Gmc Terrain Transmission Fluid Check: Everything You Need To Know

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If you own a GMC Terrain, you know how important it is to keep it maintained. One of the most crucial maintenance tasks is checking the transmission fluid. In this article, we will guide you through the process of checking the transmission fluid in your GMC Terrain.

Why is Checking Transmission Fluid Important?

The transmission fluid is responsible for lubricating the transmission and keeping it cool. If the fluid level is too low or too high, it can cause damage to the transmission, resulting in costly repairs. Therefore, it is crucial to check the transmission fluid regularly.

When to Check the Transmission Fluid

It is recommended to check the transmission fluid every 30,000 miles or every two years, whichever comes first. However, if you notice any signs of transmission problems such as slipping, grinding, or difficulty shifting gears, it is important to check the fluid immediately.

How to Check the Transmission Fluid

To check the transmission fluid, follow these steps:

Step 1:

Start your engine and let it run for a few minutes to warm up the transmission fluid.

Step 2:

Locate the transmission dipstick. It is usually located near the back of the engine and has a yellow handle.

Step 3:

Pull out the dipstick and wipe it clean with a cloth or paper towel.

Step 4:

Insert the dipstick back into the transmission and pull it out again.

Step 5:

Check the fluid level on the dipstick. The fluid level should be between the “full” and “low” marks.

What to Do If the Fluid Level is Low

If the fluid level is low, you need to add more transmission fluid. Make sure to use the type of fluid recommended in your owner’s manual. Add small amounts of fluid at a time and check the level frequently until it reaches the “full” mark.


Checking the transmission fluid is a simple but important maintenance task. By following these steps, you can ensure that your GMC Terrain’s transmission stays healthy and avoid costly repairs. Make sure to check the fluid regularly and add more if necessary.