General Motors Corp. (GM) is recalling more than 193,000 vehicles on the U.S. market to fix a variety of safety defects, federal safety regulators said Thursday.

The National Highway Traffic Safety Administration (search) said the recalls included one covering 155,465 pickup trucks, sport utility vehicles and vans that may suffer hydraulic fluid leaks, causing increased steering and braking effort and potential crashes.

Models affected, all from the 2004-2005 model years, include the Avalanche, Express, Kodiak, Silverado and Suburban from GM's Chevrolet division. GMC's Savana, Sierra, Topkick, Yukon XL and the Hummer H2 were also affected, NHTSA said.

Separately, the agency said 19,924 Cadillac SRX and Cadillac XLRs, along with Pontiac Grand Prix models from the 2004 model year, were being recalled because of potential problems with their accelerator pedals.

Lastly, NHTSA said GM was recalling 17,815 Buick Rainier, Chevrolet TrailBlazer, GMC Envoy and Isuzu Ascender SUVs from the 2005 model year because their windshields may not have been mounted properly.

"If a crash occurs, the windshield may not be retained, increasing the risk of injury to a vehicle occupant," NHTSA said.

GM, the world's largest automaker, recalled more than 10 million vehicles in 2004, in a year that saw a record number of recalls across the industry.