The latest action brings to 13.6 million the number of vehicles GM has recalled this year, a new record for the automaker.
The recalls announced Tuesday include 1.3 million older-model crossovers with defective front seat belts and 1 million sedans with a shift cable that can wear out.
GM is also recalling 1,400 new Cadillac Escalade SUVs with faulty air bags.
No fatalities related to the defects have been reported, GM says
It expects to take a $400 million charge in the second quarter to repair the vehicles.
GM agreed to a $35 million federal fine last week for delays in reporting a deadly ignition switch defect.