Finish an added horn-control position with the CH4X4 Air Horn Symbol. This momentary push switch for Toyota air horn applications uses a laser-etched Large Push face, bringing a clearly labeled, OEM-style button to the compatible dashboard locations listed below.
Air Horn Symbol operation and installation planning
Press and hold the button to turn the switch circuit ON; release it for OFF. The SPST momentary action does not remain engaged after your finger leaves the button. Confirm how the horn system should be triggered and use the switch only in the appropriate fused relay control circuit.
Package contents
- 1 CH4X4 Large Push momentary switch — Air Horn Symbol.
- 1 connector with cable.
- Wiring diagram supplied with the switch.
Relay and controlled equipment sold separately.
Momentary push switch for Toyota air horn: Large Push specifications
- Face dimensions: 39 × 21 mm (approximately 1.54 × 0.83 inches). Verify the mounting opening separately.
- Single Pole Single Throw (SPST), momentary ON/OFF operation: press and hold for ON; release for OFF.
- Electronic switch rated at 3A at 12V, with short circuit protection.
- Heavy-duty ABS body with a matte black hard surface.
- Air Horn Symbol legend laser etched directly into the face.
- Two LEDs per switch: one upper indicator and one lower panel light.
- Upper LED turns ON when the switch is pressed IN.
- Lower LED can be wired to a separate dash-light circuit.
Wiring and installation — fused relay required
A fused relay is required in ALL installations. Do not power the accessory directly through this 3A, 12V switch. Route accessory power through a suitably rated relay circuit with appropriate fuse protection.
Follow the supplied wiring diagram and the accessory manufacturer’s instructions. The connector and cable provide the switch-side connection. The CH4X4 marine-grade waterproof 12V 40A relay with 4-pin harness is available separately. Have your installer confirm relay, wiring and fuse selection for the accessory load.
Planning your Air Horn Symbol installation
The Air Horn Symbol identifies the button’s intended control position. The package does not include an air horn, compressor, valve or relay. Those components must be selected and wired for the particular horn system. Check its instructions along with the supplied switch diagram before completing the installation.
Compatible with Toyota mounting applications
Check the vehicle year, trim, market and actual dash opening. Observe the mounting-position restrictions below. This CH4X4 aftermarket switch is designed for the listed Toyota applications.
- Toyota Tacoma 2005–2011
- Toyota Tacoma 2012–2015 (left side ONLY)
- Toyota Tacoma 2016–2020 (left side ONLY)
- Toyota FJ Cruiser 2007–2014
- Toyota Fortuner 2005–2014
- Toyota Hilux 2005–2014
- Toyota Highlander 2001–2007
- Toyota Tundra 2005–2006 (center console, if equipped)
- Toyota 4Runner 2003–2009
- Toyota Prado 120 Series 2003–2009
- Toyota Land Cruiser 100 Series 1998–2007
- Toyota Land Cruiser 75, 76, 78 and 79 Series




