2018 Sierra 1500

[Tyler Roderick]

2018 GMC Sierra 109000 Miles.  All symptoms of a dead battery. Tested battery fine.  Tested alternator, fine.  Starter read low amps?  But truck would jumpstart.  Now when trying to jump. Voltage meter in dash doesn't even hit 14 v when hooked to another running car 

 

[lonestardiver]

Check your battery cable and ground connections.

[JimCost2014]

On 5/1/2020 at 5:30 AM, Tyler Roderick said:

2018 GMC Sierra 109000 Miles.  All symptoms of a dead battery. Tested battery fine.  Tested alternator, fine.  Starter read low amps?  But truck would jumpstart.  Now when trying to jump. Voltage meter in dash doesn't even hit 14 v when hooked to another running car 

 

Welcome to the site.

 

Who tested your battery? Factory batteries have a very short life span, and you have quite a few miles for a 3 model year truck, I would replace it just to be safe, otherwise you are going to experience a lot of odd electrical things going forward.