That's the cruise control actuator, Vibes with cable throttle had this. Later on when they transitioned to drive by wire, the actuator was no longer necessary.
03 Vibe base. Born 10/14/2002 06:07 AM
Neptune. Auto, Moon & Tunes, power package. 135k mi.
'13 Sonic LT - 1.4L ECOTEC turbo/6A. 116k mi.
'15 Escape SE - 1.6L EcoBoost, FWD. 58k mi. (hers)