NHTSA recommends checking tire pressure regularly for safety; RVIA covers RV tire requirements. See 12V vs 120V air compressor, can portable inflator fill RV tires. Electrical: RV electrical. Towing: RV towing.
RV tires typically need 65–80 PSI. Check the placard on your rig and never exceed the max on the sidewall.
If you're diagnosing RV electrical or appliance problems, these guides may help:
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Last updated: March 2026 · Reviewed for technical accuracy