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.
Risk and remedy
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.
The anti-lock brake module has been failing on hundreds of 2020 GTS300s. When it fails, the brake lever is locked or hard to pull, leading to the inability to brake. Vespa not only does not acknowledge this, the part is $1400 plus labor to repair.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
10201160New map for updating engine control unit Please note that a new engine control unit map for the aforementioned model is now available for downloading with the P.A.D.S. diagnostic tool (which must be updated to the most recent version available). The aforementioned operation is considered part of the normal scheduled maintenance required for the vehicle, and must be performed at the same time as other scheduled maintenance operations either during the pre-delivery procedure, for new vehicles, or at the first available opportunity when the vehicle is brought to the service center, in the case of vehicles that have already been sold and are in use. The new software introduces the following functional improvement: Resolves issue of failed communication on CAN line. After installing the new map, no further operations are necessary.
10185409New video tutorials - Brake system replacement and bleeding. We hereby inform you that a series of video tutorials are available on the Service Portal in the Video Box section, relating to the replacement of the brake system lines for the vehicles in question. The videos are intended to aid the workshop operations, reproposing operations in an intuitive and easily usable form to supplement those described in the Service Station Manual.
10178216Dear Dealer/Service Center, We hereby inform you that in order to solve any problems with irregular engine operation, or starting difficulties with engine hot on the Vespa GTS 300 hpe models, proceed according to the procedure described below. INTRODUCTION The better combustion efficiency of the hot engine, in combination with the foreseen ignition advance, entails the achievement of high pressure in the combustion chamber before the TDC The failure or difficulty starting the hot engine is actually generated by excessive pressure at the end of compression .
10168828The new dashboard software for 2020 Vespa Supertech 300 HPE introduces the following improvements: Improved display of the average fuel consumption. Check of the immobilizer indicator light on the instrument cluster during the key ON phase before starting eliminated. Pop up signalling the absence of fuel inserted. Service maintenance intervals signal modified (every 10,000 km). The displayed value of the full tank has been improved.
10167291New calibration routine due to update to engine control unit