Does the 4Runner come with a brake controller?
In brief, the Toyota 4Runner does not come with a factory-installed trailer brake controller as standard equipment. If you tow trailers, you’ll typically need to add an aftermarket brake controller or check for a dealer-installed integrated solution, depending on the year and trim.
The 4Runner is a long-running midsize SUV that Tow Package-equipped models can tow, but Toyota has not traditionally included an integrated brake controller as a built-in feature. This means that while you may get the necessary hitch and trailer wiring to connect a trailer, actual brake control for the trailer usually requires an aftermarket solution unless a specific dealer option is available for your vehicle.
What the Tow Package typically includes
To understand how you’ll connect trailer braking, it helps to know what the Tow Package usually adds. The list below covers the core components often bundled with the 4Runner’s towing upgrade, noting that an integrated trailer brake controller is not generally included.
- Class IV hitch receiver for heavy-duty towing
- 7-pin wiring harness to supply trailer signals (brake, turn, tail/marker lights)
- Trailer sway control or related stability aids where equipped
- Engine and transmission cooling enhancements to support sustained towing
- Possible additional cooling options and hardware to support higher-tower duty cycles
These components enable a trailer to connect and communicate basic signals, but they do not provide an integrated trailer brake controller. If you need active trailer braking, you’ll need a separate braking solution beyond what the Tow Package delivers.
Factory vs aftermarket brake control options
Understanding the braking control options helps you plan for safe towing. Most 4Runner buyers will encounter one of two paths: a factory/ dealer-installed option (if available for your year/ trim) or an aftermarket brake controller installed by a professional or DIY-savvy owner.
- Factory-integrated trailer brake controller: Historically rare on the 4Runner; not typically included in the standard Tow Package. Availability can vary by model year and market, so a dealer confirmation is essential.
- Aftermarket proportional brake controllers: Devices like Tekonsha Prodigy or similar, mounted under the dash with a remote head or display. They apply trailer brakes in proportion to the vehicle’s braking force for smoother stopping.
- Aftermarket time-delayed brake controllers: Simpler units that apply a fixed brake force for a set time after braking begins. Often a budget-friendly option.
- Wiring and installation considerations: You’ll need a power supply, a connection to the vehicle’s brake signal, and a stable ground. Some kits include a dash-mounted controller and a wiring harness that plugs into the 7-pin harness or a dedicated RV connector.
For most owners, an aftermarket controller offers the most straightforward path to reliable trailer braking, with a wide range of products and installation options. If you’re considering a dealer-installed ITBC (Integrated Trailer Brake Controller) kit, confirm availability for your exact vehicle year and trim, since it’s not universally offered on all 4Runners.
How to confirm for your specific vehicle
Given the variability by year, trim, and market, the best approach is to verify your exact vehicle’s specifications before purchasing or installing equipment. The steps below help you confirm whether a brake controller is included or available for your 4Runner.
- Check the window sticker or build sheet to see if a Tow Package or ITBC option is listed
- Review the official Toyota owner's manual or product brochure for your model year
- Ask your local Toyota dealer to verify via the VIN whether an integrated brake controller is installed or offered as an accessory
- Consider an aftermarket brake controller if ITBC is not available for your trim and year
In practice, most owners towing trailers with a 4Runner will opt for an aftermarket brake controller or confirm a dealer-installed option before purchase. This ensures reliable trailer braking and proper compliance with towing requirements for your specific setup.
Summary
Bottom line: the Toyota 4Runner does not come with a built-in trailer brake controller as standard, and the Tow Package does not typically include ITBC. If you need trailer braking, you’ll likely rely on an aftermarket controller or a dealer-installed option when available. Always verify with the dealer for your exact year, trim, and VIN to determine what is included or possible for your vehicle.
How do I know if my vehicle has a trailer brake controller?
How Do I Know If My Truck Has a Brake Controller? Most trucks come with a brake controller installed by the manufacture (OEM). The brake controller usually has an image of a trailer and you would see a dial and two small knobs.
Do 4Runners have a tow package?
It also comes with a factoryinstalled tow hitch and wiring. Harness. Next let me tell you a bit about the RV that I'm towing behind my 4Runner. I have a 19 ft escape travel trailer.
Does the 2025 4Runner have a brake controller?
This vehicle comes equipped with a Toyota Genuine Trailer Brake Controller. Use of a third-party trailer brake controller along with the Toyota Genuine Trailer Brake Controller may have unexpected effects on the system. Toyota does not recommend the use of a third-party brake controller with this vehicle.
Which year 4Runner to avoid?
You should avoid the 2003–2005 4Runners due to serious frame rust, head gasket issues, and dashboard cracking. Other years to consider avoiding are the 2001–2002 models for safety concerns and rust, and the 2015 model for infotainment and brake problems.
2003–2005 (Fourth Generation)
- Severe frame rust: This is a major issue, with many owners reporting the frame is irreparable.
- Head gasket failure: V6 models, in particular, are prone to head gasket issues, which can be a costly repair.
- Dashboard cracking: Owners have reported the dashboard cracking.
- Other issues: Includes reports of faulty anti-lock brake systems (ABS), air injection pump failures, and check engine light problems.
2001–2002 (Third Generation)
- Safety rating: These models have low crash test scores, particularly in rear impacts.
- Body rust: Prone to rust, making them unreliable for some families.
- Off-road limitations: Manual transmission and locking rear differentials were eliminated during these years.
2015 (Fifth Generation)
- Infotainment issues: This model is known for an unreliable infotainment system that freezes, restarts, and has Bluetooth connection problems.
- Brake problems: Owners have reported warped brake rotors.
- Steering complaints: There are more NHTSA complaints about steering problems compared to other fifth-gen models.
- Airbag defect: The 2015 is the only fifth-generation model with reported airbag non-deployment issues, which is a significant safety concern.
