* Trip Odometer: This is usually reset by holding down a button on the instrument cluster itself. Look for a small button (often marked with a "0000" or a similar symbol) near the odometer display. You might need to press and hold it for a few seconds.
* Check Engine Light (CEL): You can't reset the CEL itself. The light illuminates to indicate a problem detected by the onboard diagnostics system. You need to fix the underlying problem causing the light to come on. An OBD-II scanner can help diagnose the issue. While a code reader can clear the code, the problem will likely cause the light to come back on unless fixed.
* Other warning lights: Similar to the CEL, other warning lights indicate problems that need to be addressed, not simply reset.
* Average fuel economy/range: These are usually reset by using buttons or a sequence of button presses on the instrument cluster. Consult your owner's manual for the specific procedure.
To find the exact reset procedure, you should consult your 2001 Dodge Ram 1500 owner's manual. It will have diagrams and clear instructions for resetting various functions on your instrument panel.
