Welcome to 2CarPros. The 12 volt battery is remote mounted on your truck, it is mounted to the frame rail under the drivers side.
Jump starting it is done using the remote positive battery terminal located near the oil dipstick and the negative terminal located on the drivers side inner fender.
However either battery can go low and cause a no start. To tell which it is the dash lights should help. If it's the 12 volt battery that is at fault the battery light on the dash will come on. If it is the high voltage pack that is the problem the radio/nav unit will show "insufficient charge" If it's the 12 volt battery you can use the remote terminals to start it. If it is the high voltage pack you will need a scan tool to enable the charging system to charge the HV pack.
Thursday, June 20th, 2019 AT 12:25 PM