1. Onboard batteries not properly charged
    Replace, or Charge battery completely.
  2. Servo lead wires are cut or frayed
    Fix or send the servo back to Traxxas for repair.
  3. Antenna lead cut, or damaged
    Send the receiver to Traxxas for repair.
  4. Damaged frequency crystal (27MHz)
    Replace the damaged crystal set (RX & TX) before continuing to run the model.
  5. Burned out resister or speed control (electrics with mechanical speed controls only)
    Visually inspect the resistor - if it's cracked or discolored replace it with a new one. If the resistor looks fine, you'll need to replace the mechanical speed control. The mechanical speed control includes a new resistor just in case.
  6. Motor is dirty or damaged (electric models)
    Give the motor a thorough cleaning and then install it back on the motor mount.
  7. Batteries in the transmitter are weak, or completely discharged
    Check for a bright red LED on transmitter. If the transmitter's LED blinks, install fresh batteries before continuing to run the model.
  8. Receiver or transmitter failure
    Return the component to Traxxas for service.
  9. Frequency conflict (27MHz)
    Someone nearby may already be using your frequency. Try another frequency or go to another area.
  10. VXL brushless motor phases loose (Velineon electrics only)
    Check the motor connections to the ESC and verify they are properly and securely connected.
  11. ESC requires setup (electric models)
    Follow the instructions shown in your manual for basic ESC setup.