Looking for recommendation for trailer brake controller

[EricGoleta]

I have a 25 Hybrid off road premium that has the towing package but I didn't realize that it does not have electronic brake controller. I'm looking for suggestions for one. I see the Redarc Tow-Pro Elite has good reviews. I tried to find a DIY videos but don't see any for 6th gens. Reading the install instructions from Google it seems pretty straight forward.

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[6Gen4RunnerOwner]

I have a 25 Hybrid off road premium that has the towing package but I didn't realize that it does not have electronic brake controller. I'm looking for suggestions for one. I see the Redarc Tow-Pro Elite has good reviews. I tried to find a DIY videos but don't see any for 6th gens. Reading the install instructions from Google it seems pretty straight forward.

I have the ORP with trailer package & back up centering. My brake controller system is on the dash left of the HVAC temp control knob. In the photo you can see a "+" sign. That's the controller half hidden.

 

[EricGoleta]

My ORP didn't come with the Toyota Tech trailer package, I have the basic tow package. I'm looking for recommendations for an after market controller. thanks

 

[6Gen4RunnerOwner]

My ORP didn't come with the Toyota Tech trailer package, I have the basic tow package. I'm looking for recommendations for an after market controller. thanks

Check with Toyota Parts Department. They may have a "retro fix" controller part number..

 

[EricGoleta]

I Googled it it says there isn't a Toyota part kit available. So I'm looking at others. REDARC has good reviews. But there are others.

 

[6Gen4RunnerOwner]

I Googled it it says there isn't a Toyota part kit available. So I'm looking at others. REDARC has good reviews. But there are others.

Toyota Parts::

 

[EricGoleta]

Wow, Thank you so much! It shows that AI searches in Google aren't always accurate.

 

[EricGoleta]

I used Google to find what it says as the full list of parts needed:
Required Toyota Genuine Parts
Part NamePart NumberPurposeBrake Control Relay89547-04031Completes the high-current circuit between the battery and the 7-way trailer plug.Trailer Brake Control Switch84391-AK010The user interface (the +/- buttons and manual override slide) that mounts in your dashboard.Brake Control ECU89547-0C012The "brain" of the system that processes braking signals and communicates with the vehicle's safety systems. Total cost with discount is $870.79.

Looking at the REDARC p/n CIKTP-NA-012 Tow-Pro Trail Kit at $320 and
Tow-Pro Toyota square switch blanks TPSI-011 for $13.

I Googled the question: If I install the factory kit above, is the Toyota tow tech software automatically activated?

Verification Checklist
Before you commit to the OEM parts:

• Plug Check: Locate that white connector under the dash. Ensure it has at least four wires going into it.
• Fuse Box Check: Open your interior fuse box and confirm the BRK CTRL slot is wired (has metal pins inside) to receive the relay.
• The "REDARC" Reality: If you find that the OEM software doesn't pop up after installation, it is almost always due to a missing physical wire in the harness rather than a software lock. This is why many 2025 owners are opting for the REDARC Tow-Pro Elite. It provides the same proportional braking performance without relying on the Toyota-specific digital display integration.

Summary: If the hardware is connected correctly to a functional factory harness, the software will activate itself. If it doesn't, it’s a sign of a missing wire in the loom rather than a need for a dealer software update.

Looks like the REDARC is a better for flexibility in on and off road camping.

 

[gvan1998]

Correct me if im wrong, i was told that you cant simply add a OEM switch, its tied into the ecu.

 

[EricGoleta]

Google says you need all 3 part numbers; maybe it is wrong?

Purpose Brake Control Relay 89547-04031 Completes the high-current circuit between the battery and the 7-way trailer plug.
Trailer Brake Control Switch 84391-AK010The user interface (the +/- buttons and manual override slide) that mounts in your dashboard.
Brake Control ECU 89547-0C012The "brain" of the system that processes braking signals and communicates with the vehicle's safety systems.
Total cost with discount is $870.79.

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