I was backing up at low speed (less than 1 mph) to park by gently letting my foot off the brake to back. I was using the rear backup camera to gauge how far I could go back without striking the vehicle behind me. The screen showed video that I was still several feet away from the vehicle behind me when I felt a sudden bump. I stepped on the brake hard to ensure I was no longer moving but the camera still showed several feet between my rear bumper and the vehicle behind me. I put the vehicle in park and got out to verify that I had struck the vehicle behind me. I had. I returned to the driverâs seat, put the vehicle back in reverse to see what the camera showed and now it appeared on the screen that my bumper was touching the vehicle behind me. The video on the screen had absolutely froze while I was backing, which contributed to me making an error in judgement while backing, causing me to strike the vehicle behind me. The DuPage County Sheriffâs Office (Illinois) completed a crash report. SOPC23-08519