dcm

Please see Limited Service Campaign (LSC) 22TD03 (Link Needed) Condition: The subject vehicles are equipped with a DCM (Data Communication Module), a device that provides cellular communication with Toyota Connected Services. The DCM activation was not completed during vehicle delivery. An...

Please see T-TT-0572-19 Revision 3 CONDITION: Some 2020 model year Camry, Camry HV, RAV4, RAV4 HV, and Corolla Hatchback vehicles equipped with a DCM may exhibit a B15A8** DTC (most likely B15A804) in history during PDS. This DTC can be triggered during the manufacturing and/or shipping...

Please see Tech Tip T-TT-0688-22 APPLICABLE VEHICLES: 2022 Toyota Tundra CONDITION: Some customers may encounter wireless connectivity concerns such as:  Difficulty to connect or start using the wireless CarPlay  Intermittent wireless connection failed error message when driving or first...

Please see SPECIAL SERVICE CAMPAIGN 22TC01 Check here to see if this Recall applies to your Toyota vehicle TECHNICAL INSTRUCTIONS FOR 22TC01 APPLICABLE VEHICLES: Condition: Due to improper programming of the Data Communication Module (DCM), which provides cellular communication in various...

If you run across a 2020-2021 Toyota model with remote start and the customer concern is that the vehicle stays running after opening the front door (remote start), then you may want to replace the DCM.

Please see T-SB-0089-21 Revision 2 REVISION NOTICE: June 07, 2022 Rev2 The Introduction and DCM Reset and Firmware Update Procedure sections have been updated. April 11, 2022 Rev1 The Applicability, Introduction, and DCM Reset and Firmware Update Procedure sections have been updated. Any...

Corolla Hatchback High Frequency sound intermittently when ignition on from RF interior. Sound lasts about 2 seconds. The fix was to replace the DCM module.

Please see T-SB-0047-21 Applicability: 2021 Toyota C-HR Introduction: Some 2021 model year C-HR vehicles may exhibit a red SOS light ON with Diagnostic Trouble Code (DTC) B15A804 (DCM System Internal Failure) in history during Pre-Delivery Service (PDS). Follow the Repair Procedure in this...

Please see T-SB-0022-21 Applicability: 2018 Toyota Sienna Introduction: Some 2018 model year Sienna vehicles with DCM (Data Communication Module), not equipped with JBL audio may exhibit a condition in which the call volume is low when making a Safety Connect Call through the vehicle. Follow...

Please see T-TT-0625-20 APPLICABLE VEHICLES: 2021 Corolla Hybrid 2021 RAV4 Prime 2020 RAV4 2020 Camry 2020 Corolla Hatchback 2020 RAV4 Hybrid 2021 Corolla 2020 Camry Hybrid CONDITION: A 12V Battery Discharged and / or Dead condition can be due to multiple causes. In order to properly...

Please see T-TT-0627-20 and also T-SB-0095-20 Rev2 2020-2021 LG DCM equipped vehicles APPLICABLE VEHICLES: 2021 Avalon HV 2021 Venza HV 2021 RAV4 Prime 2020-2021 RAV4 2020-2021 Camry 2020-2021 Corolla Hatchback 2020-2021 RAV4 HV 2021 Corolla 2020-2021 Camry HV 2021 Avalon CONDITION...

Please see T-SB-0112-20 Revision 1 Applicability: 2019 Avalon, Avalon HV, Corolla Hatchback, Highlander, Highlander HV, RAV4, RAV4 HV 2020 Corolla, Corolla HV, Prius, Prius Prime 2018-2020 Sienna REVISION NOTICE: September 10, 2021 Rev1: The bulletin title and Repair Procedure section have...

Please see Tech Tip T-TT-0634-20 APPLICABLE VEHICLES: 2020-2021 Toyota Models CONDITION: Some vehicles may experience an issue related to the DCM, the following information is consolidating the available diagnostic information in one document. RECOMMENDATIONS: System Assessment: 1. Bulb...

This TSB (T-SB-0021-20 Revision 2) is now Obsolete and has been replaced with T-SB-0095-20 Revision 1 . You can read the Obsolete TSB and New TSB below. Original TSB can be read here even though it is now Obsolete. You can see the Obsoletion here.... The new TSB T-SB-0095-20 Revision 1 can...

THIS TSB IS NOW OBSOLETE. PLEASE SEE T-SB-0089-21 Please Read T-SB-0095-20 Revision 2 **In our opinion, this LG Firmware update was released in an effort to fix the DCM from staying active and pinging, this was causing quite a few no start (had to jump start) conditions in 2020-2021 Toyota...

Please see Tech Tip T-TT-0631-20 APPLICABLE VEHICLES: 2019-2020 Avalon Hybrid 2018-2020 Mirai 2019 C-HR 2018-2020 Sienna 2019 RAV4 2018-2019 Camry 2019 Corolla Hatchback 2020 Prius Prime 2020 Prius 2020 Corolla 2018-2019 Camry Hybrid 2019-2020 Avalon CONDITION NOTE: This document only...

Please See Tech Tip T-TT-0575-19 APPLICABLE VEHICLES: 2020 Tacoma 2020 Tundra 2020 4Runner 2020 Camry 2020 Corolla Hatchback 2020 Sequoia 2020 Camry HV CONDITION: Some new vehicles may experience the SOS/Telematics functions inoperative during Pre-Delivery Inspection or after...

See Toyota Tech Tip T-TT-0516-18 CONDITION: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM (Telematics transceiver) inoperative conditions, refer to the procedure...

This bulletin T-SB-0019-19 details the supplemental procedure to confirm Telematics Data Communication Module (DCM) activation for applicable 2017 – 2019 model year Toyota vehicles after the process is initiated by Techstream. The steps outlined in this bulletin include: *Techstream Messages...

Please see Tech Tip T-TT-0442-17 Revision 3 APPLICABLE VEHICLES: 2011-2020 Sienna 2010-2011, 2013- 2020 Land Cruiser 2012-2015 Prius PHV 2012-2020 Camry 2010-2020 Prius 2012-2018 Prius V 2013-2020 Avalon 2020 Avalon Hybrid 2014-2020 Highlander 2020 Highlander Hybrid 2020 Tacoma 2020 Tundra...