The LS is the entry level coupe in the Cobalt lineup. The LS sedan houses a 2.2 liter inline four, which produces 145 horsepower and 155 pound-feet of torque. Buyers have a choice between a five-speed manual or an optional four-speed automatic transmission.

Standard features include a CD audio system, air conditioning, a split-folding rear seat, a height-adjustable driver seat and 15-inch wheels. Options are minimal here, but antilock brakes are an available safety feature. However, the LS models are the only Cobalts which are not available with OnStar. Despite some safety feature limitations, even this entry-level trim scored very well in crash tests.

While the coupes have been praised for solid acceleration, a refined ride and powerful brakes, there is a number of low-grade materials and virtually no interior storage space.