Most use a dipstick located in the engine bay.
Many modern vehicles (especially those with CVTs) are "sealed" and require professional diagnostic tools to measure fluid temperature and levels through specific check plugs. 2. Internal Precision Measurements How to Check Your Automatic Transmission Fluid tranny measuring
The vehicle must be lifted and level. Technicians remove a fill plug on the side of the transmission; the fluid level should be flush with the bottom of this hole. Most use a dipstick located in the engine bay
The fluid should fall between the "Warm" or "Hot" hash marks. Manual Transmissions: These typically lack a dipstick. tranny measuring
