The MK64FX512VMD12 only has 1 can interface according to docs and NPX's site.

Board-Teensy-3.1-3.5-3.6.md

@@ -22,7 +22,7 @@ Cortex M4 based
 * 24 pins available for analog 13-bit A/D
 * 14 timers, 20 PWM
 * 6xUART
-* 3xSPI, 3xI2C, 2xCAN, 16xDMA
+* 3xSPI, 3xI2C, 1xCAN, 16xDMA
 * RTC
 * 2 DAC channels
 * SD card