There are 1 stored owner reports matching the engine leading-label group for the 2014 Lexus LS in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)1. Component is a sealant on the valley plate that covers a coolant passage, discovered when cabin heat not providing heat. 2. Coolant valley leak can lead to severe engine damage and mechanical failure, potentially causing the vehicle to stop working and increasing the risk of accidents. 3. Open sources appear a coolant valley leak is common with Lexus LS & GX 460, LX 570, "F" series cars and LC 500 models, and is an expensive repair from being labor intensive. 4. The vehicle has been inspected by the Lexus dealership.
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.