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Service bulletins for the 2022 Toyota Sienna

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.

132 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
22TC05 Dealer Pa2022-09-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. DP: The subject vehicles may have been equipped with an engine containing an incorrectly manufactured Crankcase Case Vent. If the engine is equipped with an incorrectly manufactured Crankcase Case Vent, the vehicle may not comply with certain Federal emissions regulations
22TC05 Technical2022-09-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. TI: TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 22TC05 Crankcase Case Vent
22TC05 Dealer Pa2022-09-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). DP: The subject vehicles may have been equipped with an engine containing an incorrectly manufactured Crankcase Case Vent. If the engine is equipped with an incorrectly manufactured Crankcase Case Vent, the vehicle may not comply with certain Federal emissions regulations.
T-TT-0694-22 Rev2022-09-15. Service bulletin. ENGINE AND ENGINE COOLING. TT: After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087. Upon investigation, it is found that the engine ECU has been damaged and needs to be replaced (Fig 1). In several cases, it was found that the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the jumper cables are hooked up on or around the engine ECU or ECU mounting bracket
22TC05 Region Le2022-09-15. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. RL: The subject vehicles may have been equipped with an engine containing an incorrectly manufactured Crankcase Case Vent. If the engine is equipped with an incorrectly manufactured Crankcase Case Vent, the vehicle may not comply with certain Federal emissions regulations.
22TC05 Dealer Pa2022-09-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). DP: The subject vehicles may have been equipped with an engine containing an incorrectly manufactured Crankcase Case Vent. If the engine is equipped with an incorrectly manufactured Crankcase Case Vent, the vehicle may release crankcase emissions
T-TT-0702-222022-08-15. Service bulletin. ENGINE AND ENGINE COOLING. TT: Some 2020-2022 vehicles equipped with North American Produced (NAP) A25A-FKS/FXS engines may experience an oil leak from the head/valve cover gasket. This issue is currently under investigation.
T-SB-0104-212022-01-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE. TSB: Some 2018 ? 2022 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, or M20A-FKS engine may exhibit one or more of the following conditions: ?Milky/Discolored engine oil. ?An ?Oil Pressure Low? warning message on the Multi-information Display (MID). ?A MIL ON condition with Diagnostic Trouble Codes (DTCs) P05202A (Engine Oil Pressure Sensor/Switch "A" Signal Stuck in Range) and/or P052477 (Engine Oil Pressure too low [Severe]). Moisture from blow-by gases condenses and accumulates in the engine oil during short trips in extreme cold weather. When the moisture in the oil freezes, the oil pressure may drop, and the aforementioned warning indicators may display. Follow the procedures in this bulletin to address these conditions.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.