Kulick's death on May 28, 2020 was confirmed by his brother Bruce, stating “I am heartbroken to have to share the news of the passing of my brother Bob Kulick. His love of music, and his talent as a musician and producer should always be celebrated. I know he is at peace now, with my parents, playing his guitar as loud as possible. Please respect the Kulick Family’s privacy during this very sad time.”
On October 2, 2020, Bruce issued a statement via Faceboook on the cause of death, reporting that "Many of you have asked how my brother died. I didn’t have the information until a few days ago from the Las Vegas County Coroner. He passed away in his home, from natural causes due to heart disease. Sadly, I was unaware that my brother had complained to his doctor about chest pains and heart palpitations. I recently discovered this by looking at his medical papers, and I believe he was due to be treated, but the pandemic might of prevented it. For me this was a shock, as it was so sudden. I hope if you experience any pain or discomfort, please see your doctor. As much as this knowledge about his passing is closure for me and my family, he was too young to die. Thank you all for your support with his passing. I will continue to celebrate his career and share his photos and accomplishments, along with a lighter side of my brother many of you never knew."