This obviously being related to DX I'm attaching a dxdiag report.
It happens randomly at various places during the game, but I had it happen several times after disabling the last generator and jumping to safety in "Grand Finale Part Two"
Faulting application name: SaintsRowIV.exe, version: 1.0.0.1, time stamp: 0x5214db3e
Faulting module name: d3d11.dll, version: 6.2.9200.16570, time stamp: 0x5153774d
Exception code: 0xc0000005
Fault offset: 0x0008ee4e
Faulting process id: 0xba4
Faulting application start time: 0x01cea1ba45b4b966
Faulting application path: D:\Steam\steamapps\common\Saints Row IV\SaintsRowIV.exe
Faulting module path: C:\Windows\system32\d3d11.dll
It happens randomly at various places during the game, but I had it happen several times after disabling the last generator and jumping to safety in "Grand Finale Part Two"