Limp mode is a safety feature in vehicles that reduces engine power when the vehicle detects a problem to protect the engine and transmission from further damage. While it's uncommon for the pedal commander to cause limp mode, it is possible if the device malfunctions or is not installed correctly. If you suspect that your pedal commander is causing your vehicle to enter limp mode, try disconnecting the device to see if the problem persists. If the issue continues, consult a professional mechanic to diagnose and resolve the underlying issue. If the problem only occurs when the pedal commander is connected, contact the manufacturer for assistance.