Esc beeps when throttle is pressed to move truck at complete stop .

[TWE75]

Hi guys , i was testing my HPI Bullet St Flux today at my void deck using 3s lipo's and i found that the esc would beep when i press the throttle at complete stop and also whenever the truck was stopped for a couple of sec then i press the throttle again , it would beep again too before moving off . Is there anything wrong ?

Anyway does anyone here own or play this truck too ? I still have alot to learn abt it . If you do then can kindly pm or reply me here ?