The 2016 Toyota Avalon has 4 recalls, the most serious affecting Hybrid models only, where the front driveshaft can separate and cause a sudden loss of power while driving, leaving the vehicle at risk of rolling if the parking brake is not set.
Three of the four recalls involve the airbag system. The passenger seat sensor that determines whether to activate or suppress the front passenger airbag may have been incorrectly calibrated, meaning the airbag could deploy when it should not, or stay off when it should fire, in a crash. The front passenger knee airbag may have been installed with the wrong fasteners, which can loosen over time and cause that airbag to deploy improperly when needed. There is also a concern with the airbag control module itself: during certain crash events, the module can malfunction and cut off the signal to the airbags and seatbelt pretensioners, leaving both systems inactive at the moment of impact and preventing the seatbelts from locking tight against occupants.