Two problems related to automatic transmission have been reported for the 2021 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Toyota Highlander based on all problems reported for the 2021 Highlander.
My vehicle has 67,100 miles. A whining/whistling noise recently started and the dealer has diagnosed that a new transmission is needed at a cost of $6,000-$8,000 and it is out of warranty. Researching this shows that this is a known manufacturing defect referred to under t-sb-0008-21. I am concerned that my transmission will fail while I am operating the vehicle.
The contact owns a 2021 Toyota Highlander. The contact stated that while driving at 40 mph, there was an abnormal whining sound coming from the front of the vehicle. There was no warning light illuminated. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 49,729.
| Power Train problems | |
| Automatic Transmission problems |