Since the majority of the Siennas affected by the original problem were past their 3 year/36,000 mile warranty, Toyota issued a warranty enhancement to vehicles with up to 100,000 miles. Toyota will follow the same strategy with the latest problem, but will extend the warranty to six years, unlimited miles. Toyota is not calling either situation a recall.
The first warranty enhancement service was due to a bad spot weld on the Sienna's front doors that could possibly fail, causing the doors swing freely and unexpectedly shut. The rear liftgate of the Sienna suffers from a similar problem, causing it to have problems opening or staying up once it is open. 34 incidents have been reported with 14 minor injuries.
While Toyota isn't calling the situation a recall, it only adds to mounting quality concerns as the company attempts to become the world's largest automaker.