The Lexus IS is a compact sport sedan with a well-finished interior and a fairly clear mounting situation — once you know which spots actually work. The cabin is on the smaller side, the infotainment screen sits high on the center stack and blocks the dash, and the CD player (where it exists) is positioned too low to be useful. But the windshield is accessible and the center vents are horizontal and well-placed, which gives you two genuinely good options.
This guide covers all current IS models: the IS 300, IS 350, and IS 500, from the 2014 refresh through today’s generation. The interior layout has stayed largely consistent across those years, so these recommendations apply to the full run.
What Works — and What Doesn’t
The windshield gives you a clear sightline and enough real estate to mount a phone at a comfortable viewing angle. It’s the most reliable location in this vehicle.
The center vents are horizontal and sit at roughly the right height for a phone mount. They’re positioned in the middle of the dash rather than off to the driver’s side, which means a slight reach, but it works well in practice.
Best Windshield Mount: iOttie Easy One Touch
The iOttie Easy One Touch is a strong pick for the IS windshield. The extendable arm expands from 5 to 8 inches, which gives you the reach to position the phone at a comfortable angle without it sitting right against the glass. The one-touch cradle opens and closes with a button press, making it easy to dock the phone with one hand when you’re getting in.
The suction cup uses a locking vacuum base that holds reliably even in heat, and the mount includes an adhesive dashboard disk as an alternative mounting surface — less relevant in the IS given where the screen sits, but useful to have. Position it on the lower driver’s side of the windshield for the shortest reach and the least distraction.
Best Vent Mount: Andobil Air Vent Mount
The Andobil Air Vent Mount clips to the horizontal center vents without stressing the slats. It uses a locking clip design that grips the vent securely — not the spring-tension-only type that tends to droop over time. The ball-and-socket head adjusts to any angle, and the cradle opens to handle phones up to 3.75 inches wide.
Because the IS vents sit in the center of the dash rather than off to the driver’s side, you’re not getting a perfectly driver-aligned view the way you would in a larger vehicle. But it’s still within easy reach and puts the phone at about the right height relative to the steering wheel.
iPhone users who want a cleaner setup can use the Andobil MagSafe Air Vent Mount instead — same clip, magnetic attachment rather than a cradle. Fast to mount and dismount, and keeps the phone firmly in place.
Quick Summary
The Lexus IS gives you two solid mounting locations: windshield and vent. The windshield is the better pick if you want maximum adjustability and a sturdy hold; the vent is more convenient for quick in-and-out trips. Avoid the CD player and cup holder positions — neither works well in this cabin.
