TSB: Some 2022 model year Tacoma vehicles may exhibit a coolant leak, coolant dripping onto the
ground, or high engine coolant temperature. The coolant leak may occur from the rear of the
engine and drip down the transmission bell housing. Upon further inspection, coolant may be
leaking from the union between the Rear Water By-Pass Joint and the No.1 Water Outlet Pipe
(see Figure 1). Follow the Repair Procedure in this bulletin to address this condition.
