Honda Accord How to Replace Manual Transmission Fluid Step 1 – Jack Up Your Car to Access PlugsStep 2 – Remove The Fill Plug and Drain PlugStep 3 – Allow The Fluid to DrainStep 4 – Replace The Drain Plug and Fill The TransmissionStep 5 – Test DrivePull the parking brake and remove the keys. Jack the vehicle up, so you have enough room to slide and work underneath it. Level the vehicle in order to properly drain out all of the fluid, and place jack stands under the car to secure it. Place cardboard under the vehicle to catch potential spills.(Related Article: How to Jack Up Your Car - Honda-Tech)See more on honda-tech Manual Transaxle Repair Guide - AutoZone The fill plug is in the mid section of the transaxle. The drain plug is near the bottom of the transaxle. The oil level is checked by removing the oil fill plug on the side of the transaxle. The transmission fluid should just meet the lower threads of the fill hole.