How RV Leveling Systems Work
Learn how automatic and manual leveling jacks work to stabilize your RV, and why proper leveling protects appliances and comfort.
Leveling is not just for comfort; it's critical for the operation of absorption refrigerators and slide-outs. Learn how hydraulic and electric leveling systems function.
Hydraulic Leveling
Uses a central pump and fluid reservoir to extend heavy-duty jacks. Common on Class A motorhomes and large fifth wheels. These are powerful and fast but a fluid leak can disable the system.
Electric Stabilizer vs. Leveling
Stabilizer jacks (often scissor style) are meant to stop wiggle, NOT to lift the RV. Auto-leveling systems (like Ground Control 3.0) use strong electric jacks to actually lift and level the unit. Confusing the two can damage the jacks or RV frame.
The Leveling Process
Auto-level systems use internal sensors to determine the horizon. They extend jacks in pairs or sequences to prevent twisting the frame. Always unhitch and clear the area before hitting 'Auto Level'.
Important Notes
- •Use blocks or pads under jacks on soft ground
- •Never lift the wheels off the ground with leveling jacks unless specified by the manufacturer
- •Keep jack legs clean and lubricated with dry silicone spray
Need Expert RV Service?
Get matched with a qualified mobile RV technician in your area for professional diagnosis and repair.
Find a Technician