HomeAll RepliesReply To: 2023 Suburban-Dead battery Reply To: 2023 Suburban-Dead battery Sponsored January 23, 2024 at 8:29 am #797564 Ksm9446Participant No. I haven’t added anything extra. I only have 5000 miles on it. Did fine at first but the last 6 weeks, it’s hit or miss if it will crank. May crank OK for 2 days then dead when you try to crank it. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored