There are 1 owner-reported electrical system complaints for the 2009 Lexus LSin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The battery died and we have replaced it with 3 new batteries and something keeps draining the battery. We have had multiple mechanics come and try to figure out what is going on with it, checked the alternator, checked every fuse, checked everything and no one can figure it out
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