Parts for your 2020 Lexus Is-Wiper blades

2020 Lexus IS wiper blades: what they do and when to replace them

Wiper blades are definitely fitted to the 2020 Lexus IS. This is confirmed by the Lexus IS Owner’s Manual for the model year, which includes a dedicated Windscreen wipers and washer section covering operation and maintenance, and by Lexus service literature for the IS (GSE3x/AVE3x) platform that details wiper system inspection and replacement procedures. Being a sedan, it has front wiper blades and no rear wiper.

On a 2020 Lexus IS, the wiper blades do a simple but vital job: keep the windscreen clear so the driver can see properly in rain, road spray, salty coastal air, or after a dusty country run. Fresh, good-quality blades sweep quietly with even pressure, worn blades chatter, smear and leave arcs that make night driving a pain.

As part of routine servicing, it’s smart to inspect the wiper blades every 10,000 km or six months. In Aussie and Kiwi conditions—lots of UV, heat and salt exposure—most owners will be better off replacing the rubbers every 6–12 months. Many 2020 IS models use refillable OEM inserts, so the rubber can be replaced without changing the whole blade, reducing cost and waste. If the frame’s bent or the spoiler is loose, swap the complete blade assembly instead.

Quick tips for longer-lasting blades on a 2020 Lexus IS:

• Clean the windscreen and the blade edges with mild glass cleaner or a damp cloth at fuel stops.
• Avoid running wipers on a dry, dusty screen—use the washers first with proper washer fluid, not just water.
• Park out of direct sun when possible, UV cooks rubber fast in summer.
• Lift the arms gently only when needed, don’t let them snap back onto the glass.

Typical sizes for the 2020 Lexus IS are a longer driver’s side and a shorter passenger’s side (commonly around 26 inch driver and 18 inch passenger). Always check the owner’s manual or a trusted parts guide to confirm the exact fitment for the specific trim. During a service, a technician should also check wiper speed/park operation, inspect the washer jets for aim and flow, and top up the washer reservoir. Fresh blades are a quick, affordable upgrade that makes a big difference the next time the skies open up.

Popular questions about 2020 Lexus IS wiper blades

What size wiper blades does a 2020 Lexus IS use?

Most 2020 Lexus IS variants take a longer driver’s blade and a shorter passenger blade, commonly around 26 inch and 18 inch respectively. Because trim and market can vary, it’s best to confirm against the owner’s manual or a reputable parts catalogue before buying.

How often should wiper blades be replaced in Australia and New Zealand?

With strong UV, coastal salt and heat, plan on 6–12 months for rubber inserts. If you notice streaking, juddering, squeaking or missed patches sooner, replace them earlier. Keeping the windscreen clean and using proper washer fluid extends blade life.

Can only the rubber insert be replaced on a 2020 Lexus IS?

Yes. Lexus/Toyota blades typically support replacing just the rubber insert, which is cost-effective and reduces waste. If the blade frame is warped, noisy, or the aero spoiler is damaged, replace the complete blade assembly for best results.