Summary
The Toyota Avalon has 20 recalls spanning 1997 through 2019, with the most serious recent issue affecting 2018-2019 models where the airbag control unit can fail to deploy airbags and seatbelt pretensioners in a crash due to a false fault detection during startup.
On 2012-2018 models, a separate airbag control unit issue can cause the same system to malfunction during certain crashes, again leaving airbags and pretensioners inactive when needed. The 2016 model year has a passenger knee airbag that may have been installed with incorrect fasteners that can loosen over time, affecting how that airbag deploys in a crash. On 2012-2013 models, a clogged air conditioning drain hose allows water to pool inside the condenser housing, and a short circuit from that water can disable airbags or trigger an unintended deployment. Two separate 2012 recall filings address seat belt buckles that were replaced with parts containing a faulty switch, causing the airbag system to read the belt as always fastened and potentially withhold deployment in a crash.
The 2011-2012 model years have a trunk-mounted subwoofer that can develop an electrical short in the audio amplifier, causing the subwoofer to overheat and creating a fire risk in the trunk. Going back to 2005, the steering yoke on some vehicles was not welded to the steering shaft, meaning the shaft can separate and leave the driver with no steering. Also on 2005 models, the accelerator pedal can become rough, slow to return, or stick in the depressed position, removing throttle control. The 2003-2004 model years have a supplemental restraint system defect where front airbags and seatbelt pretensioners can deploy without a crash, startling the driver and potentially causing a collision.
On 2000-2004 models, the steering lock bar can develop a crack that grows with repeated use until the bar breaks, locking the steering wheel and preventing the driver from steering the vehicle. The 2000 model year also has a rear axle shaft that can fail after extended use, causing a rear wheel to separate without warning. Going back to 2006-2011 models distributed through Southeast Toyota, seat heater wiring can be compressed and short circuit, causing the seat cushion material to burn. The 1997 model has a brake booster vacuum hose that can freeze and block in very cold conditions, reducing or eliminating power brake assist. The 1998 model, in certain southeastern US states, has a third-party theft deterrent system that can cause intermittent electrical faults affecting dashboard warning lights and the climate control fan.
