Yes, Uber can temporarily or permanently deactivate your account for an unusually high cancellation rate. While Uber understands that circumstances may arise where you cannot complete a trip, maintaining a high rate of cancellations after accepting a ride is viewed as a deterioration of platform reliability. Uber monitors your rate based on your last 100 accepted trips. If your rate becomes significantly higher than the average for your city, you will typically receive multiple in-app warnings and alerts before any action is taken. Serious cases—such as "canceling to solicit cash" or "pressuring riders to cancel"—can lead to immediate permanent deactivation. Drivers can monitor their current standing in the "Review Center" of the driver app. To improve your rate, you must complete more trips to push older canceled requests out of your rolling 100-trip average, thereby demonstrating your commitment to providing a consistent and reliable service for riders.