Recalls 1 and 3 describe the same door latch defect. Recalls 2 and 4 describe the same airbag/pretensioner defect. So there are effectively 2 distinct issues across 4 filings.
The 2010 Dodge Caliber has 4 recalls, the most serious being two significant safety issues: a door that can unlatch on its own when the window is rolled down, and a restraint system that can fail to deploy airbags or tighten seatbelts in a crash.
The right front door may have been built with an incorrect lock rod that releases the latch when the window is lowered while driving, leaving the door free to swing open and raising the risk of a passenger being ejected. Separately, a short circuit in the occupant restraint controller can disable the front and side airbags along with the seatbelt pretensioners, meaning none of those systems may respond in a collision that would normally trigger them.