NHTSA Complaint #11684075 — 2024 LEXUS NX

Vehicle: 2024 Lexus NX 450h+ (plug-in hybrid) Odometer at latest event: ~14,600 miles Dealer: Motor City Lexus of Bakersfield (Bakersfield, CA) Lexus Corporate Case #: 250823001008 Complaint Description: While driving, the vehicle suddenly lost all electrical power without warning on two separate occasions, causing the instrument cluster to go dark and an immediate loss of power steering and brake assist. I had to coast to a stop—this is a serious crash risk. Timeline of events: • 08/20/2025 – In-motion total electrical blackout with loss of steering/brake assist at approximately [speed] mph. • 08/21/2025 – Dealer replaced the 12-volt battery. • 08/23/2025 – Repeat in-motion blackout with my children in the vehicle; dash went dark, loss of steering/brake assist, coasted to a stop. • After 08/23/2025 (at dealer) – During diagnostic testing, a dealer technician reproduced the same failure (total electrical power loss while moving, dash dark, loss of steering/brake assist). This confirms a repeatable safety defect. • There have also been three additional immobilizations that required Lexus Roadside Assistance on other dates. Current status: Vehicle remains at the dealer for the second repair attempt. I am within the 18-month window from delivery (Mar/Apr 2024). Safety concern / suspected area: Sudden total electrical loss while driving with loss of steering/brake assist. Please investigate potential defects in the 12-V/DC-DC charging system, hybrid/electrical system (inverter/DC-DC/grounding), main fusible link, or related wiring/connectors/grounds that could cause complete power loss while the vehicle is in motion.