Knowing where to put jack under car is one of the most critical safety skills any driver can have. To safely lift your vehicle, the jack must contact a solid, designated lift point on the car’s frame or pinch weld. Using the wrong spot can cause severe damage to your vehicle’s underbody or, worse, lead to the car falling off the jack. This guide will walk you through every step, from finding your lift points to safely supporting the vehicle.
We will cover the different types of jacks, how to locate the correct points on various vehicles, and the common mistakes you must avoid. Whether you’re changing a tire for the first time or performing routine maintenance, this information is essential for your safety and your car’s integrity.
Where To Put Jack Under Car
Before you even grab your jack, the first step is to understand the specific points on your vehicle designed to handle the immense pressure of lifting. These are not random spots; they are engineered by the manufacturer to be strong enough. Using any other area risks bending metal, puncturing components, and creating a deadly hazard.
Consult Your Owner’s Manual First
Your vehicle’s owner’s manual is the absolute best source of truth. It contains diagrams and descriptions of the exact jacking locations for your specific make, model, and year. Manufacturers often mark these points, but the manual will confirm it. If you don’t have a physical copy, a quick online search for “[Your Car Year, Make, Model] owner’s manual PDF” will usually find it.
Common Designated Jack Points
While locations vary, most modern unibody vehicles use similar designated points. Here are the most common ones you’ll look for.
Front Pinch Weld Jack Points
Located just behind the front wheels, this is a thickened seam where the vehicle’s side panels are joined. You will often see a small notch or plastic cover near it. The jack should contact the reinforced area of the weld, not the fragile sheet metal around it. Some cars have plastic rocker panels that cover this area, which may need to be removed or have a slot for the jack.
Rear Pinch Weld Jack Points
Similar to the front, these are found just ahead of the rear wheels. The same rules apply: lift only on the reinforced seam. On some vehicles, the rear point might be slightly forward of the wheel well.
Frame Rail Jack Points (Common on Trucks and SUVs)
Body-on-frame vehicles like trucks and older SUVs have solid frame rails running the length of the vehicle. Designated points are often marked along these rails, typically just behind the front wheels or ahead of the rear wheels. The frame is extremely strong, but you should still aim for the specific reinforced pad or area indicated.
Front Crossmember or Rear Differential
For some rear-wheel-drive vehicles, the central rear differential housing can be a safe jack point. Similarly, a sturdy front crossmember behind the engine may be used. Crucially, only use these if specified in your manual. The differential cover or crossmember must be solid metal, not a fragile aluminum oil pan.
How To Identify Jack Points Visually
If you’re without a manual, look for these visual cues. Get a flashlight and inspect the area just behind the front wheels and ahead of the rear wheels.
- Look for a flat, reinforced section of metal on the pinch weld.
- Search for a small notch, indentation, or arrow molded into the plastic trim.
- Check for a hard rubber or plastic pad attached to the frame or weld.
- Notice any areas that look obviously stronger or different from the surrounding thin metal.
Places You Should Never Put A Jack
Knowing where not to jack is just as important. Avoid these areas completely.
- The Engine Oil Pan: It’s thin aluminum or steel and will crush or puncture.
- The Floor Pan: This is the thin sheet metal forming the car’s interior floor; it will buckle immediately.
- Exhaust Pipes and Catalytic Converters: They are not load-bearing and will bend or break.
- Suspension Components: Control arms, axles, and springs are not designed for vertical jacking force.
- Any Plastic Bodywork or Splash Guards: These will shatter under weight.
Types of Jacks and Their Proper Use
Different jacks are designed for different purposes. Using the right tool for the job is a key part of safe lifting.
Scissor Jacks (The Common Spare Tire Jack)
These are the compact, X-shaped jacks included with most cars. They are designed for emergency tire changes only, not for extended work underneath the vehicle.
- Use: Place them only on the designated pinch weld points. They usually have a groove or saddle to fit the weld.
- Limitations: They have a small base and can be unstable. Never get under a car supported only by a scissor jack.
Hydraulic Floor Jacks
These are low-profile, rolling jacks with a long handle and a large saddle. They are stable, powerful, and ideal for maintenance work.
- Use: The large saddle can be positioned under frame rails, crossmembers, or designated central jack points. You can often use a floor jack to lift one entire side of the vehicle from a central point, then place jack stands.
- Advantage: Their large contact area and stability make them much safer than scissor jacks.
Bottle Jacks
These are compact, vertical hydraulic jacks often found with trucks and SUVs. They have a high weight capacity but a small base.
- Use: Best for frame rails and axle housings on heavier vehicles. Ensure the base is on perfectly level, solid ground to prevent tipping.
- Caution: Their small footprint makes them less stable than a floor jack on uneven surfaces.
Step-by-Step Guide To Safely Jack Up Your Car
Follow these steps in order every single time you need to lift your vehicle.
Step 1: Prepare Your Workspace
Safety starts before the car leaves the ground. Choose a firm, level, and solid surface like concrete or asphalt. Never jack on dirt, gravel, or grass, as the jack can sink or shift. Engage the parking brake fully. If you’re lifting the rear, chock the front wheels. If lifting the front, chock the rear wheels. Put the transmission in “Park” (automatic) or first gear (manual). Gather all tools you’ll need before starting.
Step 2: Locate The Correct Jack Point
Refer to your owner’s manual and visually identify the designated point near the tire you’re removing or the area you need to access. Clean off any major dirt or debris from the point so the jack makes solid contact.
Step 3: Position The Jack
Carefully position the jack’s saddle or groove directly under the lift point. For pinch welds, ensure the jack is centered so the weld won’t slip off. Double-check that no hoses, wires, or plastic are between the jack and the metal contact point.
Step 4: Lift The Vehicle Slowly
Begin pumping the jack handle smoothly and steadily. Watch the contact point and the vehicle as it rises. Stop lifting as soon as the tire clears the ground by about an inch or two. You only need enough clearance to work. Do not lift higher than necessary, as this increases instability.
Step 5: Place Jack Stands Immediately
This is the most critical safety step. A jack is a lifting device, not a support device. Never, ever work under a vehicle supported only by a jack.
- With the car lifted, slide a jack stand under a solid, designated support point. This is often a reinforced section of the frame or subframe near the jack point.
- Adjust the stand’s height so it fits snugly when lowered slightly. The stand, not the jack, should bear the vehicle’s weight.
- Slowly and carefully lower the hydraulic jack until the vehicle’s weight rests fully on the jack stand. You should hear the load transfer.
- For added safety, place a second stand under another secure point if possible. Also, you can put the removed wheel under the rocker panel as a final backup.
Step 6: Lowering The Vehicle
When work is complete, reverse the process. First, use the jack to slightly lift the vehicle off the jack stands. Remove the stands, then slowly lower the jack all the way, controlling the descent. Remove the wheel chocks last.
Special Considerations for Different Vehicles
Lifting A Truck Or SUV
These heavier vehicles often have clearly marked frame pads. Use a jack with adequate weight capacity (check your owner’s manual for curb weight). Bottle jacks or high-lift floor jacks are common. The rear differential can sometimes be a safe central jack point for many trucks, but always verify in the manual first.
Lifting A Sports Car Or Low Vehicle
Low ground clearance requires a low-profile floor jack to fit underneath. Pinch welds are almost always the primary point. Be extra cautious not to damage side skirts or aerodynamic body kits. You may need to drive onto thin boards to create enough clearance for the jack to slide under.
Using A Lift Point Adapter Or Puck
For vehicles with pinch welds, a rubber or hockey puck adapter on your jack’s saddle can prevent damage to the weld and provide a more secure fit. These are inexpensive and highly recommended.
Frequently Asked Questions (FAQ)
Can I Jack Up My Car From The Side?
Yes, but only at the specific front and rear side pinch weld or frame points designated by the manufacturer. You should never place a jack in the middle of the side rocker panel, as this will cause major damage.
Where Do You Put A Jack To Lift The Whole Front Of A Car?
To lift the entire front end, you need a central front jack point. This is often a reinforced crossmember or subframe behind the engine. Consult your manual for its exact location. Use a floor jack on this point, lift until both front wheels are off the ground, then support each side with jack stands on the regular side jack points.
Is It Safe To Jack Up A Car On A Slight Slope?
No. You should only jack a car on a level, solid surface. Jacking on a slope greatly increases the risk of the vehicle rolling or the jack tipping over. If you have a flat tire on a slope, try to coast to a level area before attempting to change it.
How Many Jack Stands Do I Need?
At a minimum, you need one stand for the corner you are working on. For any work where you will be under the vehicle, using two stands for added stability is a very wise precaution. Never rely on just the jack.
What If My Jack Point Is Rusted Or Damaged?
Extensive rust can weaken the structural integrity of a jack point. If the metal is severely corroded or crumbling, do not attempt to jack there. You will need to have the vehicle inspected by a professional mechanic who can determine a safe alternative or perform the necessary repairs. Forcing a jack onto a rusted point is extremely dangerous.
Finding where to put jack under car is a fundamental task that demands respect and precision. Always prioritize safety over speed. By consistently using your owner’s manual, identifying the correct reinforced points, and supporting the vehicle with jack stands, you protect yourself and your vehicle from serious harm. Taking these steps ensures that simple maintenance like a tire change remains a routine task, not a hazardous ordeal. Remember, if you are ever unsure about a jacking point, it is always best to consult a professional.