Night Pager ST BUTTERFLY Steering Wheel Switch Box For Toyota Yaris GR

Night Pager ST BUTTERFLY is a Toyota GR Yaris-specific steering wheel switch box designed to retain key factory steering wheel controls when upgrading to an aftermarket steering wheel. Its compact, motorsport-inspired design integrates essential vehicle functions into a CNC-machined aluminium housing, helping maintain convenient control without compromising the driving experience.

Night Pager ST BUTTERFLY Switch Box features dedicated control groups operated by five-way joystick switches and push-button switches. Depending on vehicle specification, these controls can operate functions such as the audio system, navigation and cruise control. Four switches illuminate in sync with the vehicle’s instrument lighting, improving visibility during night driving.

Compact 14 mm-thick housing is CNC-machined from aluminium and finished in black anodising for a durable, lightweight and motorsport-inspired appearance. The reverse side features a laser-engraved “MADE IN TOKYO” marking.

A vehicle-specific wiring harness is included to simplify connection to the original vehicle wiring. The harness uses vehicle-specific connectors; however, wiring modifications may be required on certain vehicles.

Night Pager ST BUTTERFLY Switch Box is designed for use with aftermarket steering wheels and is compatible with both deep-dish and semi-dish designs. Optional 40 mm and 50 mm extension shafts are available to help position the steering wheel to suit its shape. It is also compatible with MOMO and Nardi steering wheel boss fitting patterns.

Four five-way switch controls can be assigned to functions such as VOLUME and SEEK, depending on the vehicle. The supplied panel labels identify the functions assigned to each control group. These labels feature a UV-resistant film. Switch assignments and illumination colour are fixed and cannot be customised using a computer or smartphone.

Night Pager ST BUTTERFLY Switch Box can be combined with the paddle shifters, providing a coordinated steering wheel control and paddle-shift setup for compatible applications. A separate flat ring is available for steering wheels that do not have a central horn-button mounting position.

Product Specifications

• Application: Toyota GR Yaris

• Material: Aluminium

• Finish: Black anodised

• Housing thickness: 14 mm

• Switch type: Five-way joystick switches and push-button switches

• Illumination: Four switches linked to the vehicle’s instrument lighting

• Steering wheel boss compatibility: MOMO and Nardi fitting patterns

• Included: Vehicle-specific wiring harness and panel labels

• Manufacturing: Made in Tokyo, Japan

Compatible Steering Wheel Components and Combinations

The Night Pager ST BUTTERFLY for the Toyota GR Yaris can be combined with other steering wheel components to create a customised motorsport-inspired setup. Compatible options include the following:

• Works Bell Rapfix GTC / Night Pager GTC FE set: Can be combined with the ST BUTTERFLY to provide an integrated steering wheel setup. Works Bell WB P/N 550 boss is recommended to provide sufficient clearance for cable movement. If using the shorter Work Bell Rapfix 550S boss, a 20 mm spacer is required.

• Works Bell Paddle Shifter / Night Pager PADDLE SHIFTER RZ: Can be combined with the ST BUTTERFLY on compatible GR-DAT (8-speed automatic, 4WD) models, integrating steering wheel controls with paddle-shift functionality.

• Works Bell Rapfix II Quick Release kit: A dedicated 16-pin link kit is available to connect the ST BUTTERFLY with the RAPFIX II quick-release system.

Please confirm compatibility between the selected components, steering wheel and boss kit before ordering. When ordering the ST BUTTERFLY, specify whether the factory-fitted steering wheel has one MODE switch or two.

⚠ Important Fitment Information

Night Pager ST BUTTERFLY Switch Box cannot be fitted to the original factory steering wheel. An aftermarket steering wheel or compatible mounting arrangement with six M5 screw mounting points is required. A separate steering wheel boss kit and steering wheel must be purchased; a Works Bell boss kit is strongly recommended.

Flat steering wheels with 0mm dish, T-shaped upper spoke surfaces may interfere with the switches. Compatibility should be checked before purchase.

Personal Neo Grinta and MOMO Mod. 78 (Veloce) are incompatible steering wheel models.

Some functions may not be available when using aftermarket audio or navigation systems, as the product reproduces the original steering wheel's electronic circuitry. Please check compatibility with the relevant system manufacturer before purchase.

Professional installation is recommended to ensure correct fitment, wiring and clearance.

Fitment:

• Toyota GR Yaris MXPA12, GXPA16 (2020/02 and onwards) With Airbag

Developed in technical partnership with Cocoa Systems, the NIGHT-PAGER ST BUTTERFLY is proudly made in Japan.

• Steering wheel switch box
• Vehicle-specific wiring harness and panel labels

NIGHT-PAGER is a Tokyo-based manufacturing company founded in 1991 and led by representative director Shinichiro Yokota. Based in Ota Ward, Tokyo, the company specializes in the planning, design, engineering, prototyping and production of automotive and motorcycle products, accessories, and industrial components.

At the heart of NIGHT-PAGER is the philosophy of “Tokyo Shitamachi Manufacturing” – creating products where the people behind the manufacturing can be seen and trusted. The company places strong emphasis on Made in Japan quality, using domestically sourced materials and leveraging a network of approximately 3,000 small manufacturing companies in the Ota Ward area to produce both standard and custom-made products.

NIGHT-PAGER develops products through a continuous cycle of making, testing, driving, and improving. Products are tested on circuits and developed in cooperation with automotive shops, with improvements made based on real-world use and performance. The company’s capabilities cover the entire development process, from concept and design through 3D-printed models, prototypes, plastic molding, machining and mass production.

By combining the craftsmanship of Tokyo’s traditional small factories with practical testing and continuous product development, NIGHT-PAGER aims to deliver safe, reliable, high-quality Japanese-made products for automotive and motorcycle enthusiasts.

Click here to download the installation instructions.