If you have a GRX4 that you suspect might be in need of service or repair, please contact us via the Help Section and include a brief description of your concern(s) and the serial number. If we determine that you have to send it back, we will instruct you to use this shopping cart item to do so.
Please ensure you follow the Warranty Return Instructions provided below, otherwise you WILL be charged for any and all (Customs, Brokerage and/or other) fee's that we incur when receiving your product/shipment.
As per our Warranty (Terms & Conditions), there is no (significant) charge for WRO work, but you must pay for S/H to and from our location.
FYI, our system has to charge $0.01 in order to register an order that requires shipping...

Warranty Return Instructions