Sierra16Denali

Purchased a Weigh Safe Aero Hitch. I noticed the design changed and inquired with the manufacturer. Apparently the new pin design will allow the ball to be removed to allow the end user the ability to service the tongue weight gauge.

How do you do this. I can lock them from coming out, but how do you lock them in the open/deployed position?

I did a bunch of searching and there really isn't too much information on the JL SB-GM-SLVCC4-12TW3 Stealthbox. It would appear that the majority of people that do install subwoofers have opted for the Kicker "factory" option. While the Kicker certainly is an upgrade to the lack of bass within our trucks, it still did not produce the amount of bass that I was use to and wanted in my truck. Granted the price tag on the stealthbox may be the main reason why it isn't a popular option and why there is little to no information on it. According to JL Audio "The Hard Data: Contains two 12TW3-D8 subwoofers in a down-firing sealed enclosure. 800 watt power handling. Wired for a 2 ohm load. Installs under rear seat. Will not affect the folding of the rear seat or rear leg room." The fiberglass subwoofer enclosure contains 2 - 12' shallow mount TW3 subwoofers. They produce an incredible amount of bass that, in my opinion, blows the kicker option out of the water. I ran power from the battery, through the passenger side grommet on the firewallIMG_0047.HEICIMG_0047.HEICIMG_0057.HEICIMG_6781.HEICIMG_6785.HEIC, connected to the Bose Amp on the rear wall behind the seats, tapped with a LLJ Harness into a LC2i and then into 500 watt amp. The LC2i provided a Bass Knob which I ran to the front dash about the wireless charger.

I added the Diode Dynamics Hitch light (reverse and brake). Made a world of difference in backing up at night.

I added the JL Audio Stralthbox. Really work the system up. Easy harness connection from the Bose amp to a LOC to run an aftermarket amp to drive the subs. Bass control is through a bass knob in the LOC

Have it fixed. Ended up being a burnt out led on the driver side and a corroded connection in the passenger side. Replaced with parts from Amazon. Works as it should now.

Hello all, I acquired a new to me 2020 GMC Sierra Denali Ultimate. l’ve tried everything to get the puddle lights under the mirrors to come on with no avail. All the other features of the mirrors work, camera, folding, unfolding, auto dim, electric adjust, led tasks lights on the back. I have gone through the infotainment menus for lighting, turned on locator lights. Nothing. The light sensor works as it automatically turns on the headlights in low light scenarios. I have parked it in a dark garage, put towels over the light sensors. Nothing. I have locked and unlocked the vehicle with the remote fobs and manually with the door handle buttons. I am out of ideas. Was there a software update or glitch for the puddle lights on these trucks? Thanks for your thoughts!