Brake Controller and Wiring Harness Recommendation for 2021 Chevy Silverado 2500

Updated 07/26/2022 | Published 07/23/2022

Question:

I just bought a 2021 Silverado 2500. It does not have the factory TBC above the headlight and 4wd control. It has the trailer plug port in the bumper and the black box is behind the parking brake. Maybe all Silverados in this generation have those two items, but Im new to the truck world. Im just looking for confirmation that all I need is the aftermarket TBC and the harness that plugs into a port in that black box. Making sure I dont need to run a hookup to the back or rewire the plug. Thanks in advance!

asked by: Mark W

Expert Reply:

Thank you for all of your information!

Yes, all you need for your 2021 Chevy Silverado 2500 is the brake controller unit itself and corresponding wiring harness that plugs in under your dash. If you don't already have one in mind I recommend checking out the Tekonsha Primus IQ # TK90160 and Wiring Harness # 3064-P because it's a great entry-level brake controller that is easy to use and understand. This also uses the proportional braking which is perfect for highway use. Since you're new to the truck and towing world this is a solid and reliable way to get your feet wet.

Attached is an installation video of this controller on a 2016 Silverado 2500. The adapter is a different part number since it's a different generation truck but it installs in the same manner as your pickup so it's still relevant.

expert reply by: Jon G