One problem related to warnings has 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.
The rear cross traffic avoidance does not detect a person on a bicycle or motorcycle. The safety sense 2. 5 + was advertised and demoed to detect even a pedestrian walking behind the vehicle. The system on my vehicle does not work as advertised and after taking my vehicle to the dealer was informed by the service manager that the system is "intermittent at best". This is not what Toyota advertises. Dealerships apparently have no signal strength detection equipment to verify proper operation of this system. I have reviewed multiple videos of this system in operation and there were no indications of intermittent failures. I have contacted Toyota customer support and am being ignored.
| Rearview System Braking problems | |
| Warnings problems |