Express 3500 V8-6.0L (2010)
Horn Switch: Service and Repair
Steering Wheel Horn Switch Replacement
Removal Procedure
Warning: Refer to SIR Warning (See: Restraint Systems/Service Precautions/SIR Warning).
1. Disable the SIR system. Refer to SIR Disabling and Enabling (See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Air
Bag(s) Arming and Disarming/Service and Repair).
2. Remove the inflator module. Refer to Steering Wheel Inflatable Restraint Module Replacement (See: Restraint Systems/Air Bag Systems/Air
Bag/Service and Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement).
3. Remove the horn plunger from the steering column by pressing inward to the stop and rotating horn plunger 90 degrees.
4. Remove the horn contact plate retaining screws from the steering wheel.
5. Remove the horn plunger from the steering wheel.
Installation Procedure
1. Install the horn plunger to the steering wheel.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install the horn contact plate retaining screws to the steering wheel and tighten to 5.5 Nm (49 lb in).