Method 1: Simple Oil Change Indicator Light (most likely):
This method involves cycling the ignition switch. It often relies on the truck's computer detecting a change in oil level or pressure after an oil change.
1. Change the oil: Perform a complete oil and filter change.
2. Start the engine: Run the engine for a few minutes to allow the oil pressure to build.
3. Turn off the engine: Completely shut off the ignition.
4. Wait: Wait for at least 30 seconds to a few minutes.
5. Restart the engine: Start the engine again.
The oil change light *should* go off after a short period (sometimes it takes a few drive cycles). If not, proceed to Method 2.
Method 2: Using the Trip Odometer Reset (If Applicable):
Some 2010 Ram 2500s might have a more advanced system that displays the oil life percentage or miles until next change on the instrument cluster. This typically requires resetting a trip odometer. The procedure varies slightly depending on your specific model's instrument cluster. Look for a button on the steering wheel or near the instrument panel labeled "TRIP" or similar. There's no universal method, and a manual might be needed. Consult your owner's manual.
Method 3: OBD-II Scanner (Most reliable):
An OBD-II scanner can accurately reset oil life reminders. Many inexpensive scanners are available online and at auto parts stores. Once connected, navigate to the relevant oil life parameter in the scanner's menu and reset it.
Important Considerations:
* Owner's Manual: Your owner's manual is the definitive source for your vehicle's specific procedures. Check it first!
* Oil Change Interval: Don't solely rely on the indicator light. Always follow the recommended oil change intervals specified in your owner's manual, considering your driving conditions (severe service adds stress on the oil). These intervals are typically more frequent than what the indicator suggests.
If none of these methods work, a visit to a mechanic or dealership might be necessary. They have diagnostic tools to properly reset the system.
