Toyota · 2006–present (US)
Toyota Highlander Hybrid battery service
Toyota Highlander Hybrid battery repair and replacement across the Phoenix metro. The Highlander Hybrid runs a 288V nickel-metal hydride pack of 40 modules, mounted under the second-row seat area.

Toyota Highlander hybrid battery at a glance
- Battery type
- Nickel-metal hydride
Get a price for your Toyota Highlander Hybrid
Pick what you need and how to reach you. You get a written quote before anything is ordered.
Symptoms Highlander Hybrid owners report
- Reduced power on grades and under load.
- The engine running at stops where it used to shut off.
- City fuel economy dropping faster than freeway economy.
- A hybrid system warning light.
- Fan noise from the second-row area.
Keep the cooling intake clear
Something you can do today, for nothing
The pack draws cabin air from a vent in the second-row area. Keep cargo and car seats from pressing against it, and vacuum that area if you carry pets. Restricted airflow means a hotter pack.
Repair or replace
- A few weak modules with the rest grouped tightly: module-level repair.
- A widening spread across the 40: replacement.
- We measure every module and show you the numbers before recommending either.
- The 12V battery is tested first, and the vehicle is road tested under load rather than at idle.
Prices and fitment for the Toyota Highlander Hybrid
- Toyota Highlander Hybrid Battery (2006–2019) — from $1,849
Toyota Highlander hybrid battery questions
Why does my Highlander Hybrid feel weak on hills?
Is the Highlander Hybrid battery more expensive than a Prius battery?
Does towing damage the hybrid battery?
Recently published
Latest from the blog
- Symptoms5 min read
Hot or Chemical Smell From a Hybrid's Back Seat: What to Do
A hot or sulfur smell behind the rear seat usually means overheating modules or vented electrolyte. What to do now, and what the repair costs.
- Diagnostics5 min read
Hybrid Battery or Inverter? 5 Tests That Tell Them Apart
Five data points separate a failing hybrid battery from a failing inverter: block voltage spread, SOC swing, codes, coolant flow and heat behavior.
- Diagnostics5 min read
Can a Phone OBD2 App Tell You If Your Hybrid Battery Is Bad?
A $20 dongle and the right app shows all 14 Prius block voltages — but not internal resistance or capacity. How to read what you get at home.
Not sure what your hybrid needs? We'll work it out with you.
We come to you, test the pack, the 12V and the cooling, and you get a written quote before anything is decided. No obligation.