Toyota Venza rear noise issue due to unavailable differential parts on Toyota Venza

Some Toyota Venza owners report experiencing rear noise issues related to the differential parts, including a constant screeching sound from the coupler or rear differential that intensifies with speed. Additionally, some owners have noted a "whirring" noise from the rear, which may be caused by a transaxle leak due to a clogged vent on the axle. There are instances where the entire rear differential assembly, including the electromagnetic coupler, needed replacement due to blown rear-axle seals from a rusted breather valve. Some Venza owners have also described a clunking noise during cold starts, linked to an ABS check by Toyota. Furthermore, reports indicate that damaged parts like the transmission coupling assembly and ball bearing assemblies can lead to abnormal noises, and rusted screws have sometimes required costly replacements, although these may be covered under warranty. These issues underscore the necessity for regular maintenance and prompt attention to unusual sounds to avoid further damage and expensive repairs.