railguy777

Do you happen to have the TSB number?

Mine does it as well. Only in reverse when backing out of the driveway, after that nothing

I have the 5.3 .It started ok in that weather just wish I could warm it up before. I don't like not having the option

My truck came with a block heater. It was -20 last night here in Ottawa and no more than -15 today so I thought I would plug in the block heater and see how it worked. I plugged in the heater cord that came with the truck and checked the voltage =120 v. Was curious about how much draw there is but my amp probe showed zero amps when plugged in. I checked the continuity of the cord, all good. I checked the resistance of the heater at the plug on the truck , it shows open circuit. I read on other posts about block heaters that the thermostat is in the cord itself. It appears that GM has moved the thermostat into the heater itself on the new models so that the cord cannot be tampered with. For me I would just like the heater to work when I want it to, not when GM feels its necessary, I think -15 is cold enough to warrant use of the heater. Attached are pics of the cord that came with the truck -2020 Sierra SLT

My truck came with a block heater. It was -20 last night here in Ottawa and no more than -15 today so I thought I would plug in the block heater and see how it worked. I plugged in the heater cord that came with the truck and checked the voltage =120 v. Was curious about how much draw there is but my amp probe showed zero amps when plugged in. It appears there is no load Just wondering if anyone else experienced this and if there is something I need to do under the hood to connect the heater .

I have been playing with sport mode recently and I have noticed and increase in fuel economy along as I can remember to select when I start the truck. I find especially in city driving it gets the beast up to speed quicker so I don't have to stay on the gas as long.

Just wondering why all the truck leveling? Is there a practical reason or is it just aesthetics ? If it is actually better does GM or any other truck manufacturer offer it as an option?

Thanks I didn’t know that

What are leaf screens? No idea what you are talking about

I found the same thing when I picked my truck from the dealer. The tires were about 3-4 PSI over recommended but the ride was great. I dropped the pressure to the specs but I feel the ride is not as smooth as when the pressure was higher. Going to give them a try again at a PSI and see if I still feel the same

Love the fact its not a Ford

I have the exact same truck you are looking at except mine is Pacific Blue. I have had it for about 6 weeks so far and no issues. With the premium plus package you get adaptive cruise control. This gives you everything a Denali has and more for less money. The ride is pretty smooth even with the X31 addition. I think you will be pleased with this purchase

So GM has informed my dealer that Canadian trucks do not have this feature even though the dealer found some trucks on his lot do in fact have it, and some don't. GM has determined that they need to reprogram the Body Control Module or BCM to enable this feature. My question is has anybody had their BCM reprogrammed for any reason and had any negative results. My truck is operating great right now everything else works as it should. I am just worried that the reprogramming my screw something else up just to get this one feature working.

I have what looks like the same cover installed by the dealer on my SLT. Mine is made by REV. So far we have had some pretty hard rain storms and has not leaked. I have not seen any water in the box, so I guess it depends on the installation but so far I am pleased with this cover.