Lexus Troubleshooting Questions? Ask a Lexus Expert
Hello, I will try my best to help you with your concern.
Usually the alarm system will not keep the vehicle from cranking. Usually it will crank and not start. That's what seems to be going on with your vehicle. It sounds like you have a starter issue. The starter is intermittently failing causing a no crank condition. Would you ike to try and diagnose this yourself? do you have access to a volt meter?