Maintenance Cost

You would be spending $550 on average per year on maintenance. We will get into the details on which models have a high maintenance cost and the Lexus RX 350 models that you stay away from.

Lexus RX 350 Common Problems

NOTE: Before buying a used car, I always like to make sure the car isn’t having any problems that I should be aware of. The easiest way to do this is by buying an OBD2 scanner. These scanners can easily be plugged into any car you’re interested in, and they’ll give you a rundown of potential problems.

Personally, I like this one on Amazon because it has a lot more functions than basic OBD2 scanners. This particular one also runs tests on your emission system and tests if you’re fuel mix is optimal (or if your engine is misfiring), so you have a complete understanding of how the car’s performing.

Also read: 10 Common Problems Of A Lexus RX350

Oil Leaks And Loss Of Oil Pressure

Up to 2015, there have been horror stories of black engine blood spilling on the road while driving. The remnants would cover the whole engine bay, and if the car were parked, you would see pools of that black engine blood. In short, the oil lines are known to burst as they had a manufacturing fault.

You could prevent this from happening by asking the seller if the oil line was replaced or not. In some cases, even the replacement would have the same issue. So make sure that it has a revised oil line that wouldn’t burst and cause massive oil leaks.

You should never drive a car that has leaked engine oil because a low oil level can cause the engine to blow up, and it will go to heaven because of that, costing you thousands of dollars. This replacement of the oil cooler line will cost you about $250.

Failure of AC Amplifier

If the AC error message appears on the dash, it might be flashing as well, then most of the time, it’s the AC amplifier issue. This culprit is known to cause this problem, and the diagnosis will cost you about $70. This is a problem that will cost you $500+ to fix. This problem has been reported in models up to 2013.

Issues with GPS, Radio, and Heater Operations

If you are experiencing problems with the Lexus RX 350 infotainment system, you can resolve it by having a software update.

Most of the time, you need the latest software that will handle the glitches and will solve the problem by updating it to the latest algorithm. It’s not that common, but it’s not rare either. General diagnosis is going to cost you about $120.

Faulty Airbag Warning Light

Lexus RX 350 check engine light code B0116 and/or B0111 is caused by a fault in the SRS, as the airbags are not properly working. The replacement of the airbag in question with a new one will resolve the issue.

Is a Lexus RX 350 A Smart Buy?

If you are looking for a ride that falls into this category and trying to shortlist your options, then the Lexus RX350 would be the best option. It is seen to depreciate 36% after 5 years, which is extremely good, much less than the Acura MDX, which depreciates about 53% in the first 5 years of its run.

When we look at the remaining data, the analysis shows that the Lexus RX 350 is better than most of the Lexus out there, falling behind only 2 of them on our list. And other tests have also been in favor of the Lexus RX 350.

If you are in the used market looking for a Lexus RX 350, then make sure that it doesn’t have any common problems and inspect the whole car thoroughly. The maintenance records and the title should be checked with caution. Ideally, go for the one with lower miles on the dash. 

Lexus RX 350 Maintenance Schedule

If you want to keep your Lexus RX 350 healthy for a longer period of time, then you must have it regularly maintained. If your RX 350 is regularly maintained, you wouldn’t have to spend a lot on expensive repairs, and your precious Lexus will go a long way before finally going to heaven.

Many manufacturers give the figure 10,000 miles for an oil change that is too far-fetched to give a low overall maintenance cost, but you should have the engine oil changed at not more than 7000 miles. Earlier is better.

Before/On Every 10,000 Miles

  • Replace the oil filter.
  • Engine oil replacement
  • Gaskets inspection and replacement
  • Though lubrication of all the components that require it.
  • Electronics system check
  • Brake check
  • Airbag inspection

Before/On Every 20,000 Miles

  • Replace the passenger compartment air filter
  • Inspect the tires
  • See if there’s any prevailing rust
  • Check for any fluid leaks
  • Tire replacement if necessary

Before/On Every 40,000 Miles

  • Replace the air intake filter
  • Replace the transfer case fluid
  • Inspect the evaporative control system
  • Change the automatic transmission fluid

Before/On Every 60,000 Miles

  • Inspect the spark plugs
  • Inspect the ignition coils
  • Have an engine diagnosis with a scanner tool and see for any abnormal reading.
  • Inspect the electronics system
  • Inspect the brake pads and rotors
  • Drive belt replacement
  • The manufacturers recommend changing the first coolant at 60k miles and the later ones after every 30k miles. It depends on different factors, you should check the color of the coolant to tell which one is it. If it’s the silicated one, you would have to change it after every 30k miles and if it’s the extended drain coolant, then you can change it after 100k miles.

Before/On Every 100,000 Miles

  • This is where the suspension components start to wear and you might have to replace the worn-out ones
  • Service the radiator core
  • Service the AC condenser

Other Maintenance Tips

To prevent your SUV from rust, make sure there is no area open to moisture/air. In other words, the paint is not chipped because that’s where the rust will happen. And make sure that you keep your SUV clean and don’t let mud stay on it for more than 4 days, because after 4 days, the reaction between moisture and iron happens that produces rust.

Have your engine oil replaced before/on every 7500 miles to keep the engine healthier for a longer period of time. And add a can of high-quality petroleum to your gas tank to have the internals of your engine thoroughly cleaned. It’s inexpensive and would save you a lot of dollars on servicing the internals later on.