Lexus GS 300h / GS 450h Hybrid Battery Replacement
The Lexus GS hybrid lineup — including the rear-wheel-drive GS 300h and the more powerful GS 450h — uses a different hybrid architecture from the front-wheel-drive Lexus ES and Toyota Camry. The GS 450h in particular uses a 288V NiMH pack and a rear-axle-integrated electric motor, making it one of the more unusual hybrid configurations we service. GS hybrid owners typically notice battery failure through changes in driving character — the GS is a sports-oriented vehicle and the loss of electric torque fill significantly changes how the car feels to drive.
Replacement Pricing
Battery Type
NiMH, 288V (GS 450h) / 244.8V (GS 300h)
Common Fault Codes
P0A80 · P0A7F · P0AFA
vs. BC Dealer
$6,000–$9,000From $1,599–$1,999
Warning Signs — Lexus GS 300h / GS 450h Battery Failing
- Battery warning and master warning lights
- Harsh or jerky acceleration as hybrid motor assist drops out
- High RPM at cruise speeds — engine carrying full load without assist
- Fuel economy dropping sharply from rated figures
Seeing one or more of these symptoms? Call us for a free phone assessment — we can often narrow down the cause before you even book a diagnostic.
What's Included in the Service
- Full pre-install diagnostic scan and module voltage testing
- Premium remanufactured or OEM replacement battery pack
- Complete pack load test before installation
- Coolant and thermal management system check
- All labour and hardware included
- Post-install system reset and hybrid calibration
- Road test to confirm full system operation
- Up to 5-year written warranty on the replacement pack
- Eco-responsible recycling of your old battery
Lexus GS 300h / GS 450h — Service Notes
GS hybrid battery replacement is more complex than front-wheel-drive Toyota/Lexus models due to the rear motor integration. Access varies by model year. Allow 3–4 hours for a full replacement on GS 450h models.
Mobile Service Available
We can perform Lexus GS 300h / GS 450h battery replacement at your home, office, or workplace across Kelowna, West Kelowna, Vernon, Penticton, and beyond. No tow truck required.
Lexus GS 300h / GS 450h Battery — Common Questions
Specific to this vehicle. Call us for anything not covered here.
No. The GS 450h uses a more powerful 288V pack to support its higher-output drivetrain, while the GS 300h uses a 244.8V configuration closer to the ES/Camry Hybrid. Price and service time differ — call to confirm your specific model.
Quite possibly. The GS 450h's electric motor provides significant torque fill during acceleration, which is part of what gives it its characteristic smooth, immediate power delivery. As the battery degrades, this assist weakens before a warning light appears — meaning 'feels different' is often an early symptom worth investigating.
Ready to Fix Your Lexus GS 300h / GS 450h?
Free phone estimates. Same-day service available in Kelowna. Mobile service across the Okanagan.