Service bulletin T-TT-0322-15 REV

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10096095
Published by NHTSA	2017-03-21
Manufacturer's number	T-TT-0322-15 REV
Manufacturer's date	2016-01-07
NHTSA component	VISIBILITY:SUN/MOON ROOF ASSEMBLY

NHTSA's summary

TECH TIP: SOME VEHICLES MAY EXPERIENCE A CONDITION IN WHICH THE DRAIN HOSES FOR THE SUNROOF/MOONROOF ASSEMBLY BECOME KINKED, OR PINCHED. THIS MAY CAUSE WATER LEAKS INTO THE CABIN FROM THE HOUSING ASSEMBLY DRIP TRAYS, OR THE CUSTOMER MAY NOTE WATER STAINS ON THE HEADLINER ASSEMBLY.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Glass, wipers and mirrors, Sunroof

Vehicles listed
TOYOTA HIGHLANDER	2014, 2015
TOYOTA HIGHLANDER HYBRID	2014, 2015 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
T-TT-0322-15 Rev	2018-04-23. Service bulletin. Tech Tip: Some vehicles may experience a condition in which the drain hoses for the sunroof/moonroof assembly become kinked, or pinched. This may cause water leaks into the cabin from the housing assembly drip trays, or the customer may note water stains on the headliner assembly.
T-SB-0047-15	2017-08-14. Service bulletin. TSB: Some 2014 - 2015 model year Highlander/Highlander HV vehicles may exhibit a condition in which the panoramic sunroof seal is bulging, not sitting properly, torn, has water or air leaks into the vehicle cabin, has poor appearance, or is tucking in any corner. This condition can also be exhibited during the function of the panoramic sunroof, in which the seal may tear or separate from the housing. Follow the procedures in this bulletin to address these conditions.
T-TT-0322-15	2017-08-14. Service bulletin. TT: Some vehicles may experience a condition in which the drain hoses for the sunroof/moon roof assembly become kinked, or pinched. This may cause water leaks into the cabin from the housing assembly drip trays, or the customer may note water stains on the headliner assembly.
T-TT-0322-15	2017-08-14. Service bulletin. TT: Some vehicles may experience a condition in which the drain hoses for the sunroof/moon roof assembly become kinked, or pinched. This may cause water leaks into the cabin from the housing assembly drip trays, or the customer may note water stains on the headliner assembly.
T-SB-0047-15	2017-08-14. Service bulletin. TSB: Some 2014 - 2015 model year Highlander/Highlander HV vehicles may exhibit a condition in which the panoramic sunroof seal is bulging, not sitting properly, torn, has water or air leaks into the vehicle cabin, has poor appearance, or is tucking in any corner. This condition can also be exhibited during the function of the panoramic sunroof, in which the seal may tear or separate from the housing. Follow the procedures in this bulletin to address these conditions.