Chrysler's 200 sedan is one of the maker's many models covered by five separate new recalls.

Chrysler Group LLC is recalling nearly 840,000 vehicles due to a series of safety-related issued, putting new stress on the Detroit maker’s efforts to rebuild its reputation for quality, reliability and durability.

The problems cover a wide range of issues, including faulty head restraints, airbag software glitches and electronic stability control systems. The quintet of recalls comes just weeks after the maker reluctantly agreed to call back 1.2 million Jeeps due to potential fire hazards.

Though the Jeep recall was significantly smaller than federal safety regulators originally sought it nonetheless means that Chrysler has so far had more individual vehicles sold in the U.S. covered by recall orders than any other maker.

Jeep Grand Cherokees sold prior to the 2002 model-year will be subject to the recall announced last month. But later models, like this '05, were removed from the list.

Under the largest of the individual recalls Chrysler has just announced, the maker will fix approximately 490,000 cars and utility vehicles to address a problem with an active head-restraint system designed to mitigate neck injuries by automatically moving forward during certain rear-impact collisions. Potentially faulty microcontrollers in some vehicles may prevent the systems from functioning properly.

Chrysler was not aware of any related injuries or accidents. Airbags and shoulder-restraint systems are not affected, the company said.  The maker noted that the faulty computer chips were sourced from parts makers after the 2011 earthquake and tsunami in Japan caused a worldwide microcontroller shortage.

The head restraint recall covers 2011-2013 Chrysler Sebring, 200 sedan and Dodge Avenger midsize cars; 2011-2013 Jeep Liberty and 2011-2012 Dodge Nitro SUVs.  All told, it impacts approximately 442,000 vehicles sold in the U.S.; 25,000 in Canada; 10,000 in Mexico; and 12,000 outside the NAFTA region.

(Jeep recall significantly smaller than NHTSA originally wanted. Click Here for the story.)

The second largest safety campaign covers 282,000 minivans to fix software which is “inadvertently programmed” to deploy side airbags on the opposite side to that of an impact.

Chrysler said there had been three reported incidents and one “minor” injury due to the airbag issue.

Other recalls include 69,000 trucks to update their electronic stability control software, and 1,060 commercial trucks – half of which are with the dealers – to inspect and if necessary replace a track-bar fastener.

Chrysler will recall approximately 69,000 4×4 pickup trucks worldwide to update their electronic stability control (ESC) software. The maker received a small number of reports from dealers who noted ESC warning-lamp activation on 2013 Ram 1500 trucks equipped with four-wheel drive, which could mean that the safety system has inadvertently been disabled.

(Chevy Volt recall may be smallest on record. Click Here to find out why.)

A fifth recall announced by Chrysler covers 226 minivans made in 2013 – most of which it said are in dealer hands – to replace their airbag-control modules.

Chrysler said “the modules were inadvertently programmed with software that may compromise airbag deployment” but added that it was not aware of any injuries or incident due to the issue.

Last month, Chrysler agreed to recall 1.2 million Jeeps that could be at risk of fuel tank fires, after initially refusing a government request to do so. That was, however, the result of a compromise with the National Highway Traffic Safety Administration, which originally wanted Chrysler to recall 2.7 million Jeeps.

Even so, the maker will now have recalled more than 2 million vehicles in just the past two weeks.  That appears to exceed the total number of vehicles that Honda and Toyota have each so far targeted with their own safety campaigns.  The two Japanese makers had each recalled more individual vehicles than any other brands during the last five years.

(Feds investigate possible safety problems with 340,000 Honda minivans. Click Here for more.)