How to change Transmission Fluid Buick Encore 2013-2022 Fill and Drain Plugs Location

Component Location

A quick and direct guide showing you the exact location of the transmission fluid drain plug, fill cap, and level-check plug on a 2013-2022 Buick Encore equipped with the 6T40 (6-speed automatic) transmission.

• Drain Plug: Located on the very bottom of the transmission case, pointing straight down near the driver-side subframe frame rail. It requires an 11mm socket to remove.
• Fill Cap (Vent Cap): Located on top of the transmission housing under the hood. You will find a black plastic screw-on cap tucked down below the shifting linkage and brake master cylinder area.
• Level-Check Plug: Located on the driver-side side cover of the transmission case, just behind the front wheel/axle area facing the wheel well.

DIY Friendly Repair Guide

If you are planning to service your transmission fluid yourself, locating these entry and exit points is half the battle. This system is a “drain and fill” setup without a traditional dipstick, so knowing exactly how to locate the level-check plug ensures you get the fluid level perfect without overfilling or underfilling the unit. This guide is designed to save you time and frustration before you even lift the car, making your DIY auto repair much smoother.

Common Bad Symptoms

When your transmission fluid degrades, burns, or runs low, you might experience several warning signs. Common symptoms of old or low transmission fluid include hesitant or delayed gear engagement, a distinct slipping feeling under acceleration, harsh or “hard” shifting between gears, or a noticeable whine or shudder coming from the powertrain. If left unserviced, deteriorated fluid can trigger transmission performance trouble codes, illuminate the check engine light, and lead to premature clutch or torque converter failure.

Safety First!

Before you start working on your vehicle, always prioritize safety. Because you will need to get underneath the car to pull the drain plug and check fluid levels, you must securely support the vehicle on heavy-duty jack stands on a level surface—never rely on a floor jack alone. Always wear proper eye protection and mechanics’ gloves to protect against hot fluid, and ensure your working environment is safe before performing any vehicle maintenance.

Ask an Expert Mechanic

As an experienced professional automotive technician, I’m here to help you get your car back on the road. If you are dealing with a tricky level-checking procedure, need the exact torque specs for the drain and check plugs, or want to know the precise fluid type and capacity needed for this 6-speed unit, drop your questions in the comments below, and I will gladly assist you with your breakdown!