2020gmc

I have not tried covering the mesh but did mess with that flap. I just got a flat screw driver and jumped the spring to be in the open position sounds very nice when you start up like you mention. I think that had to do with it starting on all 8 cylinder then the cylinder deactivation kicks in. I want more sound ?.

My 2013 f150 used to have a mode that would prevent me from draining battery these dont. When Reading the manual i noticed it says not to leave the power outlets connected and i used to leave two chargers connected for the cell phones on the front and back they had small lights. Im sure they dont cause that much drain but now i disconnect them for fear of battery drain. Also trying to get my wife to disable autostop start when she turns it on because a battery takes the most load when cranking. Thats why it uses cca to rate them cold cranking amps

Lol! Thanks. Must admit this is my first gm product and it takes the prize for spending some time in service so soon. Got my truck back! They put a new battery and cleared codes. Plus they took care of the seat belt recall ?

Currently have my 2020 Gmc sierra 1500 with a build date of 09/2019 at the dealer with 2kmiles on it. Battery was dead one morning. After jump starting had check engine light and brake antilock system issue sent to my email. Truck would not hold a charge after leaving it on for a good 30 min. Its been at the dealer for 3days now.

Currently have my 2020 Gmc sierra 1500 with a build date of 09/2019 at the dealer with 2kmiles on it. Battery was dead one morning after jump starting had check engine light and brake failure alert message sent to my email. Truck would not hold a charge. Its been at the dealer for 3days now