Two problems related to battery dead have been reported for the 2008 Chevrolet Suburban. The most recently reported issues are listed below.
Driving when you reach about 30-35 mph all the locks start cycling up and down, all the gauges go haywire, there is a throttle in the engine. When you turn it off sometimes it starts back up and runs fine and sometimes it won't do anything like the battery is dead and then a few minutes later it comes back on and starts back up. The last incident was 01/09/20 but this started in 12/2019. The vehicle has a brand new engine which only has about 1,000 miles on it. Also there is a crack in the dash at the corner of the passenger side air bag.
Battery goes dead every third day that the truck is not used. Battery is good.