Toyota Vehicle - Telematics DCM Bypass kit

Item Number: AHH-DCM77

Disconnecting the Data Communication Module (DCM) on a Toyota vehicle will disconnect the front right speaker and disconnect power from your OEM handsfree microphone. Many customers would like to remove the DCM for security reasons and some vehicles have noted failures in this module causing unnecessary battery drain when the vehicle is not running. We have designed this adapter kit specifically for the purpose of removing the DCM module. These connectors will plug into the connectors that currently plug into the DCM module and retain the factory functions. This kit effectively rewires these vehicles so that they are wired the same as a vehicle that was not shipped with the DCM module.

Most of your vehicles safety features and Navigation options will not be impeded by installing this adapter but you may lose features that depend on communication with Toyota. An example will be the cloud-based/phone app factory remote start. Since this system requires an internet connection with Toyota to communicate the start signal to your vehicle, it will be disabled when that signal path is removed. In addition, Call Toyota functions will not work. Please don't hesitate to contact us if you have specific concerns.

Installation:

DCM Module Location by Vehicle:

For the full location diagram, photos, and access steps for your exact year, use our DCM location finder - the quick notes below are just a summary.

Vehicle	DCM Location
Toyota 4Runner (2020-2024)	In the dash on the passenger side, between the head unit and the glovebox - tight against the left side of the glovebox. Hard: the factory procedure removes an airbag assembly. See the location diagram and photos HERE
Toyota 4Runner (2025-2026)	Directly behind the HVAC controls in the center stack, below the radio screen. Involved: about a dozen trim steps and an airbag comes out. See the location diagram and photos HERE
Toyota Camry (2020-2024)	In the center dash, behind the A/C controls and under the head unit. The A/C control assembly and radio come out to reach it. See the location diagram and photos HERE
Toyota Camry (2025-2026)	Directly above the head unit, about six inches from it. See the location diagram and photos HERE
Toyota Corolla (2020-2022)	Behind the center dash, directly below the radio/display screen. Head unit out plus a trim panel or two, no airbag work. See the location diagram and photos HERE
Toyota Corolla (2023-2026)	Behind the center dash, just below the radio/display screen. Easy: two small kick panels and one screw - no head unit removal. See the location diagram and photos HERE
Toyota Prius / Prius Prime (2021-2022)	Behind the center dash, under the radio. See the location diagram and photos HERE
Toyota Prius / Prius Prime (2023-2026)	At the front of the center console, just below the radio and climate controls. See the location diagram and photos HERE
Toyota RAV4 (2020-2022)	Behind the center dash, under the radio and climate controls. See the location diagram and photos HERE
Toyota RAV4 (2023-2025)	Behind the center stack, up with the radio/display module. Lower center trim panel and climate control assembly out, then two bolts. See the location diagram and photos HERE
Toyota Sienna (2021-2026)	Behind the lower center dash, at the front of the console. Hard: the factory procedure removes an airbag assembly. See the location diagram and photos HERE
Toyota Tacoma (2020-2023, 3rd Gen)	Passenger side, behind the glovebox at the far outer end of the dash - against the outside of the truck. See the location diagram and photos HERE
Toyota Tacoma (2024-2026, 4th Gen)	Behind the A/C (climate) controls at the base of the center stack, under the head unit. Remove the console box assembly to access. See the location diagram and photos HERE
Toyota Tundra (2020-2021)	Passenger side of the dash, behind the glovebox area. See the location diagram and photos HERE
Toyota Tundra (2022-2026)	Driver side, low in the outer dash right in front of the driver's left knee. See the location diagram and photos HERE
Lexus IS300 / IS350 / IS500 (2021-2026)	Behind the instrument (gauge) cluster - not in the center stack with the radio. The cluster has to be removed. See the location diagram and photos HERE
Toyota Land Cruiser (250 Series, 2024+)	In the center console, directly under the phone holder. Take the shifter knob off, lift up the panel and you can squeeze your hand in to disconnect the DCM. See the location diagram and photos HERE

1) Find the DCM module (see table above for vehicle-specific locations).
2) Turn off the vehicle and disconnect one pole of the battery if you wish.
3) Disconnect all connectors from the DCM module, including the square white/off-white module and the longer gray connector.
4) Plug in the adapters in this kit.
5) Reassemble everything. Reconnect the battery. Install the DCM fuse (needed for powering the handsfree microphone). Start the vehicle and test!

Purchase:

Price: $90.00

Vehicle Fitment:

(If a known model is not listed, let us know)

Not sure where the DCM is in your vehicle?
Finding the module is the only tricky part of this install. Look up your year and model here for a location diagram, what has to come apart to reach it, and how long it takes.

Does your vehicle have a DCM? Not all Toyota/Lexus vehicles have a Data Communication Module. The DCM is part of the Safety Connect / Connected Services system. Look for an SOS or Call Toyota button near your rearview mirror or overhead console. If your vehicle does not have this button, it does not have a DCM and does not need this product. Some older Tacoma, Tundra, and Sequoia models were sold without Safety Connect depending on trim level and factory options.

⚠ 2026 Notice — RAV4 and ES: The 2026 Toyota RAV4 and the 2026 Lexus ES are both new generations and use a new connector type that is not compatible with AHH-DCM77 or AHH-DCM92. We are developing a new bypass adapter for these models. Please contact us for updates.

2023-2026 Subaru Solterra
2026 Subaru Trailseeker
2020-2026 Toyota 4Runner
2021-2022 Toyota Avalon
2026 Toyota bZ (renamed bZ4X)
2023-2025 Toyota bZ4X
2026 Toyota C-HR (battery-electric)
2020-2026 Toyota Camry
2020 Toyota Corolla built APRIL 2020 or later — check the build date on the driver door jamb, not the model year
2021-2026 Toyota Corolla
2023-2026 Toyota GR Corolla
2022-2026 Toyota Corolla Cross
2023-2026 Toyota Crown
2025-2026 Toyota Crown Signia
2024-2026 Toyota Grand Highlander (including Hybrid)
2020-2026 Toyota Highlander (including Hybrid)
2020-2026 Toyota Hilux — UK / Europe / Australia market only (never sold in the US); fitment confirmed against a customer’s module photos on a 2023 UK truck. The pre-2020 Hilux is an earlier facelift with different electrics and is NOT covered — contact us first.
2024-2027 Toyota Land Cruiser
2021-2022 Toyota Prius / Prius Prime WITHOUT factory navigation (standard radio) — navigation and JBL cars use the AHH-DCM92; not sure which you have? Check the DCM itself: three plugs (one a small USB lead to the radio) = this kit, two plugs = the AHH-DCM92
2023-2026 Toyota Prius
2020-2025 Toyota RAV4 (see 2026 notice above)
2020-2026 Toyota Sequoia
2021-2026 Toyota Sienna
2020-2026 Toyota Tacoma
2020-2026 Toyota Tundra
2025-2027 Toyota GR Yaris — Japan / Europe market only (never sold in the US); fitment CONFIRMED by a customer install — the module is under the A/C controls and you reach it by taking out the shifter surround
2021-2023 Toyota GR Yaris — same market note; the pre-facelift car has a different console and its fitment is not confirmed, please contact us first
2021-2024 Toyota Venza

2020-2025 Lexus ES250 / ES350 (see 2026 notice above)
2024-2026 Lexus GX550
2022-2023 Lexus GX460
2021-2026 Lexus IS300 / IS350 / IS500
2020 Lexus LC500 / LC500h built APRIL 2020 or later — check the build date on the driver door jamb, not the model year
2021-2026 Lexus LC500 / LC500 Convertible
2021-2025 Lexus LC500h
2018-2026 Lexus LS500 / LS500H
2022-2026 Lexus LX600 / LX700h
2022-2026 Lexus NX250 / NX350 / NX350H / NX450H+
2020-2021 Lexus NX300 (including NX300h)
2020-2025 Lexus RC300 / RC350 / RC F
2020-2022 Lexus RX350 / RX350L / RX450h
2023-2025 Lexus RX350 / RX350h / RX450h+ / RX500h
2023-2026 Lexus RZ350e / RZ450e
2024-2026 Lexus TX350 / TX500H / TX550H+
2019-2026 Lexus UX200 / UX250H / UX300H