Common problems associated with remote car starters include a vehicle being out of range for the remote, or the battery in the remote itself needing to be replaced. Another issue is that the remote needs to be reprogrammed.
Newer vehicles come equipped with an Original Equipment Manufacturer, or OEM, car immobilizer system. This can cause a problem with the remote starting and keeping the vehicle running. If this occurs, an additional part to override the OEM must be purchased. If connecting wires aren't secure, it causes the unit to not work. An installation technician can easily rectify these problems. As with any electronic device, the remote may have just worn out.