You sure that's not the maintenance reminder message that's on?
Lasts about 2 minutes after start, then goes out. Comes on every 7500 miles/12 months...reset using the key position and trip odometer...
Mine says something like, "Service engine soon"...but I can't recall the exact language...
2006 Corolla (kid's car - 165K, Eco Contacts, Castrol Edge 5W30)
2005 MB S600 (84K, Michelin AS3, M1 0W40)
2002 V70-XC (200K, AltiMax RT43, Pennzoil Ultra 5W30)
2002 V70-T5 (179K, IPD bars, Bilsteins, Conti PureContact, Mobil 1 0W40)
1992 MB 300E (Sportline - 160K, Yokohama Avid, Liqui Moly 5W40)
1990 4-Runner (V6, 4WD, mild lift - 257K, 31" BFG AT KO, Castrol 10W40)
1932 Packard Sedan (straight 8, dual sidemount spares, original paint and interior, Shell Rotella 15W40)