Tahoe 2WD V8-6.0L Hybrid (2008)
Oil Change Reminder Lamp: Service and Repair
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work
properly, the system must be reset every time the oil is changed.
When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON
message comes on. See DIC Warnings and Messages. Change the oil as soon as possible within the next 600 miles (1 000 km). It is possible that, if
driving under the best conditions, the oil life system might not indicate that an oil change is necessary for over a year. However, the engine oil and
filter must be changed at least once a year and at this time the system must be reset. Your dealer/retailer has trained service people who will perform
this work using genuine parts and reset the system. It is also important to check the oil regularly and keep it at the proper level.
If the system is ever reset accidentally, the oil must be changed at 3,000 miles (5 000 km) since the last oil change. Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil Life System (From Owner's Manual)
The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Whenever the oil is changed, reset the system so
it can calculate when the next oil change is required. If a situation occurs where the oil is changed prior to a CHANGE ENGINE OIL SOON message
coming on, reset the system.
Always reset the engine oil life to 100% after every oil change. It will not reset itself. To reset the Engine Oil Life System:
1. Display the OIL LIFE REMAINING on the DIC. If the vehicle does not have DIC buttons, the vehicle must be in P (Park) to access this display.
2. Press and hold the SET/RESET button on the DIC, or the trip odometer reset stem if the vehicle does not have DIC buttons, for more than five
seconds. The oil life will change to 100%.
If the CHANGE ENGINE OIL SOON message comes back on when the vehicle is started, the Engine Oil Life System has not reset. Repeat the
procedure.
GM Oil Life System Resetting (From Service Manual)
When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL SOON
message will come on. Change the engine oil as soon as possible within the next 1 000 km (600 miles). It is possible that, if driving under the best
conditions, the oil life system may not indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at
least once a year and at this time the system must be reset.
If the system is ever reset accidentally, change the engine oil at 5 000 km (3,000 miles) since last oil change.
How to Reset the Engine Oil Life System (From Service Manual)
The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Anytime the oil is changed, reset the system so it
can calculate when the next oil change is required. If a situation occurs where the oil is changed prior to a CHANGE ENGINE OIL SOON message
being turned on, reset the system.
If the vehicle does not have a Driver Information Center (DIC), do the following:
1. Turn the ignition to ON, with the engine OFF.
2. Fully press and release the accelerator pedal slowly three times within five seconds.
3. Turn the key to OFF. If the CHANGE ENGINE OIL SOON message comes back on when you start the vehicle, the engine oil life system has not
reset. Repeat the procedure.
If the vehicle has a DIC, do the following:
1. Turn the ignition to ON, with the engine OFF.
2. Press the MODE button until the DIC reads OIL LIFE LEFT/HOLD SET TO RESET.
3. Press and hold the SET button until 100 percent is displayed. You will hear three chimes and the CHANGE ENGINE OIL SOON message will go
off.
4. Turn the key to OFF.
If the CHANGE ENGINE OIL SOON message comes back on when you start the vehicle, the engine oil life system has not reset. Repeat the
