Hi Jess, Thanks for you enquiry. It would be better to speak to get a good understanding of the context, either we call you or you call our office 1800 223 263. There are a number of things that may cause issues with you car's transmission. It can range from fluid levels or quality, servicing or be some form of fault with a component in the transmission or related system. You could check the transmission fluid level and viscosity as a first step.