Tank Warden Install

Disclaimer: You are responsible for making modifications to your truck. Subtle Design will not be held responsible if you damage your truck or any of its parts. Please take your time and enjoy the process.

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Installation

Estimated Time: Less than 5 minutes.

Step 1a: Unthread the OEM fuel cap and remove the tether from the fuel door hinge arm.

Step 1b: Unthread the OEM DEF cap and remove the tether from around the filler neck.

Step 1 Gallery

Step 2: ’11-16 Trucks Only: Install the provided cap holder (found in bag with yellow sticker) onto your fuel door by sliding it down over the center of the raised edge/lip, as shown in the photo. It is a friction fit and no tools are necessary.

Step 2 Gallery (’11-16 Trucks Only)

Step 2: ’17-22 Trucks Only: Install the provided cap holder (found in bag with yellow sticker) onto your fuel door by placing it on top of the left-most portion of the hinge arm, sliding it over until it stops. The shape on the top is designed to help you align it easily, as shown in the photo. While pushing against the top of the cap holder, use the included driver bit to fasten the cap holder to the hinge arm via the self-drill screw. Go slowly to prevent overtightening and stripping out the plastic. Do not use an impact driver!

Step 2 Gallery (’17-22 Trucks Only)

Step 3: Cut and discard the zip ties on the Tank Warden fuel and DEF caps.

Final Step/Using Tank Warden: Coming soon!

This is a living document and may be improved over time. Last Updated: May 25th, 2022 –2:21 PM CDT