How to Safely Use Floor Jacks and Jack Stands

To use a floor jack and jack stands safely, lift the vehicle only at the manufacturer-approved lift points, support it at the approved stand points, and never work underneath a car held only by a floor jack. Match both tools to the vehicle’s weight, prepare a firm, level work area, and confirm that the vehicle is stable before you get underneath it. These steps suit routine work such as an oil change, but a damaged lift point, badly uneven surface, or uncertain procedure is a reason to stop rather than improvise.

Is your floor jack and stand setup safe for this car?

Start with the vehicle manual and the labels on the equipment. The jack’s rated capacity must be greater than the load it will actually lift. The jack stands must also have a suitable rated capacity for the end of the vehicle they will support. Do not assume that a pair of stands can safely carry the entire vehicle unless their rating and instructions say so. If a rating is missing, unreadable, or below the vehicle’s listed weight, do not use that equipment.

Before starting, have these prerequisites ready:

• The vehicle owner’s manual, with the approved lift points and support points identified.
• A floor jack and two or more jack stands with readable capacity labels and working locks.
• Wheel chocks suited to the tires.
• A firm, level surface such as sound concrete. Asphalt can soften in heat, while gravel, soil, grass, slopes, and cracked or broken pavement can let equipment shift or sink.
• Safety glasses and enough lighting to see the lift points and stand saddles clearly.
• A wheel wrench or socket if a wheel must be removed.

Inspect the jack before using it. Look for leaking hydraulic fluid, bent arms, damaged wheels, cracked welds, and a saddle that is loose or badly worn. Confirm that the jack raises and lowers smoothly and that its release control works as designed. Inspect each stand for bent metal, cracks, weakened corrosion, damaged teeth or pins, and a locking mechanism that engages fully. Never modify a stand, stack objects on it, or use a homemade adapter.

Remove loose items from the work area. Put an automatic transmission in Park or a manual transmission in first gear or reverse, then apply the parking brake. Chock the wheels that will remain on the ground, placing the chocks snugly against both sides of at least one tire where practical. If the manual gives a different procedure for your vehicle, follow it.

If you will remove a wheel, loosen its lug nuts slightly while the tire is still on the ground. Do not remove them yet, and do not use the jack to break loose a stubborn nut. Find the manufacturer-approved lifting point, such as a specified reinforced jacking pad or subframe location, and the separate support points intended for jack stands. A point that can lift the car is not automatically safe for supporting it.

How to lift the car and place the jack stands

Lift one end of the vehicle at a time, following the manual’s procedure. Keep the other end on the ground and chocked unless the manufacturer specifically directs another arrangement.

1. Park the vehicle on the prepared level surface and set the transmission and parking brake. Confirm that the wheel chocks are tight against the tires that will stay on the ground.
2. Loosen the lug nuts slightly if the wheel will be removed. Leave every nut threaded several turns so the wheel remains secure while the vehicle is still on the ground.
3. Position the floor jack under the approved lift point. Center the saddle on that point before raising it, and keep the jack’s wheels and frame aligned as the lifting arm rises.
4. Raise the vehicle slowly until the tire clears the ground by the amount needed for the work. Stop and check that the jack remains centered and stable.
5. Set one jack stand at the approved support point on one side. Adjust its height before placing it under the vehicle, then make sure its saddle or top is centered on the designated reinforced area.
6. Set the second jack stand at the matching approved support point on the other side. Adjust both stands to equal or appropriate heights so the supported end remains level as specified by the vehicle and equipment instructions.
7. Raise or lower the floor jack in small movements until the vehicle’s weight transfers evenly onto both stands. Keep your hands and feet clear of pinch points.
8. Confirm that both stands remain fully seated. Lower the floor jack completely only after the stands are carrying the vehicle. Keep the floor jack positioned nearby as a backup if it can remain safely clear and stable, but never use it as the sole support or in a way that could interfere with the stands.
9. If a wheel was removed, finish removing the lug nuts only after the vehicle is securely supported. Store the wheel and hardware where they cannot roll into the work area.

If the vehicle shifts, a stand tilts, or the saddle loses contact while you are lifting, stop. Lower the vehicle carefully if possible, correct the setup from outside the danger area, and do not crawl underneath to reposition equipment.

Where should the jack stands go, and what must never support the car?

Jack stands belong only under the support locations identified by the vehicle manufacturer. These are often reinforced sections of the unibody, a specified frame section, or particular points on a subframe. The exact locations vary by model, and some vehicles use different points for lifting and supporting. Use the manual rather than guessing from the shape of the underside.

Never place a stand under a thin floor pan, rocker-panel sheet metal, exhaust pipe, fuel tank, plastic underbody panel, or another body panel that is not designated as a support point. Avoid suspension arms, steering components, or axle tubes unless the manufacturer specifically approves that location. A suspension part may look strong but can move, bend, or allow the car to settle unpredictably.

For example, a vehicle manual might specify a reinforced central front lift point and two side support pads behind the front wheels. You would lift at the central point, place one stand under each specified side pad, and lower the vehicle evenly onto them. You would not substitute the oil pan, a thin pinch weld that is not marked for support, or a convenient suspension arm.

Never work beneath a car held only by a floor jack. Hydraulic pressure can bleed off, a seal can fail, or the jack can roll as the vehicle’s balance changes. Do not use a tire, wooden blocks, bricks, ramps not rated for the vehicle, or stacked objects as improvised supports. A spare tire may protect a wheel from damage in some emergency procedures, but it is not a replacement for correctly rated jack stands.

Keep the stands on the same firm, level surface as the jack. If the surface slopes or one side is soft, the stands may not carry their share of the load, and the vehicle can slide sideways as it settles.

How do you know the car is secure before crawling underneath?

Inspect the setup before any part of your body goes under the vehicle. Look at each stand from the side and confirm that its height-adjustment pin, ratchet lock, or other locking device is fully engaged according to the stand’s design. A ratchet tooth that is only partly engaged is not a secure lock.

Check that every stand is upright, its base is flat on the ground, and its top is centered on the approved support point. The vehicle should not be resting on an edge of the saddle or on a nearby panel. Check that the jack saddle stayed aligned during lowering and that no stand has shifted, sunk, or tilted. If the floor jack remains nearby as a secondary precaution, it must not push the vehicle sideways or take the place of a properly locked stand.

Verify the wheel chocks again. The chocked tires should remain firmly in contact with the ground, and the transmission should still be in Park or in the selected manual-gear setting with the parking brake applied. Look underneath from outside the vehicle for anything that has moved, then gently push the vehicle at a solid area near the side. Use controlled force rather than a violent shove. The car should settle without rolling, rocking excessively, or moving a stand.

If it rocks, stop and lower it from a safe position before correcting the setup. Do not reach underneath to catch, reposition, or inspect a falling or shifting vehicle. Once the vehicle is stable, keep tools and your body clear of the stands, jack, and chocks while working.

Before lowering the car, remove all tools and parts from underneath. Reinstall any wheel and hand-tighten its lug nuts as appropriate. Raise the vehicle slightly, remove the stands, and lower it slowly. Tighten the lug nuts to the vehicle manufacturer’s specification after the tire is back on the ground.

What should you do when the lift points are hard to reach or the car will not sit level?

Low-clearance vehicles can prevent a normal floor jack from reaching the approved lift point. Do not drive onto loose boards or use an unapproved ramp just to create clearance. Use a jack designed and rated for that vehicle, or follow the manufacturer’s stated method for gaining access. A thin protective pad may be permitted by the jack or vehicle instructions, but it must not conceal damage or change the load path.

An uneven driveway is not a safe place to compensate with different stand heights. Move the vehicle to a firm, level surface. The supported end should be level unless the manufacturer’s procedure specifically says otherwise; raising one wheel or one corner can shift the vehicle’s center of gravity and put unexpected force on the stands. For a one-wheel repair, use the manufacturer’s one-wheel lift point and still chock the other wheels. Never place a stand under an unapproved suspension component simply because it is close to the wheel.

If a lift point is bent, crushed, badly rusted, cracked, or covered by uncertain corrosion, do not lift there. The same applies if you cannot clearly identify the approved support points, the vehicle’s weight exceeds the equipment ratings, or the jack or stand has damage, leaks, missing parts, or a lock that will not engage. Lower the vehicle if it is already raised and have a qualified shop inspect it. Paying for a lift or repair is far safer than guessing at a substitute support point.

Conclusion

Before starting the oil change or repair, make the setup predictable: use level ground, correctly rated equipment, approved lift and support points, locked stands, tight chocks, and a stability check. Raise only the end you need, transfer the load onto both stands, and keep the floor jack available as a backup without relying on it as support. If the procedure requires improvising around damaged metal, poor ground, or missing equipment information, stop and use a professional lift instead.