Most stoves are designed for counters that are 25 1/2 inches deep. Either your counters are shallower or something is preventing you pushing the stove back all the way. Can you show a photo of the back of the stove where it meets the wall?
FWIW, the something "preventing you pushing the stove back all the way" is, IME, usually a 240v power outlet &/or a pipe which is someplace on the back wall or floor other than where the range needs it to be. If things aren't where your smoothtop range needs them to be, you'll have to reposition them or have them repositioned. Acceptable locations for your range will be shown in a diagram in its installation instructions. Those instructions will also show if your slide-in stove is unusually deep. If you do not have the instructions, maybe you can tell us your stove's brand and model number so someone here can check the installation instructions for you?
Most stoves are designed for counters that are 25 1/2 inches deep. Either your counters are shallower or something is preventing you pushing the stove back all the way. Can you show a photo of the back of the stove where it meets the wall?
What Hallett & Co. said.
FWIW, the something "preventing you pushing the stove back all the way" is, IME, usually a 240v power outlet &/or a pipe which is someplace on the back wall or floor other than where the range needs it to be. If things aren't where your smoothtop range needs them to be, you'll have to reposition them or have them repositioned. Acceptable locations for your range will be shown in a diagram in its installation instructions. Those instructions will also show if your slide-in stove is unusually deep. If you do not have the instructions, maybe you can tell us your stove's brand and model number so someone here can check the installation instructions for you?