When performing a parallel parking maneuver, you reverse into a curbside space between two parked cars using a sequence of steering adjustments that angle your vehicle in, then straighten it out. The key is finding a space at least 1.5 times the length of your car, positioning yourself correctly before you begin backing up, and making two deliberate steering wheel turns at the right moments. Your final position should leave your wheels no more than 12 inches from the curb.
Finding and Approaching the Space
Standard parallel parking spaces are typically 20 to 22 feet long and 8 feet wide, based on federal highway guidelines. An average sedan is about 15 feet long, so a 22-foot space gives you roughly 7 feet of extra room to work with. As a beginner, look for spaces that are generous. Tight spaces become easier with practice.
Once you spot a space, signal early so drivers behind you know you’re about to slow down. Pull up alongside the car in front of the empty space, positioning your vehicle roughly two feet away from it, with your rear bumpers roughly even. Put your car in reverse and check all mirrors before you start moving.
The Three Steering Phases
The entire maneuver comes down to three steering moves: turn right, turn left, then straighten. The timing of each turn is what determines whether you end up neatly in the space or awkwardly angled.
Phase one: steer toward the curb. With your car in reverse, turn the steering wheel all the way to the right (assuming you’re parking on the right side of the street). Back up slowly. You’re aiming to angle your car at roughly 45 degrees into the space. A reliable visual cue: keep reversing until you can see the headlights of the car behind you in your driver’s-side mirror. At that point, your car is angled enough to begin the next phase.
Phase two: steer away from the curb. Now turn the steering wheel all the way to the left. This swings the front of your car toward the curb and pulls the whole vehicle into the space. Continue reversing slowly, watching your passenger-side mirror. When that mirror lines up with the rear bumper of the car in front of you, your car is close to straight in the space.
Phase three: straighten and adjust. Center the steering wheel and stop. At this point you should be roughly parallel to the curb. If you’re not perfectly positioned, shift into drive, pull forward slightly with a small steering correction, then reverse again. Most people need one or two small adjustments to get the spacing right.
Visual Reference Points That Help
The hardest part of parallel parking is knowing when to turn, because you can’t see the curb or the cars behind you very well. Specific visual cues solve this problem.
Before you start reversing, the middle of your car should line up with the rear bumper of the car beside you. This is your starting position. As you back up with the wheel turned right, watch for the rear car’s headlights to appear in your driver’s-side mirror. That’s your signal to switch the wheel to the left. As you continue backing with the wheel turned left, watch for your passenger mirror to line up with the front car’s rear bumper. That tells you it’s time to straighten out.
These reference points work for most sedans and small SUVs. If you drive a longer vehicle like a full-size truck, you’ll need slightly more space and the visual cues will shift. Practice in an empty lot with cones or recycling bins to find your own car’s specific reference points before attempting it in traffic.
How Close to the Curb You Need to Be
Most states require your wheels to be within 12 inches (one foot) of the curb when parallel parked. In practice, 6 to 12 inches is the target range. Closer than 6 inches and you risk scraping your tires or hubcaps. Farther than 12 inches and your car sticks out into the travel lane, which can earn you a ticket or a failed driving test.
If you end up too far from the curb after your first attempt, don’t panic. Pull forward while turning the wheel slightly toward the curb, then reverse straight back. Repeat until you’re within range. This kind of repositioning is completely normal and not penalized on most driving tests as long as your final position is correct.
Common Mistakes and Why They Happen
The most frequent error is starting the maneuver from the wrong position. If you pull up too far ahead of the front car, or leave too much distance between your car and the car beside you, the geometry of the whole maneuver changes and no amount of steering correction will put you in the right spot. Reset and start over rather than forcing it.
Turning the wheel too early is another common problem. If you crank the wheel right before your bumpers are aligned, your rear end swings into the curb before your car is far enough into the space. Turning too late creates the opposite issue: you end up with your rear sticking out into traffic.
Speed also matters more than people expect. The maneuver should happen at a crawl, barely above idle speed. Going too fast leaves you no time to check mirrors, judge distances, or correct your steering. If you feel rushed, stop the car completely. There’s no rule against pausing mid-maneuver to reassess.
On driving tests specifically, poor parallel parking remains one of the most common reasons people fail. States like New York and Pennsylvania require demonstrated proficiency. Practicing with cones in an empty lot, rather than relying on a car’s parking assist system (which typically isn’t allowed during the test), is the most reliable way to prepare.
Parallel Parking on a Hill
If you parallel park on a slope, you need to turn your wheels in a specific direction after you’ve parked to prevent the car from rolling into traffic if the brakes fail.
- Uphill with a curb: Turn your front wheels away from the curb (to the left). If the car rolls backward, the rear of the front tire catches the curb and stops.
- Downhill with a curb: Turn your front wheels toward the curb (to the right). If the car rolls forward, the tire meets the curb and stops.
- Any hill with no curb: Turn your wheels to the right regardless of direction. This ensures the car rolls off the road and away from traffic rather than into it.
After turning the wheels, set your parking brake. This applies every time you park on any noticeable incline, not just steep hills.
How Parking Assist Technology Works
Many newer vehicles come with automated parking systems that can steer the car into a parallel space while you control the brake and gas. These systems use ultrasonic sensors mounted around the bumpers that detect obstacles up to about 18 feet away and measure distances as close as half an inch. The car first scans for a space large enough, then calculates the steering path and executes the turns automatically.
These systems work well in practice, but they have limitations. They can struggle with unusually shaped objects, very low curbs, or spaces that are technically large enough but awkwardly shaped. Knowing how to parallel park manually remains essential, both for the driving test and for the many situations where technology can’t help.