Hello, based on the symptoms you’ve described, it sounds like there may be an issue with the transmission or the engine of your Acura RDX. The fact that the car isn’t moving even when you take your foot off the brake and press the accelerator suggests that there may be an issue with the transmission, such as a slipping or failing clutch.
However, before you take your car to the service center, there are a few things you can try. First, check the transmission fluid level and condition. If the fluid is low or dirty, it can cause problems with the transmission. Additionally, you may want to check the battery and alternator, as a weak or failing battery can cause similar symptoms.
If none of these steps solve the issue, then it’s best to take your car to the service center as planned. The technician will be able to perform a diagnostic test to determine the root cause of the problem and recommend the appropriate repair. Good luck, and I hope your car is back to normal soon!