Affected Component: BACK OVER PREVENTION

Date Published
MAR 23, 2023
NHTSA TSB #
10234336
TSB Document
Summary
TT: Some 2021- 2023 Sienna HV vehicles may duplicate an abnormal noise (Growl, Humming and/or other) from the Hybrid T/A at various vehicle speeds and normal drive conditions. Please contact TAS for diagnostic instructions to aid in resolution of the condition.