There is no dipstick. The dipstick/fill tube is there capped off by a plug which requires you to break off a red plastic tab to check the fluid level with a dipstick "tool." The dipstick can be purchased online. Once the plug is put back into place, in order to lock it securely in place, you need to replace the red clip with a new one (or it is possible to reuse the critical broken off piece of the clip to relock the plug).
Brett
Brett