Maintenance required

My maintenance required light will not go off. Every thing is ok wiht my truck. Its a 1988 Dodge D250 3/4 ton fuel injected 318. Please if you know any way of resetting it let me know!

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.