Service bulletin A_210573_TC_EN

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10195394
Published by NHTSA	2021-06-08
Manufacturer's number	A_210573_TC_EN
Manufacturer's date	2021-05-23
NHTSA component	EQUIPMENT; ENGINE; ELECTRICAL SYSTEM

NHTSA's summary

[A_210573_TC_EN] Aprilia RS - Tuono 660: Availability of engine ECU calibration update Dear Dealer / Service Center, Please note that a software update for the engine control unit map is now available once the PADS diagnostic tool is updated to the latest release available. The aforementioned operation is considered part of the normal maintenance required for the vehicle, and must be performed during the pre-delivery procedure, for new vehicles, or, for vehicles that have already been sold and are in use, at the same time as other scheduled maintenance operations or at the first available opportunity when the vehicle is brought to the service center . The new update introduces the following main features and improvements: Resolved issue causing spurious diagnosis of error P1401 at key-on; Software bug fix;

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Equipment and accessories

Trouble codes named

P1401

Vehicles listed
APRILIA RS 660	2021
APRILIA TUONO 660	2021 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
2021414	2021-07-02. Engine
21V502000	2021-07-01. ENGINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
A_240704_TC_EN	2024-09-06. Service bulletin. Through the ongoing, stringent quality control activities we perform on the components installed on our vehicles and our continuous research to develop better new technical solutions, in keeping with our commitment to ensure the best ownership experience possible for the customer, with this note we wish to inform you of the need to check the tightening of the oil pump gear screw. Please determine which vehicles in your stock or sold/serviced by you require this update, and: • update all vehicles in stock before sale • update vehicles that have already been sold at the first available opportunity.
A_210997_TC_EN	2021-10-07. Service bulletin. We inform you that a software update, relating to the calibration of the instrument panel. of the models in question, is available by downloading it from the P.A.D.S. diagnostic tool (update the instrument to the latest version available). The above operation is to be understood as included in the periodic maintenance activity to be carried out at the same time as the other activities planned at the services, during predelivery or at the first possible arrival in the Workshop for those in circulation. The main contents of the available update are: • Update of the calculation algorithms.
A_210742_TC_EN	2021-08-07. Service bulletin. Dear Dealer / Service Center, this to announce that, due to the supply of a limited batch of connecting rods subjected to a heat treatment that does not comply with the standards, a limited number of VINs have been blocked on PWM for the Aprilia RS 660 and Tuono 660 vehicles, in order to prevent delivery to Customers. For Customers who own vehicles belonging to the same range, the notification of the recall campaign has already started. In order to pursue the highest level of Customer satisfaction and to carry out a professional and impeccable activity, the intervention will consist in the replacement of the engine with a new engine, which will provide the renewal of the warranty activation on the whole vehicle from the date of intervention itself. A detailed technical note will be published on the Service Portal in the next days. We apologize for the inconvenience; we welcome this opportunity to offer you our Best regards, Piaggio & C. SpA Business Unit Aftersales
A_210664_TC_EN	2021-07-08. Service bulletin. We hereby inform you that, after updating the P.A.D.S. diagnostic tool to the latest release available, a software update is available relating to the calibration of the instrument panel of the aforementioned model(s). The operation referred to above is to be included in the normal maintenance activities to be carried out at the same time as the pre-delivery, during the activities scheduled for services, or on the first convenient passage in the Workshop for vehicles in circulation.
A_210574_TC_EN	2021-06-08. Service bulletin. [A_210574_TC_EN] Aprilia RS - Tuono 660: Availability of engine ECU calibration update Dear Dealer / Service Center, Please note that a software update for the engine control unit map is now available once the PADS diagnostic tool is updated to the latest release available. The aforementioned operation is considered part of the normal maintenance required for the vehicle, and must be performed during the pre-delivery procedure, for new vehicles, or, for vehicles that have already been sold and are in use, at the same time as other scheduled maintenance operations or at the first available opportunity when the vehicle is brought to the service center .
PA2ZZQ2103_AP2_P	2021-06-08. Service bulletin. Aprilia RS & Tuono 660: New ABS ECU calibration (2) - Technical update - Campaign Code: PA2ZZQ2103_AP2_PGA Dear Dealer / Service Center, As part of the continuous and strict quality sampling plans of the components installed on our vehicles, the continuous search for new and better technical solutions and the attention to customers, we hereby inform you of the need to carry out the intervention relating to the software update of the ABS system ECU calibration that improves the reliability of the data exchange between the brake system of the motorcycle and the Inertial Measurement Unit (IMU *), improving the filtering of the signal and thus avoiding the generation of false diagnoses, especially at an engine speed of 6000 rpm.
A_210393_RC_EN	2021-05-08. Service bulletin. Aprilia RS 660 and Tuono 660: Exhaust valve clearance - Technical update - Campaign Code: PA0ZZQ2101_Stock-PA0ZZQ2101_Sold Dear Dealer / Service Center, through the ongoing, stringent quality control activities we perform on the components installed on our vehicles and our continuous research to develop better new technical solutions, in keeping with our commitment to ensure the best ownership experience possible for the customer, it has come to our attention that it is necessary to check and, if necessary, correct the exhaust valve clearance on the aforementioned vehicles to prevent the possibility of valve noise during engine operation. During this procedure, the special screw with seal of the timing chain tensioner and the oil plug with seal must be replaced with new parts. Please determine which vehicles in your stock or sold by you require this update, and: Update all vehicles in stock before sale .