2024 Toyota Grand Highlander electrical system problems
22 owner complaints filed with NHTSA name the electrical system on the 2024 Toyota Grand Highlander — 11% of all complaints for this model year.
What owners report
“While driving my 2024 Toyota Grand Highlander Hybrid AWD at highway speed with only 16,755 miles on the vehicle, multiple warning messages suddenly appeared, including warnings related to the engine, hybrid system, AWD system, and other vehicle functions. The vehicle instructed me to pull over…”
filed Jun 25, 2026
“While traveling at highway speed on I-75 northbound, the vehicle experienced a complete and total loss of electrical power. and propulsion. The following conditions were present simultaneously: - Complete loss of propulsion - Inability to shift transmission to neutral — vehicle could not be moved…”
filed Apr 29, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Due to an error in the instrument panel software at vehicle startup, the instrument panel…Campaign 25V595000 · Sep 11, 2025
Related service bulletins
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and…
T-SB-0058-23 Rev1 · Service Campaign · issued Jun 13, 2025Some 2024 – 2025 model year Grand Highlander and Grand Highlander Hybrid vehicles may exhibit a condition where the Blind Spot Monitor (BSM) system is inoperative, there is a BSM malfunction message on the…
T-SB-0037-25 · Service Bulletin/Repair Instructions · issued Apr 18, 2025Some 2024 – 2025 model year Grand Highlander and Grand Highlander Hybrid vehicles may exhibit a condition where the Blind Spot Monitor (BSM) system is inoperative, there is a BSM malfunction message on the…
T-SB-0037-25 · Service Bulletin/Repair Instructions · issued Apr 18, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system…
T-TT-0779-25 · Service Bulletin/Repair Instructions · issued Apr 2, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system…
T-TT-0779-25 · Service Bulletin/Repair Instructions · issued Apr 2, 2025
Electrical System problems in other Grand Highlander years
| Year | Reports | Share |
|---|---|---|
| 2025 Grand Highlander | 5 | 8% |
Other reported problem areas on the 2024 Toyota Grand Highlander
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.