Here are the most common methods:
* Method 1 (Most Common): The "Key Cycle" Method
This involves turning the ignition key on and off repeatedly. The exact sequence varies slightly, but it usually goes like this:
1. Turn the ignition key to the "ON" position (but don't start the engine). Wait about 5 seconds.
2. Turn the key to the "OFF" position.
3. Repeat steps 1 and 2, usually three to five times.
4. After the final "OFF" cycle, observe the oil change light. It should be off.
* Method 2: Using the DIC (Driver Information Center) if equipped:
Some 1999 Suburbans had a Driver Information Center with a menu system. If yours does, you'll likely need to navigate through the menus using the steering wheel controls. Look for options like "Maintenance," "Oil Life," or similar. The specific steps will vary depending on your Suburban's DIC. Your owner's manual will be your best guide here.
* Method 3: Using a scan tool:
An OBD-II scan tool can reset the oil life monitor. This is the most reliable method, as it directly interacts with the vehicle's computer system. Many affordable OBD-II scanners are available at auto parts stores.
If none of these methods work:
* Consult your owner's manual: This is the definitive guide for your specific vehicle's features and maintenance procedures.
* Search online for your specific trim level: Searching for "[Your Suburban's Trim Level] oil life reset" on Google or YouTube might yield specific instructions.
* Visit a mechanic: If you're uncomfortable attempting these steps yourself, a mechanic can quickly reset the light.
Important Note: Resetting the oil change light does *not* actually change the oil. You must still change your oil and filter at the recommended intervals (refer to your owner's manual) regardless of whether the light is on or off. The light is simply a reminder.
