When you parallel park, use the turn signal that points toward the space: right signal for a space along the right curb, left signal for a space along the left curb on a one-way street. The signal matches the direction you’re moving across the roadway, and it needs to be on before you start slowing down, not after you’ve stopped next to the gap.
Match the Signal to the Side of the Road
Most parallel parking happens on the right, so most of the time you’ll use your right turn signal. One-way streets often allow parking on either side, and if you’re pulling into a space on the left, you signal left. The rule is simple: the signal matches the side of the road where the space is.
Think of it less as a “parking signal” and more as what it actually is. You’re telling traffic you’re about to move laterally across part of the roadway, brake, and stop in a travel lane before reversing. Left-side parking on a one-way street can feel odd the first time if you’ve only ever signaled right, but the mechanics mirror everything. You pull alongside the car ahead of the space, then reverse in while steering toward the curb. The signal follows the direction of movement.
When to Turn the Signal On
Activate the signal before you start slowing down. The point is to warn trailing drivers that something unusual is coming: you’re going to brake, stop in a travel lane, and reverse. If the first clue they get is your brake lights, you’ve already created a hazard.
The Uniform Vehicle Code, which forms the basis of traffic law in most states, requires a turn signal to be given “continuously during not less than the last 100 feet traveled by the vehicle before turning.” At 30 mph, 100 feet takes about two seconds to cover, so this is really a minimum. Signaling earlier gives everyone more breathing room, especially on busy streets where drivers behind you may need to change lanes.
Keep the signal on throughout the maneuver. Once you’ve pulled even with the car ahead of the space and start reversing, the blinker continues to tell approaching drivers what you’re doing. Don’t shut it off until you’re settled in the space.
Why Hazard Lights Are Not a Substitute
Some drivers flip on their hazard flashers instead of a directional signal, thinking it makes them more visible. The problem is that hazards don’t tell anyone which direction you’re going. A driver approaching from behind sees flashing lights on both sides and has to guess whether you’re pulling right, pulling left, or sitting there with a mechanical problem. A directional signal removes that ambiguity.
There’s a legal issue, too. A number of states prohibit using hazard lights while a vehicle is in motion, and some treat it as a moving violation. Even where it isn’t explicitly banned, hazard lights are intended for breakdowns and emergency stops, not routine parking. Stick with the turn signal.
What the Law Requires
Every state requires drivers to signal before turning or moving laterally on a roadway, and parallel parking falls squarely under those requirements. You’re moving your vehicle from a travel lane to the curb, and that lateral movement is exactly what other drivers need warning about. The Uniform Vehicle Code makes this explicit: no person may move a vehicle right or left on a roadway without giving an appropriate signal.
Failing to signal is a moving violation. Fines typically range from about $25 to over $100 for a first offense, and they can climb higher with court fees and surcharges depending on where you are. In many states, a signal violation also adds points to your driving record. Enough points and you face higher insurance premiums, mandatory driving courses, or license suspension.
The bigger risk usually isn’t the fine. It’s the accident. A driver behind you who doesn’t realize you’re about to stop and reverse has very little time to react, and rear-end collisions during parking maneuvers happen precisely because the parking driver’s intentions were unclear.
Fault When Something Goes Wrong
If you hit another vehicle while backing into a parallel parking space, you’ll almost certainly be found at fault. The driver performing the maneuver has a duty to make sure the path is clear before reversing. Backup cameras and sensors help, but they don’t shift legal responsibility.
Fault gets murkier in some situations. If a passing driver was speeding or distracted and rear-ended you while you were signaling and slowly maneuvering, some or all of the fault could shift to them. Most states use comparative negligence, meaning fault can be split between both drivers based on each one’s share of the blame, and any compensation is reduced by your percentage of fault.
This is where the signal does double duty. A working turn signal, activated well before the maneuver, is evidence that you communicated your intentions. If a collision happens anyway, that signal strengthens your position that the other driver had notice and failed to react.