There are 3 owner-reported electrical system complaints for the 2008 Lexus ISin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
DASHBOARD AND DOOR PANELS ARE STICKY, ENGINE SEEMS LIKE IT WILL DIE OUT WHEN I COME TO A STOP . SUNROOF DOESN'T OPEN BECAUSE CONTROLS DON'T WORK .
NAV LED TOUCH SCREEN NOT WORKING/ STOPPED WORKING.
Electrical Issues started at approximately 30,000 miles. Random times of power windows not rolling down or back up. Random times of Radio controls not working. After recall of airbags was completed, the Navigation system started having Random issues with the touchscreen. Sometimes it would work and sometimes it didn't. Eventually the touchscreen on the Navigation quit working at all. When the door panels were replaced, the windows started working more consistently. The Air Conditioner stopped working one day. The next day after driving it back into the driveway, over the driveway bump, it started working. The entire electrical system seems like there are wires that make a connection, then maybe come loose just barely enough to no longer make a connection. And just a mechanic's hand brushing against something during a normal maintenance check up fixes it temporarily. Or hitting a bump in the road. Every issue is ELECTRICAL related. There are many other IS250 owners with the same issues all over public forums online. Many too that their Navigation no longer worked after few miles on the car. Could these electrical issues cause a fire? How do we know it can't? It's always a worry when I drive my car.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026