Which parts fail
Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2019 Toyota Highlander owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2019 Toyota Highlander. The contact stated that while driving approximately 35 MPH, there was an abnormal whining sound coming from the vehicle. There was no warning light illuminated. The contact previously owned a 2017 Toyota Highlander and heard the same whining sound coming from the transmission. The contact stated that when the 2017 Toyota Highlander was taken to the dealer where the vehicle was purchased, the contact was offered a trade of the 2017 Toyota Highlander for the 2019 Toyota Highlander. Following the failure of the 2019 Highlander, the vehicle was taken to two different dealers to be diagnosed. The first dealer had not diagnosed the vehicle but stated that the vehicle was operating normally. The vehicle was taken to another dealer, who diagnosed the vehicle and determined that the transmission needed to be replaced. The vehicle was not repaired. …
The contact owns a 2019 Toyota Highlander. The contact stated while driving 45 MPH uphill, the vehicle downshifted unintendedly and failed to shift back to the intended gear. There was no warning light illuminated. The vehicle was taken to the dealer, where the transmission was recorded; however, the failure recurred. The contact stated that the failure had been recurring while driving uphill. Additionally, the contact stated that while at a complete stop and depressing the brake pedal, the vehicle lunged unexpectedly. The contact stated that while driving on a level road surface and depressing the brake pedal, the brake pedal went to the floorboard; however, while driving uphill and depressing the brake pedal, the brake pedal travel distance was reduced. The vehicle was taken to the dealer, where the brake line was bled; however, the failure persisted. …
The contact owns a 2019 Toyota Highlander. The contact stated that while driving at various speeds, there was an abnormal burning oil odor coming from the vehicle. The vehicle was taken to an independent mechanic, who informed the contact that the failure was related to the transmission. The mechanic referred the contact to a certified transmission mechanic. The vehicle was taken to Leon's Transmission Services, where diagnostic trouble codes indicating an internal transmission pump failure were retrieved. The vehicle was then taken to Integrity Transmission & Auto Repair, where the same assessment was made, and the mechanic determined that the transmission needed to be replaced with a used, new, or rebuilt factory transmission. The dealer was contacted for parts and informed the contact that parts were not available. The vehicle was not repaired. …
The contact owns a 2019 Toyota Highlander. The contact stated while driving at an undisclosed speed and attempting to accelerate, the vehicle hesitated and was sluggish while responding. There was an abnormal humming noise detected. There were no warning lights illuminated. The vehicle was taken to the local dealer, where the transmission was replaced, but the failure recurred. While driving 71 MPH and merging into traffic while accelerating, the vehicle failed to respond. The contact was able to veer to the shoulder. The vehicle was taken back to the local dealer; however, the dealer was unable to duplicate the failure. There were no fault codes retrieved. The mechanic at the dealer reported that during the test drive, there was hesitation while downshifting. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 16,000.
The contact owns a 2019 Toyota Highlander. The contact stated that while attempting to start the vehicle, there was an abnormal grinding sound coming from the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with transmission failure. The independent mechanic replaced the transmission fluid; however, the failure reoccurred. The vehicle was towed back to the independent mechanic, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The contact was informed that parts were on back order. The manufacturer was made aware of the failure, and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 128,669.
The contact owns a 2019 Toyota Highlander. The contact stated that while driving at an undisclosed speed, there was a high-pitched whining sound coming from the vehicle. In addition, the contact became aware that the transmission was shifting abnormally rough. No warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with transmission failure. The contact was advised to take the vehicle to the dealer. The vehicle was taken to the dealer where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 90,000. The VIN was unavailable.
The contact owns a 2019 Toyota Highlander. The contact stated that while operating the vehicle, there was a whining sound coming from the engine compartment. Additionally, the vehicle experienced hard, rough, and jerky shifting. The check engine warning light illuminated later and the message "Traction Control Off" was displayed. The vehicle was immediately driven to the local dealer and was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The contact stated that during routine maintenance the transmission fluid was flushed and refilled by the local dealer. The manufacturer was notified of the failure. The failure mileage was 80,000.
The contact owns a 2019 Toyota Highlander. The contact stated that driving the vehicle lost power and failed to properly accelerate while depressing the accelerator pedal. There was an abnormal whining sound coming from the transmission and the vehicle lunged forward and unintendedly accelerated. The vehicle was taken to the local dealer and was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not yet repaired. The contact was informed that the transmission was on back order from the manufacturer. The manufacturer was notified of the failure. The failure mileage was 74,000.
The contact owns a 2019 Toyota Highlander. The contact stated while driving at an undisclosed speed, the contact became aware of an abnormal whining sound coming from the vehicle, and the transmission was shifting hard. No warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer was made aware of the failure, and a case was filed. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 95,000.
The contact owns a 2019 Toyota Highlander. The contact stated that while driving at various speeds, a loud grinding and humming sound was heard intermittently from underneath the vehicle. The vehicle was taken to an independent mechanic, who diagnosed a transmission failure and warned that the transmission could experience a complete failure. The vehicle was not repaired. The mechanic contacted the manufacturer, who confirmed that the VIN was not included in a recall. The manufacturer contacted the dealer on the contact's behalf; however, no further assistance was provided. The failure mileage was approximately 65,000.
Transmission complaints in other Highlander years
Frequently asked questions
How common are transmission problems on the 2019 Toyota Highlander?
NHTSA has 210 complaints about the transmission & drivetrain of the 2019 Toyota Highlander, 42% of the model year's 500 complaints. The component named most often is automatic transmission (1 mentions).
Is there a recall for 2019 Toyota Highlander transmission problems?
No. NHTSA lists no transmission & drivetrain recall for the 2019 Toyota Highlander, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2019 Toyota Highlander transmission problems start?
Half of the complaints with a recorded mileage happened before about 65,000 miles, and 34% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.