Apply a new coat of underbody sealant after applying the primer coat but before applying the paint. Apply seam sealant before applying bottom sealant. Ensure that all plugs and rubber stoppers in the floor panel (except for plugs covering holes for sealing treatment) were installed in place prior to applying the underbody sealant. Using a heat gun, restore all heat-set plugs, or replace them with rubber stoppers.
CAUTION: Before applying new sealant to the underside of the vehicle, cover all suspension components, wheels, tires, powertrain, drive shafts, driveshafts, exhaust system, and brakes (including all attachment points).
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