The 2006 Volvo VNL has 3 recalls, the most serious being a steering drag link where the ball socket can separate and cause complete loss of steering control. This recall only affects trucks built with TRW sealed drag links; when certain conditions develop in the joint, the ball socket can pull free entirely, leaving the driver with no ability to steer.
The two remaining recalls cover the same brake defect and should be treated as one issue: on trucks equipped with super single tires and Volvo air suspension, vibration from the suspension can cause fatigue cracks to develop in the mounting brackets that hold the brake cam tubes in place. Over time those cracks grow until the bracket fails, at which point the affected wheel end loses braking ability, reducing overall stopping power and raising the risk of a crash.