If you do not receive push notifications (e.g. when parking), you can simply try to uninstall and reinstall the app Trackting – Smart Alarm.
1. In some phones, including Huawei and Asus, manufacturers have included an operating system setting that blocks notifications for advanced power saving.
To solve this problem just go to the Settings/Battery menu and exclude the Trackting application from this type of optimization. This is a common problem with easy solutions online: just search on Google for “notification problems Huawei P20 lite”.
2. Some third-party software on Android, such as antivirus and notification management softwares, may interfere with your notifications. We recommend removing this type of software to solve the problem.