Toyota Repair Problems? Ask a Mechanic for Answers ASAP
Whether it is safe to continue driving depends on what the message on the display said. The red triangle and the check engine light can come on for reasons that will not harm the vehicle if you continue driving, but they can also come on for reasons such as oil pressure loss, which can cause the gas engine to fail.
Do you have any other information about what was displayed?
Please let me know if you need any additional information. Don't forget to rate (that's how we experts get paid).