Most likely it does not need to be lubed. Many newer GM products are permanently lubed at the factory and sealed. There are no grease fittings to lube.
I own a 2000 Chevrolet Malibu. This car is permanently lubed and sealed from the factory. There are no grease fittings on this car to lube.
If the owners manual says to lube it, then you should be able to find something that needs grease. Check the steering arms and the control arm bushings. The manual might say where it needs to be lubricated.
