One problem related to adaptive cruise control has been reported for the 2021 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Toyota Tundra based on all problems reported for the 2021 Tundra.
The contact owns a 2021 Toyota Tundra. The contact stated while driving at various speeds using adaptive cruise control mode, the rear brake lights failed to illuminate whenever the vehicle slowed down independently. The dealer was not notified of the failure. The vehicle was not diagnosed nor repaired. The manufacturer was informed of failure and the contact was awaiting a call back from the manufacturer. The failure mileage was approximately 3,000.