What does an oil can and wrench symbol on dash of a Montana van mean?

That combined symbol on your Montana van's dashboard indicates low engine oil pressure. It's a serious warning. You should immediately pull over safely and turn off the engine. Driving with low oil pressure can cause catastrophic engine damage.

Check your oil level using the dipstick. If it's low, add oil appropriate for your engine (check your owner's manual). If the oil level is fine, you likely have a more serious problem requiring professional attention (e.g., a faulty oil pump or leaking oil). Do not continue driving until the problem is resolved.