Service bulletin TC-14-001

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	10055245
Published by NHTSA	2014-04-25
Manufacturer's number	TC-14-001
Manufacturer's date	2014-01-22
NHTSA component	AIR BAGS; ELECTRICAL SYSTEM

NHTSA's summary

TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THERE IS AN EXCESSIVE ELECTRICAL RESISTANCE, ON SOME VEHICLES, WHERE THE CONNECTOR HAD BEEN IMPROPERLY CRIMPED, DURING TIME OF MANUFACTURING, AND OXIDIZATION BUILDUP, IN CONNECTOR, RESULT IN AN ILLUMINATION OF AIRBAG WARNING LAMP. SEE TSB-0069-12 REV 2. MODEL 2004-2009 SIENNA. *PE

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

Air bags, Electrical system

Vehicles listed
TOYOTA SIENNA	2004, 2005, 2006, 2007, 2008, 2009

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

Recalls for the same vehicles and component
2021723	2021-11-24. Electrical

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
TSB003220	2023-10-16. 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-0057-18	2023-06-26. 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.
T-SB-0094-21 Rev	2022-12-19. Service bulletin. TSB: Some 2005 ? 2022 model year Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty smell is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this service bulletin is to provide general guidelines and procedures for odor remediation. This service bulletin provides a guide on how to prepare the interior of the vehicle prior to an odor remediation being performed, as well as contact information for an approved vendor who will arrange the remediation, and instructions on how to prepare the interior of the vehicle for reassembly once the remediation has been completed. Refer to all model and model year specific Repair Manuals and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines. This service bulletin is to provide a general overview and direction for the odor remediation process.
Toyota Safety Re	2021-04-19. Service bulletin. Toyota Safety Recall and Service Campaign - Technician Certification Requirements
T-TT-0578-19 Rev	2020-11-23. Service bulletin. TT: Some customers may encounter Bluetooth® connectivity concerns such as: ?Difficulty to pair the phone. ?Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ?Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
T-SB-0134-16-Rev	2019-09-03. Service bulletin. TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Service Bulletin No. T-SB-0012-13 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information. NOTE ECU is a Toyota term used to describe integrated computerized devices responsible for managing the operation of a system or subsystem. For the purposes of this bulletin, the term ?ECU? is used as a generic label for the following SAE J1930 standard references: ? Powertrain Control Module (PCM) ? Engine Control Module (ECM) ? Transmission Control Module (TCM) ? Any other Toyota specific control unit
T-TT-0414-16-Rev	2019-03-25. Service bulletin. TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone. ? Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ? Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
ZE6-WPB POL14-11	2018-12-17. Service bulletin. WPB: Toyota has received reports where some vehicles may exhibit cracked and/or sticky/melting dashboards as a result of heat or humidity. In Mid-December, 2014, Toyota announced the reimbursement Phase of this warranty enhancement program. Since prior to that announcement, Toyota has been diligently making parts preparations for the parts replacement phase of this Program. Due to the age, volume, and breadth of the covered vehicles subject to the Program and the size and complexity of dashboard manufacturing, Toyota has launched the part replacement portion of this Program in several phases; please refer to the table below for part replacement model phasing.
ZE6-Dealer Lette	2018-12-17. Service bulletin. DL: In our continuing efforts to ensure the best in customer satisfaction, Toyota has announced a Warranty Enhancement Program (the ?Program?). This Program extends the warranty coverage for repairs related to cracked and/or sticky/melting Dashboards (Instrument Panels) as a result of heat or humidity on 2003-2005 model year 4Runner, 2005-2010 model year Avalon, 2007-2011 model year Camry and Camry Hybrid, 2004-2010 model year Sienna, and 2004-2008 model year Solara vehicles.
TSB018217	2018-12-17. Service bulletin. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0101-11. Applicability has been updated to include 2016 ? 2017 model year vehicles. Service Bulletin No. T-SB-0101-11 is Obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants, cleaners, and automotive chemicals contain silicone or other compounds that may contaminate electrical contacts, and therefore increase electrical resistance and decrease switch performance. The use of any cleaners or fluids may increase the risk of further damage to electrical components.