NHTSA (USA)Critical
Defect
Piaggio Group Americas. Inc. (Piaggio) is recalling certain 2019 Vespa GTV 300, GTS 300, and 2020 Vespa GTS 300 HPE scooters. The brake lines may have been improperly galvanized, allowing hydrogen to be released into the brake fluid.
Safety Risk
Hydrogen in the braking system can reduce the brake lever's ability to activate the brakes, increasing the risk of a crash.
Remedy
Piaggio will notify owners, and dealers will install front and rear master cylinder brake flush fittings, and perform a complete brake system flush, free of charge. The recall began November 27, 2019. Owners may contact Piaggio customer service at 1-212-380-4433. Piaggio's number for this recall is PP2ZZQ1904_GTS.
1,328 vehicles affectedMfr ref: PP2ZZQ1904_GTSUpdated June 10, 2026