An identification system for use in a primary vehicle to identify a status of a group of secondary vehicles (104, 204), the system comprising: a secondary vehicle data collector for obtaining data regarding emissions from a secondary vehicle (104, 204) of the group of secondary vehicles (104, 204); a secondary vehicle feature detection module for detecting active-status indicators and for processing the data to detect and identify the active-status indicators based on the emissions; a secondary vehicle status analyzer for analyzing characteristics of detected active-status indicators and for compiling and categorizing the active-status indicators by type; and a traffic jam identification module for calculating a probability that the group of secondary vehicles are part of a traffic jam, wherein the traffic jam identification module is configured to determine that at least one active-status indicator was identified and to, then, increase the probability that the secondary vehicles (104, 204) are in a traffic jam based on the type of the identified active-status indicators, and for determining whether the group of secondary vehicles (104, 204) are in a traffic jam or parked based on a comparison of the calculated probability and a predetermined threshold probability level, wherein the group of secondary vehicles (104, 204) is in a traffic jam if the calculated probability is at or above the threshold probability level; an autonomous driving system for providing an autonomous driving function of the primary vehicle when the primary vehicle is travelling below a predetermined speed threshold level, wherein when the probability that the group of secondary vehicles (104, 204) are in a traffic jam reaches the threshold probability level and the primary vehicle is travelling at a speed below the speed threshold level, the identification system is configured to prompt a user of the primary vehicle to activate the autonomous driving function. a secondary vehicle data collector for obtaining data regarding emissions from a secondary vehicle (104, 204) of the group of secondary vehicles (104, 204); a secondary vehicle feature detection module for detecting active-status indicators and for processing the data to detect and identify the active-status indicators based on the emissions; a secondary vehicle status analyzer for analyzing characteristics of detected active-status indicators and for compiling and categorizing the active-status indicators by type; and a traffic jam identification module for calculating a probability that the group of secondary vehicles are part of a traffic jam, wherein the traffic jam identification module is configured to determine that at least one active-status indicator was identified and to, then, increase the probability that the secondary vehicles (104, 204) are in a traffic jam based on the type of the identified active-status indicators, and for determining whether the group of secondary vehicles (104, 204) are in a traffic jam or parked based on a comparison of the calculated probability and a predetermined threshold probability level, wherein the group of secondary vehicles (104, 204) is in a traffic jam if the calculated probability is at or above the threshold probability level; for calculating a probability that the group of secondary vehicles are part of a traffic jam, wherein the traffic jam identification module is configured to determine that at least one active-status indicator was identified and to, then, increase the probability that the secondary vehicles (104, 204) are in a traffic jam based on the type of the identified active-status indicators, and for determining whether the group of secondary vehicles (104, 204) are in a traffic jam or parked based on a comparison of the calculated probability and a predetermined threshold probability level, wherein the group of secondary vehicles (104, 204) is in a traffic jam if the calculated probability is at or above the threshold probability level; an autonomous driving system for providing an autonomous driving function of the primary vehicle when the primary vehicle is travelling below a predetermined speed threshold level, wherein when the probability that the group of secondary vehicles (104, 204) are in a traffic jam reaches the threshold probability level and the primary vehicle is travelling at a speed below the speed threshold level, the identification system is configured to prompt a user of the primary vehicle to activate the autonomous driving function.