TSB Document:

Affected Component: ENGINE AND ENGINE COOLING

Summary
TT: Some 17-22MY Highlander, and 17-20MY Sienna vehicles with engine serial numbers that start with F or G may experience an engine oil leak condition from the No.2 Oil pan. This issue is currently under investigation. Please take detailed pictures of the oil pan leak condition before repair. If condition is on applicable vehicles with engine serial numbers that do not start with F or G, disregard, and proceed with normal repair.

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Date Published
MAR 21, 2022
NHTSA TSB #
10214329
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