issue on start up

[2018_ram]

i have a 2017 ram 3500 ctd and when i start it up i get all the brake and abs warnings on and message to service 4wd after a few seconds they go away. I'm thinking its the batteries not having enough voltage on start up. it has about 30,000 miles on it I'm assuming with original batteries in it. and i know im not leaving anything on over night. is there something else to check? im going to get a battery load tester to check the batteries.

 

[Rlaf75]

I cant speak for the dash lights coming on but getting almost 5 years out of the battery is pretty good. I'd definitely start thinking about replacing it regardless

 

[Fuel35 67]

They all come on for a few seconds, then go out if everything is fine. But it still might be time for new batteries.