Seville V8-273 4.5L (1989)
Engine Oil: Customer Interest
Engine - False Change Oil Message
NO.: 90-I-42
DATE: Feb. 1990
GROUP: 0
CORP. NO.: 018304
SUBJECT:
FALSE "CHANGE ENGINE OIL" MESSAGE ON 1989-1990 ALLANTES, ELDORADOS, AND SEVILLES
Some 1989-1990 Allantes, Eldorados, and Sevilles may present the owner with a false "Change Engine Oil" message at key on after the start of a new
decade (i.e., on or after January 1, in the years 1990, 2000, 2010, etc.). This condition will occur on all vehicles which have had the oil life index
previously reset. To repair this condition:
1.
Obtain the mileage and time since the last oil change from the customer. Determine if oil change is required. Refer to schedule in Owner's Manual.
If an oil change is indicated, recommend to owner that an oil change be performed.
2a.
If customer elects to have oil changed: Perform oil change. Reset the oil life index following the procedure listed in Section 8C of the Final
Service Information Manual.
2b.
If oil change is not required and/or customer elects not to have oil changed: Reset the oil life index following the procedure listed in Section 8C of
the Final Service Information Manual Advise the customer that the next oil change should be determined using mileage or time (per the schedule
in the Owner's Manual) rather than using the oil life monitor. Additionally, advise owner that the oil life monitor should be reset after the next oil
change per instructions in the Owner's Manual.
The oil life monitor will function correctly once reset after an oil change.
Future releases of BCM service EPROM's will contain a correction for this condition.
