470961
Service Bulletin/Repair Instructions
The silicone sealant used to seal the vehicle may not adhere to all surfaces as intended. This may allow water to leak into the vehicle.
Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
470961
The silicone sealant used to seal the vehicle may not adhere to all surfaces as intended. This may allow water to leak into the vehicle.
800854
The manufacturing plant installed the winterization valve on the pressure side (vehicle side) of the water pump. The winterization valve should have been connected to the intake/suction side of the water pump. If the waterlines and water using components are not appropriately winterized from freezing, the components and waterlines may crack, break, etc. potentially voiding the component manufactures warranty.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.