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2018 GMC 2500 front valence removal

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On 3/8/2019 at 1:54 PM, Bryan Anderson said:

It is doable. But it’s not simple and there are a couple brackets that I left on mine cause they won’t come off without removing the bumper to pull them. And I didn’t want to do that lol. 



How did you remove the parking sensors filler plate to get to those bolts. I smashed my air deflector and bracket & need to replace them. Already have the parts, just need to know how to get to those bolts. Mine's a 2017 Chevy 3500HD LTZ

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2018 Sierra Operators Manual:


Before Driving Off-Road
. Have all necessary maintenance and service work completed.
. Fuel the vehicle, fill fluid levels, and check inflation pressure in all tires, including the spare, if equipped.
. Read all the information about four-wheel-drive vehicles in this manual.
. Remove any underbody air deflector, if equipped. Re-attach the air deflector after off-road driving.
. Know the local laws that apply to off-road driving.


To gain more ground clearance if needed, it may be necessary to remove the front fascia lower air dam, if equipped.

However, driving without the air dam reduces fuel economy.


Operating the vehicle for extended periods without the front fascia lower air dam installed can cause improper airflow to the engine.

Reattach the front fascia air dam after off-road driving.

Edited by redwngr
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