When I started my engine Tahoe 2004 "service ride control"light is on. Why? how critical it is?

SOURCE: What does the message "service ride control" mean?

This message is alerting the driver of a suspension problem. These cars have active shock absorbers that react to road surface by electronic sensors in the shocks.This system is complex and requires the assistance of a trained mechanic. Bring your vehicle to a mechanic shop to have it checked. hope this helps

SOURCE: service ride control

more than likely its a bad wheel sensor or some kind of sensor, the ride control monitors the traction and suspension, I had to replace a wheel sensor that caused the service ride control, i think the part was around 90.00 and the dealer charged around 50.00 to put it in, more than likely that is your problem, just cross your fingers to hope its nothing more

SOURCE: 2005 Cadillac Escalade service ride control

I have a 2003 Escalad and my SERVICE RIDE CONTROL" say on

SOURCE: 2002 cadillac escalade service ride control light

could be a sesord mounted near airbag.need a cpc that scan caddy to see whats going on

SOURCE: what does service ride control mean on a 2002

It should be referring to its rear air-ride suspension system. That is if it came equipped with that feature.