Fuel System/Emissions
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
What Owners Say
"In April of 2023, the Highlander Hybrid's check engine light came on while driving from PA. Car "bucked" a few times for some distance, but engine kept running. We happened to be on our way past an out of state (MD) Toyota dealer, contacted the dealer while driving, and received an appointment that day. After making it to the dealer, our vehicle was diagnosed immediately. We were informed that the Highlander's monitoring computer indicated that the fuel pump was failing, but that there was a current Toyota Service Bulletin which addressed our specific problem. The Service Bulletin provided full replacement of the faulty fuel pump at no charge (i.e., no charge for diagnosis nor parts nor labor). We were given a loaner car at no charge, continued to our destination, then returned the next day to pick up our repaired vehicle. We completed our trip without incident. There has been no recurrence of that issue since that warranty work was completed."
Anonymous, PA (2019 Toyota Highlander Hybrid XLE 3.5-L V6 hybrid)
"Engine light came on. Took to Vancouver WA dealership and they replaced free of charge"
Anonymous, ID (2019 Toyota Highlander Hybrid XLE 3.5-L V6 hybrid)