Lexus RX Electrical System Problems
Owners have filed 118 complaints with NHTSA about electrical system problems on the Lexus RX across 22 model years. The 2024 model year has the most (19). The words owners use most often: “private sale purchase” (7% of reports).
- 118electrical system complaints
- —median miles at failure
- 8mention a crash
- 7mention an injury
- 1related recalls
- 27%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Private sale purchase: mentioned in 8 of 118 complaints (7%)
- 12V battery: mentioned in 8 of 118 complaints (7%)
- Discovered discrepancy: mentioned in 8 of 118 complaints (7%)
- Odometer fraud: mentioned in 8 of 118 complaints (7%)
At what mileage do electrical system problems happen?
Based on 31 complaints that reported the odometer reading.
How serious are the reports?
Of 118 complaints, 8 mention a crash, 6 a fire, 7 an injury.
Lexus RX electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 RX | 6 | 60% | 1,000 |
| 2025 RX | 6 | 27% | — |
| 2024 RX | 19 | 32% | 9,671 |
| 2023 RX | 10 | 16% | 7,000 |
| 2022 RX | 6 | 21% | — |
| 2021 RX | 4 | 6% | — |
| 2020 RX | 4 | 9% | 17,000 |
| 2019 RX | 6 | 18% | — |
| 2018 RX | 3 | 12% | — |
| 2017 RX | 3 | 6% | — |
| 2016 RX | 4 | 14% | — |
| 2015 RX | 1 | 5% | — |
| 2013 RX | 3 | 16% | 151,219 |
| 2012 RX | 3 | 25% | 257,193 |
| 2011 RX | 4 | 14% | 172,969 |
| 2010 RX | 6 | 8% | 101,000 |
| 2009 RX | 3 | 9% | 211,250 |
| 2008 RX | 5 | 7% | 220,500 |
| 2007 RX | 9 | 16% | 65,000 |
| 2006 RX | 10 | 31% | — |
| 2005 RX | 2 | 7% | 80,000 |
| 2004 RX | 1 | 3% | 39,959 |
When owners reported it
Related recalls (1)
Electrical system: instrument cluster/panel
Model years: 2025
Problem: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2024 Toyota Venza, 2023-2025 RAV4 Prime, RAV4, Highlander, GR Corolla, Crown, 2024-2025 Lexus TX, LS, Toyota Tacoma, Grand Highlander, and 2025 Lexus RX, Toyota Crown Signia, Camry, RAV 4 Plug-in Hybrid (PHEV), and 4 Runner vehicles. Due to an error in the instrument panel software at vehicle startup, the instrument panel may fail to display vehicle speed, brake system, and tire pressure warning lights.
Risk: An instrument panel display that does not show critical information can increase the risk of a crash or injury.
Fix: Dealers will update the instrument panel software over-the-air (OTA) for non-PHEV vehicles, free of charge. For PHEV vehicles, dealers will inspect the instrument panel assembly, and either replace it, or update the software, free of charge. Owner letters were mailed December 5, 2025. Additional letters will be sent, anticipated in May 2026. This is a phased recall. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's numbers for this recall are 25TB08 and 25TA08. Lexus' numbers for this recall are 25LB05 and 25LA05.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The Power tailgait opens but wont close, gives two beeps
Electronic Parking Brake (EPB), 12V Battery/Electrical System. My vehicle's 12V battery failed, with the dealership measuring voltage below 10V during the event. This caused multiple simultaneous module malfunctions (confirmed by the dealer as caused by the battery failure), including a complete…
Push brake to start. Displays car not ready low battery. Seat memory not retaining setting. Windshield wiper speed will not remove water fast enough
A 2024 Lexus RX 350 H 12 volt battery is discharging leaving owners stranded. AAA must be called to jump the battery. This has happened four times, each when opening car doors to clean the vehicle. From my understanding the battery discharges within 5 minutes leaving the auxiliary system without…
(1)The original 12-V battery was replaced by the dealership on XXX (after 5-week and 120-mile usage) with a new one, model: 00544-MFH50, S/N [XXX], 540CCA and 100 RC. (2)Upon double-checking with the 2026 Lexus Ownerâs Manual for RX450H+, on Page 605, it clearly stated that when replacing the…
Frequently asked questions
Do all Lexus RXs have electrical system problems?
No. NHTSA has 118 owner complaints about electrical system for the Lexus RX. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Lexus RX electrical system?
Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
What do owners say about electrical system problems on the Lexus RX?
The most frequent phrase is “private sale purchase”, in 8 of 118 complaints, followed by “12v battery” (8).
Other Lexus RX problems
- Engine problems (146)
- Power Train problems (134)
- Air Bags problems (128)
- Service Brakes problems (101)
See all Lexus RX problems.