In traditional Jain monastic conduct, a monk is expected to walk and avoid vehicles. A wheelchair is generally treated as a vehicle, so ordinarily it is not suitable for a monk.

However, in exceptional cases of illness, injury, or severe physical inability, some communities or acharyas may give different guidance based on practical necessity and discipline of the specific tradition.

So, in simple terms:

• Normally: No
• In special medical necessity: depends on the acharya/tradition

If you want, I can also explain this according to Digambar and Shwetambar traditions.