2018 RX 350 F Sport - Squealing Brakes & Vibration at Low Speeds

ClearTheCode guidance (Lexus · Brakes & suspension)

Summary: For 2018 RX 350 F Sport - Squealing Brakes & Vibration at Low Speeds, work through these steps on your 2015+ vehicle:

1. Confirm the symptom — note when it happens (cold start, highway, after fuel fill, etc.).
2. Scan codes — save all pending/stored DTCs; don't clear until you've recorded them.
3. Check TSBs & recalls — look up your VIN for open campaigns and known fixes.
4. Inspect the obvious — related fuses, connectors, fluid level, and recent repairs.
5. Test the common fix — follow model-specific service procedures; one change at a time.
6. Escalate if needed — burning smell, no brakes, overheating, or stalling in traffic → shop visit.

Owner reported: Hey everyone,

I've got a 2018 Lexus RX 350 F Sport with about 65,000 miles on it, and I'm starting to get really annoyed with the brakes. For the last few weeks, I've been hearing a really loud squeal, especially when I'm coming to a stop at lower speeds. It's not constant, but it's frequent enough to be embarrassing.

On top of that, I've noticed a slight vibration through the pedal and steering…

This is educational guidance, not a substitute for hands-on diagnosis.