17 complaints reported

2017 Toyota Highlander Engine

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
17
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Jan 2026

The contact owns a 2017 Toyota Highlander. The contact stated that when the vehicle was taken to a dealer for routine maintenance, the dealer informed the contact that the rear main seal was leaking and needed to be resealed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 95,402.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Aug 2025
Dec 2025

I drive a 2017 Toyota Highlander and am having issues with the transmission. The issues and poor craftsmanship on the UA80 8-speed transmissions. Toyota offered Technical Service Bulletins T-SB-0160-18, T-SB-0008-21, and a limited Customer Support Program (CSP ZJC). But very few VINs were included and there are tons of Highlander owners with this transmission facing $10,000+ repair bills for what is supposed to be one of the most reliable cars and car brands on the planet. This is very wrong. Toyota has not stood by its customers and have not done right by owners. Toyota needs to recall the transmissions and offer a remedy at no cost to the customer. This needs to be done now. It's completely unacceptable. Thanks for what you do and for reading! Appreciate you guys very much.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Dec 2025
Nov 2025

The contact owns a 2017 Toyota Highlander. The contact stated that upon taking the vehicle to an independent mechanic for service, the contact was informed that the engine was leaking due to a timing chain failure. The contact was advised that the engine needed to be taken apart to repair the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was filed. The failure mileage was approximately 60,000.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Nov 2025
Aug 2024

During the Multi Point Inspection, technician inspected the vehicle. He checked the engine, transmission, and cooling system, topping off all fluids. However, the engine was failing inspection as there was oil underneath the vehicle, which was also seen around the engine, due to an oil leak.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Jun 2024
Jun 2024

Bought it used from Lexus Fremont with 46, 600 miles on March 2024 but after driving it for just a little bit over 200 miles, there is a leak underneath the engine and when I had it checked here in Salinas Toyota they found out that the leak is coming from the TIMING CHAIN COVER of which is a big job and I heard a lot from the owners of this Toyotas with the 2GR V6 Engine has this leaking problem.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Mar 2024
Oct 2023

Toyota issued a Customer Support Bulletin #POL 19-04 on 4/18/19 for vehicle transmission failure on the 2017 and 2018 Highlander and Sienna cars due to faulty assembly. Dealerships were issued the bulletin 5 years ago but customers were never alerted. Toyota has refused to honor the repairs claiming my VIN did not come up for affected car even though bulletin list the model that includes my car. The bulletin further states that after 60k miles the coverage continues for up to 10 years from date of purchase. Toyota knows there is an issue but they failed to alert customers despite sending the bulletin to dealers. Dealerships never alerted customers who brought in their cars for routine service. Thousands of customers are reporting failed transmissions. Toyota is not able or willing to provide information on how they identified which VINs were impacted. The mechanic pulled a code which is exactly what is being seen on the failed transmissions in the same vehicles and cannot understand why Toyota will not cover the cost of the repair for a known defective product. The replacement cost quoted by Toyota is in excess of 11k. The car failed on a busy freeway in Atlanta while traveling at high speed. Motorists exited their cars and pushed the vehicle to the side of the road. My spouse could have been harmed or worse killed.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Apr 2023
Sep 2023

I am writing in reference to a new Toyota Highlander that I purchased in December of 2016. The reason I chose Toyota over a Ford or GM SUV was Toyota’s long history of producing reliable vehicles. I researched and relied on Consumer Reports which gave the Highlander and Honda Pilot the highest rating for customer satisfaction and reliability. About two weeks ago I started hearing a high-pitched whining coming from the transmission, difficulty shifting, and lurching forward when engaging the gear. Last Wednesday my wife was driving on a busy freeway in Atlanta when the vehicle lost acceleration. She was nearly hit while stopped on the freeway. Fortunately, kind motorists got out of their cars and pushed her to the side of the road. The car was towed to a Toyota service shop, and we were advised they could not do the repairs. It was a known internal Toyota issue. I did some research online and found hundreds of posts from Highlander owners of 2017-18 vehicles complaining about issues with the transmission failing. I found Toyota Customer Support Bulletin ,[XXXXXXXX] REPAIR COVERAGE FOR UA80 TRANSMISSION ON CERTAIN 2017-2018 MY SIENNA AND CERTAIN 2017-2018 MY HIGHLANDER VEHICLES. We called Toyota support on 10/9/23 and spoke with a customer service representative named Amber who then transferred us to Vena. They advised based on the VIN number our vehicle was not covered. Vena advised that since all our service was not at a Toyota dealership, they could not honor the repairs. The bulletin stated “after the Primary Coverage, the Secondary Coverage is applicable for 10 years from the vehicles date of first use, regardless of mileage”. The cost of this repair is over $6,000. The bulletin list Highlander 2WD and 4WD SUVs. The representative could not explain how the VIN number exclusions are determined and applied to our SUV. My father-in-law retired from the GM Assembly Plant and as I understand parts are shipped from multiple locations to the assembly pla INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Apr 2023
Apr 2023

The contact owns a 2017 Toyota Highlander. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. As a result of the failure, the contact was unable to maneuver or control the vehicle before coming to a complete stop in the middle of the roadway. The vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who was unable to determine the cause of the failure and advised the contact that a Toyota technician needed to diagnose the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure but did not assist. The failure mileage was 66,000.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Feb 2023
Nov 2022

This is the second major failure I have experienced with my 2017 Toyota Highlander. I have already filed a complaint about the transmission failure earlier this year. On November 14, 2022, I noticed a knocking sound coming from the engine. My husband was able to ascertain that the noise was coming from the water pump and that the water pump gasket had failed. He checked the coolant fluid and all coolant fluid had leaked out, both the reserve tank and radiator had NO coolant fluid remaining. If I had continued to drive the vehicle, it would have overheated and possibly caused more damage. Thanks to the cooler temperatures we have in November, I did not experience the engine overheating. There were no warning lights or any other indicator that something major was wrong with the vehicle. We called our Toyota dealership and were told that the vehicle which now has 50,100 miles, is out of warranty and we would be responsible for the repair. The normal life of a water pump is over 100,000 miles and with this complete failure of this major system, I do not trust the safety of this vehicle with this being the second major system to completely fail in this vehicle.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Nov 2022
Dec 2021

I WAS DRIVING THE VEHICLE WHEN A BELL SOUNDED AND ON THE DASH IT INDICATED THE CAR WAS OVER HEATING. I WAS GOING ABOUT 35 MPH THROUGH A TOWN. I HAD BEEN DRIVING THROUGH THE MOUNTAINS PRIOR TO THIS HAPPENING.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Apr 2017
Oct 2021

The contact owns a 2017 Toyota Highlander. The contact stated upon starting the vehicle, she heard abnormal clicking sounds. There was no warning light illuminated. The vehicle was taken to the dealer who diagnosed that the water pump had failed and needed to be replaced. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 45,000.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Sep 2021
May 2020

VEHICLE KEEPS STALLING WITHOUT WARNING WHILE DRIVING, AFTER STALLING THERE IS NO POWER, NEEDS A JUMP START TO GET GOING AGAIN. HAS HAPPENED MULTIPLE TIMES, VEHICLE IS UNDER WARRANTY AND HAS BEEN TO THE DEALERSHIP TWICE AND THEY KEEP SAYING THERE IS NO ISSUE WITH THE VEHICLE. *TR

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: May 2020
Nov 2019

THIS ENGINE BURNS OIL. 1/8 OF AN INCH PER WEEK. IF A PERSON DOES NOT CHECK THEIR OIL VERY OFTEN THEIR ENGINE WILL FAIL AND LOCK UP. THIS COULD HAPPEN WHEN DRIVING AND CAUSE A SERIOUS ACCIDENT.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Apr 2017
Apr 2019

TL* THE CONTACT OWNS A 2017 TOYOTA HIGHLANDER. THE CONTACT STATED THAT THE VEHICLE STALLED WHILE DRIVING VARIOUS SPEEDS. THE COFFEE CUP ICON DISPLAYED ON THE INSTRUMENT PANEL DURING THE FAILURE. THE FAILURE WAS EXPERIENCED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO HUDSON TOYOTA (599 ROUTES 440 SOUTH, JERSEY CITY, NJ, 07305, (201) 201-5483). THE DEALER INSPECTED THE VEHICLE, REPLACED THE ENGINE OIL, REPLACED THE FILTERS, AND ROTATED THE TIRES. THE DEALER INFORMED THE CONTACT THAT A METAL FRAGMENT WAS LOCATED IN THE MOTOR AREA; HOWEVER, THE DEALER WAS UNABLE TO REMOVE THE METAL OBJECT THAT WAS LOCATED IN THE MOTOR. THE DEALER CONCLUDED THAT THERE WAS AN ELECTRICAL FAILURE. THE MANUFACTURER WAS CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 15,966.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Jan 2017
Aug 2018

ON AUGUST 10TH 2018, I WAS DRIVING MY 2017 HIGHLANDER WITH 17,000 MILES ON A MAJOR HIGHWAY IN CALIFORNIA WHEN I ACCELERATED HARD TO PASS OTHER VEHICLES. SUDDENLY THE HIGHLANDER LOST ALL POWER WITH ALL THE BELLS AND WHISTLES SOUNDING. THE ORANGE TRIANGULAR WARNING/CHECK ENGINE LIGHTS CAME ON WITH THE ALL WHEEL DRIVE SYSTEM FAILURE FLASHING NEEDING IMMEDIATE SERVICE. I WAS ABLE THE GET TO THE SIDE OF THE HIGHWAY WITHOUT GETTING KILLED AND TURNED THE CAR OFF. AFTER A MINUTE I WAS ABLE TO RESTART THE CAR AND ALL THE WARNING LIGHTS RESET. THIS WAS THE SECOND TIME THIS HAPPENED. FIRST TIME THIS HAPPENED THE HIGHLANDER HAD ONLY 4,000 MILES ON IT AND WAS UNDER THE SAME CIRCUMSTANCES. I WAS TRYING TO PASS. WHEN I TOOK IT TO THE DEALERSHIP IN RENO NV THEY SAID ALL THE ERROR CODES WERE NOT CAPTURED AND THEY HAD NOT HEARD OF THIS ISSUE DESPITE MANY COMPLAINTS ON THE INTERNET AS WELL AS THIS SITE? I WAS TOLD THERE WAS NOTHING THEY COULD DO WITHOUT AN ERROR CODE. THEY SUGGESTED THE NEXT TIME IT HAPPENS, DO NOT RESTART THE CAR AND HAVE IT TOWED THE A DEALERSHIP TO TRY AND RECAPTURE AN ERROR CODE. I FILED A CLAIM WITH TOYOTA CORP BUT THEY LEAD ME TO THINK THAT THEY DON'T INVESTIGATE INCIDENTS LIKE THIS UNLESS THERE ARE NUMEROUS COMPLAINTS. I HAVE ADVISED MY FAMILY OF THIS DANGEROUS CONDITION WITH THE HIGHLANDER AND IF ANY ONE GETS HURT OR KILLED PLEASE SUE THE HECK OUT OF THEM. THIS IS A VERY DANGEROUS SYMPTOM WITH THE HIGHLANDER THAT IS GOING TO GET SOMEBODY KILLED AND TOYOTA DOESN'T SEEM TO CARE.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Oct 2018
Jul 2018

IN MOTION, THERE WAS NO INDICATOR LIGHT ON BOARD, JUST BIG NOISE STARTED COMING DURING START OR SPEED OF CAR. ENGINE CYL 6 ROD BEARING WAS FAULTY , MAKING NOISE, DEALER REPAIRED IT AND NOT ABLE TO ASSURE OTHER BEARINGS DONT HAVE ANY ISSUES.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Jul 2018
Jul 2017

TL* THE CONTACT OWNS A 2017 TOYOTA HIGHLANDER. WHILE THE BRAKE PEDAL WAS DEPRESSED, THE ENGINE REVVED AND ALL THE WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO ISLAND TOYOYA (1591 HYLAN BLVD, STATEN ISLAND, NY), BUT THE FAILURE COULD NOT BE REPLICATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 17,100.

Type: Vehicle, Vehicle: 2017 TOYOTA HIGHLANDER, Manufacturer: Toyota Motor Corporation
Incident: Jan 2017

Trend Over Time

Complaints by year

Quick Summary

The 2017 Toyota Highlander has 17 Engine complaints on file. Review the timeline above for detailed owner experiences.