Add a deeper, louder auxiliary horn to a Gen 1 Rivian R1T or R1S with this installed ZEVcentric upgrade. The system leaves the factory single- or dual-horn setup operational and adds an air-horn-style tone using vehicle-specific mounting and wiring.
Gen 1 R1T and R1S only. Fitment has not been confirmed for 2025 vehicles.
Verify the factory horn location
Look through the front bumper grille and compare the horn location with the product-gallery photos before ordering.
- Factory dual horns or a single driver-side horn: select the Driver Side option
- Single passenger-side horn: select the Passenger Side option, which requires the additional harness extension
- If both driver- and passenger-side grille areas have solid plastic covers, select the passenger-side configuration
Select parts and labor
- Parts + Labor: includes the compatible horn-upgrade kit and installation
- Labor Only: installation service for a compatible customer-supplied kit
Complete-kit contents
- Auxiliary horn
- Rivian-specific mounting bracket
- Relay and wiring harness
- Y-connector
- Required mounting hardware
- Passenger-side harness extension when that configuration is selected
The assembly mounts in a recessed area beneath the front trunk.