My wife's car only has 11000 miles on it and it is already down to 4mm brake pad life. Is that normal for these cars? I'm accustomed to our Lexus vehicles getting 30k to 50k miles on a set of pads.

 

That doesn’t seem right. My 2022 IS350 has ~4K miles and I can still see the non-directional machining on all 4 rotors. I would think the front brake pads would last at least 20k.

 

From my experience the front pads are last up to 15-18k miles on the F-Sport version.

 

4%? That is a strange way to put it. Do you know what the measurement was on the pad thickness?

I drive my IS 350 like I stole it (well, not literally), with almost 14,000 miles and have not measured the pads, but they're still working fine. And the 350 has a more aggressive compound that wears faster... so no idea why a 300 would be experiencing premature pad wear unless it's being driven very hard.

 

The IS300 and IS350 has the same calipers/rotors but does the IS350 really have a more aggressive brake pad?

 

In the past, RWD F Sport cars had a different part number for the front brake pads, which were OEM Textar instead of Advics. I believe this is still true for 2021+ models.
refer to https://www.clublexus.com/forums/is-3rd-gen-2014-present/895832-lexus-3is-stock-brake-pad-sources-part-numbers-and-tips.html

 

^That is a fun fact indeed. Thank you for the details.

 

Fixed. I meant 4mm.

 

All of her Pads are 4mm in only 11k miles. That seems ridiculous to me to have to get new pads every year.. Is there any way this is a defect in the car? It's still under warranty obviously as it's a brand new car.

 

That’s strange the rears are at the same level as the front, these usually last twice as long. The only thing I can think of that would be a “defect” is if the sliding pins on the rears are seized but that is very unlikely in a new car. Perhaps your wife rides the brake or rests he foot on the brake slightly when coasting? I can’t think of anything else that would cause this premature wear.

 

Appreciate it Coconut. Maybe she is... something's sure wrong. I've never had a car that wore out Brake Pads that fast. Not even close.

 

Does anyone know if the IS300 has a Brake Pad warning light? This time it got caught in an inspection, but a year from now who knows?

 

It doesn’t. There is no sensing wire going to the brake pads however they’re is metal squeal indicator that make a wretched noise once your about run out of pad.

 

depends how you drive
Original brakes
80250 miles I have and still 3mm brakes left on front
changing soon for the first time
i have a 2014 lexus is350 awd f sport im the original owner

 

My 2014 is350 f sport (AWD) got 66k miles out of the OEM pads and rotors with 60% city and 40% highway. We also live in very hilly terrain, so that’s a variable. This is likely on the very high end, but it does highlight the potential longevity of the pads and rotors.