Nissan Titan 2016–2019 — technical service bulletin
Bulletin NTB19-037 · NHTSA communication 10160165 · issued Apr 23, 2019
Technical service bulletin
communication type
Engine
component
2016–2019
model years
4
vehicle entries
Official summary
2016-2019 TITAN; MIL ON WITH DTC P0448 AND WATER IN EVAP FILTER IF YOU CONFIRM The MIL is ON with DTC P0448 (EVAP canister vent control valve close) stored in the ECM and water is found in the EVAP filter, canister, or vent control valve ACTION Remove and replace the: - Fuel filler tube. - EVAP filter. - EVAP canister. - EVAP vent control valve. - EVAP pressure sensor. IMPORTANT: Before any parts are removed from the vehicle, note the EVAP filter orientation and hose routing (take a photo). Hose routing and EVAP filter orientation is critical and varies depending on production date.
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.