Change a flat tire on the side of the road
The difference between a 20-minute shoulder stop and an hour on the phone with a tow company is knowing where the spare and jack live before you need them.
What you'll learn
- Why the traffic-side of a vehicle is the dangerous side for a DIY change
- Where the jack point is on most modern vehicles (check the owner's manual)
- The correct lug-nut loosening pattern (star/cross, not circle)
- When to call for a tow instead - highway shoulders, curbs without room, or damaged sidewalls
Step by step
- Pull off into a safe flat spot - away from traffic, off a shoulder if possible.
- Set the parking brake. Turn on hazard lights. Put the transmission in park (or 1st gear on manual).
- Loosen the lug nuts half a turn each before jacking - while the tire is still on the ground.
- Position the jack at the factory jack point under the frame. Raise until the tire is 1-2 inches off the ground.
- Remove the lugs, swap the flat for the spare, hand-tighten lugs in a star pattern.
- Lower the car fully. Torque the lugs in the same star pattern.
- Drive directly to a tire shop. Most spares are rated for 50 mph max, 70 mile range.
If you are on the shoulder of I-93, the O'Neill Tunnel, the Mass Pike, Route 128 or a bridge approach, call for a tow to a safe lot instead. Greater Boston carries some of the heaviest urban traffic in the country and in places there is no usable shoulder at all, so a roadside tire change there is genuinely dangerous. MassDOT and the State Police patrol the metro highways to clear hazards and protect responders, and because they patrol constantly they are often first on scene. They do not change your tire and they do not tow you.
Rather have a pro handle it?
Towing and roadside service across the Greater Boston. One local line, taking calls any hour.
Keep learning.
Jump-start a dead battery safely
Jumper cables are simple until you hook them wrong. Do it right and you'll avoid sparks, ruined electronics, and a tow you didn't need.
What to do if you slide on ice or hit a flooded street
Boston winters glaze bridges and ramps before flat streets, and a coastal storm or a king tide floods low waterfront streets faster than it looks. First step: stop making it worse.
Prepare your vehicle for a tow
A few minutes of prep before the tow truck arrives saves time, avoids damage, and makes the whole call go faster.