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Service bulletin T-SB-0166-19

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)
TypeService bulletin
NHTSA id10170730
Published by NHTSA2020-01-27
Manufacturer's numberT-SB-0166-19
Manufacturer's date2019-12-06
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; ENGINE

NHTSA's summary

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 Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded.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 document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Equipment and accessories

Trouble codes named

P0171, P0172, P0174, P0175, P1604

Vehicles listed
TOYOTA SEQUOIA2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
TOYOTA TUNDRA2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019

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

Recalls for the same vehicles and component
19V2440002019-03-27. EQUIPMENT:OTHER:LABELS
18V9000002018-12-19. EQUIPMENT:OTHER:LABELS
18V7110002018-10-11. EQUIPMENT:OTHER:LABELS
17V8310002017-12-20. EQUIPMENT:OTHER:LABELS
16V4200002016-06-09. EQUIPMENT:OTHER:LABELS
15V3150002015-05-27. EQUIPMENT:OTHER:LABELS; TIRES
20133532013-10-10. Accessories
13V1230002013-04-09. EQUIPMENT:OTHER:LABELS
11V5880002011-12-14. EQUIPMENT:OTHER:LABELS
20101242010-04-19. Accessories

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
T-SB-0103-20 Rev12024-07-23. Service bulletin. This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
T-SB-0103-20 Rev12024-07-23. Service bulletin. This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
T-PANT-2024-004-2024-04-15. Service bulletin. This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the Toyota Complete Maintenance Care (TCMC) website.
20TD01a2024-04-01. Service bulletin. TI: 20TD01 Expired on March 31, 2023 TECHNICAL INSTRUCTIONS FOR LIMITED SERVICE CAMPAIGN 20TD01 POTENTIALLY INCORRECT CARPET FLOOR MATS CERTAIN 2012-2019 Sequoia
20TD012024-04-01. Service bulletin. DP: 20TD01 Expired on March 31, 2023 There is a possibility that some of the involved 2012-2019 Sequoias received a Toyota Genuine carpet floor mat set that is designed for different model year Sequoia vehicles (model years 2008-2011). If installed, the driver?s floor mat would not be secured in the way it was designed due to differences in the attachment grommets
T-SB-0043-142024-03-04. Service bulletin. OBSOLETE NOTICE January 22, 2024: This bulletin is now obsolete. Please see T-SB-0057-18.
TSB0026202023-12-26. Service bulletin. TSB: All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and 2018 ? 2021 model year Tundra vehicles are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise Control (DRCC) as part of the Toyota Safety Sense (TSS) package. The PCS and DRCC systems are designed to help mitigate a potential collision and maintain a pre-determined traveling distance. It is recommended to disable the PCS and DRCC systems on vehicles that have been modified (ride height, oversized wheels/tires, brush bars, etc.) in a way that potentially disrupts the functionality of these systems. Vehicle owner?s written consent is required before performing the calibration to permanently disable the PCS and DRCC systems. Follow the Repair Procedure in this bulletin to disable the PCS and DRCC systems.
TSB0032202023-10-16. Service bulletin. TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2023 model year vehicles may be available provided the requests meet the criteria listed in this Service Bulletin. Follow the Procurement Procedure in this bulletin to request a replacement certification label or VIN plate.
T-SB-0057-182023-06-26. Service bulletin. TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system.
TSB0009232023-05-01. Service bulletin. TSB: Some 2014 ? 2020 model year Toyota vehicles 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 P0087 Fuel Rail / System Pressure ? Too Low Techstream data list analysis may reveal positive fuel trims including a no pressure condition verified by a manual fuel pressure gauge. Follow the Repair Procedure in this bulletin to address these conditions.