Richard, It's called the Service Interval Counter reminding you that after about 30,000 miles it's time to get a comoplete service. If it's over 30,000 miles it's reminding you again.They can be reset back to ( 0 ) John Hervey www.specialTauto.com --- In dmcnews@xxxx, RJRavalli@xxxx wrote: > I know this has been covered in the past on the list, but I couldn't > find information anywhere on the web-site. What is the Lambda > light for (I think I already know, just want to make sure) and how/ > when does it shut off? > > Thanks for any help, > > Richard