Every car has them. Every driver needs to manage them. Yet blind spots remain one of the most underestimated hazards for new drivers in the United States. According to the NHTSA, hundreds of thousands of crashes each year are linked to blind-spot failures — and a large proportion involve recently licensed drivers. Understanding your blind spots isn't just a test-day requirement; it's a genuine lifesaving skill.
What Exactly Is a Blind Spot?
A blind spot is any area around your vehicle that cannot be seen using your mirrors alone. Even with your driver's side mirror, passenger's side mirror, and rearview mirror perfectly adjusted, there are zones — typically on either rear quarter of the vehicle — where another car, cyclist, or pedestrian can completely disappear from view. The larger the vehicle, the larger the blind spots.
Many new drivers assume that mirrors cover everything. They don't. A car traveling in the lane next to you can slide into a blind spot in a matter of seconds, especially at highway speeds.
How to Set Your Mirrors Correctly
Before you can manage blind spots, your mirrors need to be optimally adjusted. Here's a quick guide:
- Rearview mirror: Center it so you can see the full rear window without moving your head.
- Driver's side mirror: Lean your head toward the window, then adjust the mirror until you can just barely see the side of your car. From your normal driving position, you should not see your own vehicle.
- Passenger's side mirror: Lean toward the center console and repeat the same process. Again, your car should barely be visible from your normal seating position.
This method, recommended by the Society of Automotive Engineers (SAE), significantly reduces — but does not eliminate — blind spots. A physical shoulder check is still essential.
The Shoulder Check: Your Secret Weapon
The shoulder check (also called a head check) is the single most important habit you can build as a new driver. Before changing lanes, merging, or pulling away from a curb, you must briefly turn your head to look directly into the blind spot zone on the side you're moving toward.
On your road test, DMV examiners are specifically watching for this movement. A smooth, deliberate head turn signals that you're aware of your surroundings. Skipping it — even if no car is actually there — is often marked as a fault.
Practice the shoulder check until it becomes automatic. It should take no more than one to two seconds and should always be combined with checking your mirrors before you look over your shoulder.
When You Must Always Check Your Blind Spot
- Changing lanes on a multi-lane road or highway
- Merging onto a freeway or interstate
- Pulling away from a parked position at the curb
- Making a wide turn that crosses lane lines
- Reversing out of a parking space or driveway
Modern Tech Helps — But Don't Rely on It
Many newer vehicles come equipped with Blind Spot Monitoring (BSM) systems that flash a light in or near your mirror when a vehicle enters your blind zone. This technology is genuinely useful, but it's not a substitute for the shoulder check. Sensors can miss cyclists, motorcycles, and pedestrians. On your road test, your examiner expects to see a physical check regardless of what technology your car has.
Build the Habit Before Test Day
The best way to make blind-spot checks feel natural is to practice them on real roads, in real traffic, long before your road test date. Apps like SteerClear let you practice on actual DMV test routes with live scoring, so you can build muscle memory for the exact maneuvers — including lane changes — that your examiner will be grading. The more you rehearse the full sequence (mirrors, signal, shoulder check, move), the more confident and automatic it becomes.
Blind spots won't go away, but with the right habits they become manageable. Master the shoulder check now, and you'll carry that skill with you for every mile you drive — long after you've passed your road test.