1 year. If you get the cover changed, that will void it.
Also, warranty is not the same as insurance. If you break it or get it wet, you're out of luck.
My mother in-law bought three remote car starters last Christmas. The sellers agreed to install them for free since she was buying 3. Now they say they won't. When my brother in-law got his installed, it was a big mess and they still charged him $25 for some stupid remote fee. He's got...