Car and Driver: 2016 GMC Sierra 1500 Denali 6.2l V8 4X4 Review
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Mine worked fine until I got an update also. After that sometimes it would not connect and Id have to turn CarPlay off and then back on for it to try to connect again. I think I have had two additional updates since this started and it has gotten better but still not perfect. -
By nitrozamboni · Posted
It’s probably water in the doors. Mine had tape over the drain holes! Poked them open and that took care of it. Now I’m waiting for the rust to come through!🤬 -
Hi all, I just bought a 2021 suburban RST with 88,000 miles on it and everything has been good but I’ve been noticing within the last month or so that there are small electrical things going on and I know what the AGM batteries and all the electric electrical in these big trucks you need to have a constant flow with good voltage That being said, I bought a new battery thinking that that might have something to do with it but today I went to get in and start it and it said no key found when I had the key right in my pocket It also proceeded to flash the lights inside and outside for over 30 minutes as I went to disconnect the battery as soon as I touch the negative terminal, I heard the relay reset and everything come back up. I got in the truck and started it no problem. Anyone else have this happen to them? I’m starting to think it’s the KARR system that the dealer installed short circuit stuff. -
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By ManyCamaroz · Posted
I don't drive this truck on a regular basis since I have a new company truck with no out of pocket fuel or maintenance cost. Yesterday I got it out to run some errands and got the title message on my DCI. A quick Google search suggested to first clean the Map Sensor. I pulled it out and it was sooty so cleaned it up and reinstalled it. Issue not resolved. My OBDII is a couple years old so didn't see any codes. Today I took it to a friend at AutoZone to get him to check it with his reader. It had the following codes: P20C3 P02BB P221F Stating the most likely solution is to replace diesel emission fluid (DEF) tank assembly. So, I guess a trip to the dealer is necessary. I read where there was a backorder on these tank assemblies several years ago so hope that has been resolved.
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