DETROIT — General Motors announced two more recalls Friday, pushing its total for the year to 71, affecting almost 30 million vehicles in North America.

The biggest of the new recalls covers just over 430,000 Cadillac SRX and Saab 9-4X SUVs, mainly in North America. The company says some rear suspension nuts may not have been tightened properly. That could cause the toe link adjuster to separate from the suspension, possibly causing a crash.

Another covers the Chevrolet Spark mini car because the hoods can unexpectedly fly open.

GM also confirmed Friday that it has told dealers to stop selling Chevrolet Colorado and GMC Canyon midsize pickup trucks that went on sale about two weeks ago until an air bag problem is repaired.

The SUV recall covers SRXs from the 2011 through 2015 model years and Saabs from the 2011 and 2012 model years. GM says the problem has caused three crashes and two injuries.

Dealers will inspect the SUVs and install a new assembly if needed. Unsold SRXs are being checked to make sure the nuts are tightened properly.

The other recall covers nearly 94,000 Chevrolet Spark mini-cars from 2013 through 2015 in the U.S. and Canada. Rust can cause a secondary hood latch to stick, and the hood can open unexpectedly, blocking the driver’s vision and causing a crash. GM says it knows of no crashes or injuries from the problem.

Dealers will replace the latch when parts are available. GM has told dealers not to sell about 13,000 cars on their lots until the repairs are made.

On the pickup trucks, spokesman Alan Adler said dealers nationwide were told Thursday to stop selling them because the air bags weren’t wired properly at the factory in Wentzville, Missouri. A recall is pending. The company is still working on a remedy, which may be a software update, he said.