Toyota Highlander owners have reported 720 power train related problems since 1996. Table 1 shows the 23 most common power train problems. The number one most common problem is related to the vehicle's power train (520 problems). The second most common problem is related to the vehicle's automatic transmission (104 problems). For details of each of the problem category, use the links in the table.
Transaxle (transmission) failure. Whining noise then failed while driving freeway. Towed to dealer/mechanic and confirm failure. There was a whining sound but no engine light warnings prior to complete failure. Toyota put out a TSB for this but was never informed - pol19-04. Read details...
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. Read details...
The transmission failed without any warning on the interstate highway at 33,000 miles on the car putting the whole family in the car at risk of collision. There was no action from Toyota even after knowing that their transmissions have issues. Read details...
The contact owns a 2020 Toyota Highlander. The contact stated while driving at various speeds and accelerating, the vehicle made an abnormal buzzing and clunking sound. The vehicle was taken to the dealer several times. Read details...
Transfer case making rotational bearing noise fluid have lots of metal debri Read details...