2026 Toyota Grand Highlander Electrical system Problems
- Complaints
- 3about this part
- Share
- 6%of 48 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 3 complaints about the electrical system of the 2026 Toyota Grand Highlander, 6% of the 48 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My Toyota Grand Highlander Hybrid Limited has 16000 miles. Yesterday, 5 vehicle alerts appeared simultaneously: Check Engine, AWD system, Drive-Start control system, Intelligent clearance Sonar, and Hybrid system. The vehicle has reduced power and check engine light is illuminated. I towed the vehicle to dealership. They found damage to inverter radiator causing a leak of coolant. Dealership mentioned that this could be because of flying debris hitting the vent. I am requesting a goodwill technical review and repair of the same. …”
NHTSA complaint #11770851, filed 2026-10“When I went to turn the car on last Tuesday (3/24.2026), the entire digital dashboard was black. I tried restarting the car a few times with no resolution. Thankfully, the infotainment screen and heads up display (HUD) were on and working fine. If it was not for the HUD, I would of had no idea what my speed was driving home. However, I was unable to see my gas level or other safety features which is concerning. Once I got the car home about 15 minutes later, we turned the car off and back on and everything was fine. So far, everything has been working normally ever since. …”
NHTSA complaint #11727530, filed 2026-03Electrical system: other model years
Other parts of the 2026 Toyota Grand Highlander
14 complaintsBody and structure
10 complaintsEngine
8 complaintsFuel system
6 complaintsBrakes
3 complaintsForward collision avoidance
3 complaintsSeats
3 complaintsTransmission and drivetrain
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsVehicle speed control
2 complaintsAir bags
1 complaintsLane departure
1 complaints
← All problems reported for the 2026 Toyota Grand Highlander
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology