One problem related to starter has been reported for the 2019 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 GMC Sierra 2500 based on all problems reported for the 2019 Sierra 2500.
Trailer brake system needs service, warning light came on and beeping loud starter last month 6-2023 , and maybe the brake control module is bad ? code c1117 came up.