Lexus Troubleshooting Questions? Ask a Lexus Expert
The vehicle "can" be driven without an alternator belt. It may not stay running very long however. The on-board computer and other systems need a constant supply of voltage. When the alternator belt is off, the alternator is not re-charging the battery, so all systems are running directly off the battery. This will quickly drain the battery below normal voltage levels and the engine will then shut down. So, yes, you can drive it without doing damage, just how far you will get is the question. If my answer has helped you, please help me by leaving a rating or accepting my answer so I may be credited. Rating or accepting my answer does not cost you extra. It allows me to be credited for my work. Please rate or accept. You can ask follow-up questions after you rate or accept.