Fiat Chrysler recalls trucks with air bag, steering wheel issues

DETROIT — Fiat Chrysler is recalling more than 1.7 million trucks to fix problems with air bags and welds in the steering system.

The biggest of three recalls announced today covers 1.35 million Ram 1500, 2500 and 3500 pickup trucks and 3500, 4500 and 5500 Chassis Cabs, mainly in North America.

All the recalls are from the 2012 through 2014 model years.

Fiat Chrysler says a company investigation found that some trucks may have steering wheel electrical wires that can wear due to contact with a spring. That can cause a short circuit that could make the driver’s side air bags inflate without a crash.

The company says it knows of two injuries caused by the problem but no crashes.