Two problems related to cruise control have been reported for the 2004 Infiniti Q45. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Infiniti Q45 based on all problems reported for the 2004 Q45.
Dt:the consumers vehicle has a cruise control that has a chip that if a car gets too close to it slows down. When driving on the highway and somebody cuts the consumer off it feels like someone stepped on the brake due to an abrupt drop in speed. Contacted manufacturer, they said can't separate them because it only shuts down cruise control or it goes into the icc. The dealership says they had many complaints, but manufacturer says it is not a problem.
The consumer believes that the laser controlled cruise control could be a potential safety issue to an unwary driver. The system does not work in the rain or when driving into the sun at sunset. The system activates the brakes while passing other vehicle and there is no audible acknowledgemet when the system slow down for a slower vehicle.