Replace it! Or you can try to reset the tension spring on it but not sure it's a good idea on the safety equipment. Trying to lube it can only make a mess and stain your seats or clothes.
05 Matrix XR 4WD and 03 Vibe GT
"If you want Government to solve your problems, then you are the problem!" BMSR
Trix MODS: SRI w/ AEM filter, Vibrant/Magnaflow Cat-back, Alutec Lightweight Crank Pulley
GT MODS: Cosmo SRI, DRL, Auto Stop