Toyota Avalon digital door locks intermittently unresponsive, possibly affected by sunlight on Toyota Avalon

Some Toyota Avalon owners report experiencing intermittent issues with digital door locks, particularly related to sunlight interference. These problems often manifest as the door locks and trunk releases not functioning properly from the key fob or lock buttons inside the vehicle. A common cause identified is a dead battery within the key fob, which can usually be resolved by checking and replacing it. Additionally, sunlight exposure can affect the electronic components responsible for the door lock system, suggesting that parking in shaded areas or using sunshades might help mitigate these issues. Owners are also advised to inspect the fuse controlling the power door locks and trunk release, as a blown fuse can disrupt these functions. For those with push-button start models, understanding the correct procedure for using the mechanical key from the fob is essential to prevent operational issues. In cases where all locks except the driver's door won't unlock, specific problems with the locking mechanism or electronic system may need to be addressed. By taking these steps, owners can troubleshoot and potentially resolve the unresponsiveness of the digital door locks on their Toyota Avalon.