One problem related to warnings has been reported for the 2023 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2023 Toyota Highlander based on all problems reported for the 2023 Highlander.
The warning lights go on for no apparent reason. Dash instrumen just disappear for no apparent reason and then reappear randomly. Such as compass disappearing and reappearing throughout the drive at long stretches at a time. The forward and rear collision warning system just come on when nothing is close to vehicle. The blind spot monitoring system doesn’t always show up on right side of vehicle. Doesn’t matter speed or road conditions. It randomly happens throughout our regular commute and not. The warning buzzer goes off but doesn’t say what is the problem. Went off for over half an hour even when car was stopped and car turned off. Dealership not able to figure out why. Said to bring it in while doing it. By time I get there it’s done. I live 1/2 hour away. They drive it and say blind spot working like supposed to. I showed them videos of how it’s not working and they tell me it’s fine. Yet even a semi truck didn’t show up in blind spot or a ups truck. They say unless it throws a code every thing is fine. Yet I’ve had clear roads, no rain no traffic nothing and had my collision warning lights and sounds go off and not stop for up to 5-10 minutes.