One of the most commonly tested — and most commonly memorized incorrectly — topics on the DMV permit test is which way to turn your wheels when parking on a hill.
Most people try to brute-force memorize: "uphill with curb = turn wheels away... or was it toward?" and then panic when they forget.
This article is different. By the end of it, you'll understand the reason behind the rule so well that you'll never need to memorize anything again. You'll be able to figure it out from logic, every single time.
The One Principle That Explains Everything
Before we look at any specific scenario, here is the single principle you need to understand:
The Goal
If your brakes fail and your car starts to roll, the curb should stop your car — not let it roll into traffic.
Your job is to angle the wheels so that if the car moves, it moves toward the curb (where it can be stopped), not away from the curb (into the road).
That's it. That's the whole rule. Everything else follows from this.
Scenario 1: Parking Facing Uphill — With a Curb
Situation
Your car is pointed uphill. There is a curb to your right.
Think It Through
If your brakes fail, gravity will pull your car backward down the hill. The car will roll backward.
If the wheels are turned left (away from the curb), the rolling car's rear would swing toward the curb — but the front would drift into traffic. Bad.
If the wheels are turned right (toward traffic / away from the curb), as the car rolls back, the front wheels will contact the curb and stop the car.
✅ Rule: Turn wheels AWAY from the curb (toward traffic)
As the car drifts backward, the front wheels catch the curb and prevent the car from rolling into traffic.
Memory shortcut: "Uphill with curb — away from curb." But more importantly, you now understand why.
Scenario 2: Parking Facing Downhill — With a Curb
Situation
Your car is pointed downhill. There is a curb to your right.
Think It Through
If your brakes fail, the car rolls forward down the hill.
You want the front wheels to immediately make contact with the curb so the car can't go far. Turn the wheels toward the curb (right, in this case). As the car begins to move forward, the front wheels will dig into the curb and stop it.
✅ Rule: Turn wheels TOWARD the curb
As the car drifts forward, the front wheels hit the curb and stop the car from rolling into the intersection.
Scenario 3: Parking on a Hill — No Curb
Situation
You're parked on a hill — either direction — but there is no curb. Just a shoulder or open road edge.
Think It Through
Without a curb, there's nothing to catch the wheels. So the strategy changes: instead of steering toward the curb to stop the car, you want the car to roll off the road safely (toward the edge or shoulder) rather than into traffic.
In both uphill and downhill situations with no curb: turn your wheels toward the edge of the road (to the right). If the car rolls, it will roll toward the shoulder — not into oncoming traffic.
✅ Rule: No curb — always turn wheels toward the edge of the road (right)
Whether facing uphill or downhill, point wheels toward the shoulder so a rolling car moves off the road, not into traffic.
The Complete Summary — At a Glance
| Situation | Wheel Direction | Why |
|---|---|---|
| Uphill + curb | Away from curb (left) | Rolling car's front wheels catch curb |
| Downhill + curb | Toward curb (right) | Rolling car immediately hits curb |
| Uphill + no curb | Toward edge (right) | Car rolls off road, not into traffic |
| Downhill + no curb | Toward edge (right) | Car rolls off road, not into traffic |
The Easy Way to Remember
- 🔵 Curb present? Ask: "Which way does the car need to roll to hit the curb?" — turn wheels that way.
- 🟡 No curb? Always turn toward the edge of the road (right shoulder).
Other Important Parking Rules on Hills
Always Use Your Parking Brake
Turning your wheels is a backup safety measure — your parking brake is the primary one. Always engage it when parking on any slope, no matter how gentle.
Leave the Car in Gear (Manual Transmission)
If you drive a manual (stick shift) car, leave it in gear after parking on a hill:
- Facing uphill: Leave in first gear
- Facing downhill: Leave in reverse
This way, if the parking brake fails, the engine compression acts as an additional brake.
Park Within 18 Inches of the Curb
Most states require you to park within 18 inches of the curb. Parking too far from the curb can block traffic and earn you a ticket — and a wrong answer on the permit test.
Common Mistakes on the DMV Test
- Confusing uphill and downhill directions under pressure
- Forgetting that "no curb" always means turn right
- Not considering which direction the car would actually roll
The fix? Don't memorize — reason it out. Ask yourself: "If the brakes fail, where does the car go? What can stop it?"
Street Parking Rules Beyond Hills
Hill parking isn't the only thing tested. Here are a few more street parking rules that trip people up:
Fire Hydrant
Do not park within 15 feet of a fire hydrant.
Intersection
Do not park within 20–25 feet of an intersection (varies by state).
Crosswalk
Do not park in or blocking a marked crosswalk.
Driveway
Do not block a private driveway — even partially.
Double Parking
Never park beside another parked vehicle — always pull into the space, parallel to the curb.
Final Thoughts: Understanding Beats Memorizing
The drivers who struggle with hill parking rules are the ones trying to memorize a table. The ones who get it right every time are the ones who picture the scenario and ask: "If the brakes fail, where does the car go, and what stops it?"
Once that question becomes your instinct, the answer to any hill-parking question becomes obvious — curb present or not, uphill or downhill.
Apply the same thinking to your parking skills overall: understanding the why always beats memorizing the what.
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