You should determine what battery you need before proceeding, as many older Chevrolet fobs use a CR-3032, though newer ones use a CR-2450. Keep in mind that a CR-2032 is 20 mm across and 3.2 mm ...

Slightly older Chevrolet key fobs have a back panel that pops off sideways to access the battery compartment. First, push the key button down to release it. Place your thumb into the space where ...