NiMH
Lexus GS 450h (S190) Hybrid Battery (2007-2011)
The Lexus GS 450h (S190) Hybrid Battery (2007-2011) is the high voltage battery in the Lexus GS 450h (2007-2011).
Specifications
| Chemistry | NiMH |
|---|---|
| Nominal voltage | 288 V |
| Modules | 40 |
| Module voltage | 7.2 V |
| Location | Trunk area behind the rear seat, concealed by fabric covers |
| Weight | 69 kg |
Cars That Use It
- Lexus GS 450h 2007-2011 RWD Run the checklist
What Goes Wrong
Reported failures, each from a source listed below, as of October 7, 2026.
- Owner complaints NHTSA lists under the Hybrid Propulsion System component for the Lexus Gs450H, by model year: 2007: 1 · 2008: 1. These are all hybrid system complaints, owner reported and unverified, not only battery faults, as of 2026-10-07.
Symptoms
- The Lexus emergency response guide says a ground-fault monitor watches for high-voltage leakage to the metal chassis while the vehicle is running; if it detects a fault, the master warning light comes on and the display shows "Check Hybrid System". (techinfo.toyota.com: L-ERG-003-D.pdf, 2026-10-07)
Same Electrical Spec
These packs share this one's chemistry, voltage and module count. That is a spec match only. It does not mean the parts fit each other, so check with a technician.
Warranty
Lexus's 2008 GS 450h Warranty and Services Guide lists the hybrid battery and hybrid battery control module under the Hybrid System Warranty for 96 months or 100,000 miles, whichever occurs first; other 2007-2011 years were not opened. (assets.sia.toyota.com: L-MMS-08GS450h.pdf, 2026-10-07)
Get This Pack Tested
Do not open it yourself. The pack can hurt you with the car switched off.
Last updated October 7, 2026. Failure and recall notes are as of that date. Spotted a mistake, or speaking for a maker? Report an error.
Hybrid Battery Test is independent. It is not affiliated with, sponsored by or endorsed by Lexus. Names and part numbers are used only to identify the vehicle and the part.