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Service bulletins for the 2011 Toyota Sequoia

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.

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

About P0174 on the 2011 Toyota Sequoia: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P0174 are shown. Show all

Bulletins, newest first
T-SB-0166-19_Rev2020-02-18. Service bulletin. ENGINE AND ENGINE COOLING. TSB: REVISION NOTICE January 23, 2020 Rev1: G1439 The Parts Information, Calibration Information, and Repair Procedure sections have been updated. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13.Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ? 2018 model year Sequoia and 2009 ? 2019 model year Tundra vehicles equipped with a 3UR-FBE engine may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ? DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2) ? DTC P0172 and/or P0175 (System Too Rich Bank 1/Bank 2) ? DTC P1604 (Startability Malfunction) Techstream data list analysis may reveal negative fuel trims and an elevated alcohol density estimate relative to the vehicle?s actual fuel alcohol content. Follow the Repair Procedure in this bulletin to address these conditions.
T-SB-0166-192020-01-27. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13. Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ? 2018 model year Sequoia and 2009 ? 2019 model year Tundra vehicles equipped with a 3UR-FBE engine may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs). ? DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2) ? DTC P0172 and/or P0175 (System Too Rich Bank 1/Bank 2) ? DTC P1604 (Startability Malfunction) Techstream Data List analysis may reveal negative fuel trims and an elevated alcohol density estimate relative to the vehicle?s actual fuel alcohol content. Follow the Repair Procedure in this bulletin to address this condition.

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