Service bulletin T-SB-0021-18_Rev
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10142879 |
| Published by NHTSA | 2018-07-16 |
| Manufacturer's number | T-SB-0021-18_Rev |
| Manufacturer's date | 2018-06-12 |
| NHTSA component | VISIBILITY; ELECTRICAL SYSTEM |
NHTSA's summary
TSB: REVISION NOTICE June 12, 2018 Rev1: ? The Production Change Information section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2018 model year Sequoia vehicles equipped with Blind Spot Monitor (BSM) and auto-dimming mirrors may exhibit a BSM warning message in the combination meter immediately after engine startup and an inoperative BSM system with Diagnostic Trouble Codes (DTCs) C1AB4 (Open in Outer Mirror Indicator [Master]) or C1AB5 (Open in Outer Mirror Indicator [Slave]). 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
Electrical system, Glass, wipers and mirrors
Trouble codes named
C1AB4, C1AB5
| TOYOTA SEQUOIA | 2018 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2021723 | 2021-11-24. Electrical |
|---|---|
| 18V685000 | 2018-10-04. ELECTRICAL SYSTEM:SOFTWARE; AIR BAGS |
| 2018100 | 2018-02-21. Electrical |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| T-TT-0790-25 | 2025-09-09. Service bulletin. Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. |
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| T-SB-0058-23 Rev1 | 2025-07-10. Service campaign. The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks. |
| TSB002620 | 2023-12-26. 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. |
| TSB005823 | 2023-10-16. Service bulletin. TSB: The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. Follow the procedures outlined in this service bulletin to aid in locating, inspecting, and repairing refrigerant leaks |
| 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. |
| TSB004522Rev1 | 2022-10-17. Service bulletin. TSB: Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions 010171, 010170, or 01017D) may exhibit one or more of the following conditions: ?Head unit reboots at a specific location. ?Abnormal Destination Search app operation. ?Rebooting caused by no songs on the USB-connected iPhone. ?A one-time reboot after ignition is cycled to ACC-ON. ?Audio stays muted after the key is cycled. Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 010144), Entune? Audio Plus (version 01015E), Entune? Premium Audio (version 010182), or earlier may exhibit one or more of the following conditions: ?Head unit reboots intermittently. ?Home screen intermittently half blank after shifting out of reverse, if the driver uses reverse after using the maintenance reminder screen. ?Screen freezes during an incoming phone call. ?Incorrect time displays on the diagnostic menu. ?Radio station information does not match the radio station that is playing.?Abnormal playlist browsing operation. ?Mute stays enabled after key cycle. ??Search along my route? is inoperative. ?Traffic data scales improperly. ?Unit of measure is missing from distance to destination (showing ?11? instead of ?11mi/km?). ?Multi-information display (MID) compass does not match navigation screen when switching to North up. ?Navigation does not match MID when switching from miles to kilometers. ?Speed limit is blank on navigation screen. ?Go button on VR screen is inoperative. Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 010145), Entune? Audio Plus (version 010161), Entune? Premium Audio (version 010189), or earlier may exhibit one of the following conditions: ?Map will not display after it has been reprogrammed from the map micro SD card. Updated system software is now |
| TSB004522Rev1 | 2022-09-15. Service bulletin. TSB: Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions 010171, 010170, or 01017D) may exhibit one or more of the following conditions: ?Head unit reboots at a specific location. ?Abnormal Destination Search app operation. ?Rebooting caused by no songs on the USB-connected iPhone. ?A one-time reboot after ignition is cycled to ACC-ON. ?Audio stays muted after the key is cycled. |
| T-SB-0045-22 | 2022-05-16. Service bulletin. Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions 010171, 010170, or 01017D) may exhibit one or more of the following conditions: ?Head unit reboots at a specific location. ?Abnormal Destination Search app operation. ?Rebooting caused by no songs on the USB-connected iPhone. ?A one-time reboot after ignition is cycled to ACC-ON. ?Audio stays muted after the key is cycled. Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 010144), Entune? Audio Plus (version 01015E), Entune? Premium Audio (version 010182), or earlier may exhibit one or more of the following conditions: ?Head unit reboots intermittently. ?Home screen intermittently half blank after shifting out of reverse, if the driver uses reverse after using the maintenance reminder screen. ?Screen freezes during an incoming phone call. ?Incorrect time displays on the diagnostic menu. ?Radio station information does not match the radio station that is playing.?Abnormal playlist browsing operation. ?Mute stays enabled after key cycle. ??Search along my route? is inoperative. ?Traffic data scales improperly. ?Unit of measure is missing from distance to destination (showing ?11? instead of ?11mi/km?). ?Multi-information display (MID) compass does not match navigation screen when switching to North up. ?Navigation does not match MID when switching from miles to kilometers. ?Speed limit is blank on navigation screen. ?Go button on VR screen is inoperative. Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 010145), Entune? Audio Plus (version 010161), Entune? Premium Audio (version 010189), or earlier may exhibit one of the following conditions: ?Map will not display after it has been reprogrammed from the map micro SD card. Updated system software is now avail |
| T-TT-0687-22 | 2022-04-18. Service bulletin. TT: When customers have a concern about a discharged battery, no start, or general battery concern, the DCA-8000 is the only appropriate tool to use for diagnosis |
| T-SB-0042-20 Rev | 2022-03-14. Service bulletin. TSB: Some 2018 ? 2020 model year Sequoia and Tundra vehicles equipped with a sliding sunroof or moonroof may exhibit a binding, seizing, or sticking condition when attempting to open or close. In some cases, a clicking noise is present when the sliding sunroof or moonroof is stuck open or closed. This condition may be caused by rusted or seized sliding roof cables |