A flat tire on I-480 or I-90 is a different situation than one in a parking lot — higher speeds, less room to maneuver, and less time to react. Here’s how to handle it safely.
Feel it happen? Don’t slam the brakes
A sudden blowout pulls the car hard to one side. Resist the instinct to brake hard — ease off the gas, grip the wheel firmly, and let the car slow gradually while steering straight before braking gently once you’ve regained control.
Get as far right as the road allows
Signal, and move fully onto the shoulder — past the rumble strips if there’s room. If you can safely coast to the next exit on a damaged-but-rolling tire, that’s often safer than stopping on a narrow shoulder, even if it’s harder on the wheel.
Hazards on immediately
The moment you’re stopped, hazards on — this is the single fastest thing you can do to make yourself visible to approaching traffic.
Stay inside the vehicle
This is the most important highway-specific rule: don’t get out to inspect the tire or attempt a change yourself on a live shoulder. Highway shoulders are struck by vehicles more often than most drivers assume, and a jack under a car a few feet from 70-mph traffic is a genuinely dangerous place to be. Stay belted inside and call for help — see our full breakdown in what to do in the first 5 minutes of any breakdown.
Give an exact location
Highway and direction, plus the nearest mile marker or exit number — that’s the fastest way to get a technician to you specifically on a road where “somewhere on I-480” could mean a fifteen-mile stretch.
If you must exit the vehicle
Only if the car is at real risk (smoke, fire) — exit from the side away from traffic and get well clear of both the vehicle and the roadway, behind a guardrail if one is present.
Blowout vs. slow leak: how to tell the difference
A blowout is sudden and dramatic — a loud bang, immediate pulling to one side, and an unmistakable change in how the car handles. A slow leak is subtler: the car may pull gently to one side over several minutes, or a tire pressure warning light comes on before you feel anything. If you catch a slow leak early, you often have more time and options to reach a safer spot than a full exit ramp — but treat both the same way once you notice them: signal, ease off the gas, and move right.
What we bring to a highway call specifically
Highway tire changes call for more than just a jack and a lug wrench. We position our vehicle to create a physical buffer between you and traffic, use high-visibility equipment so approaching drivers see us well in advance, and work quickly and deliberately since every extra minute on a live shoulder is added exposure. If the tire is repairable rather than needing a full spare swap, we’ll tell you that too — see our flat tire change service for the full breakdown.
Why we don’t recommend DIY highway tire changes
Even experienced drivers underestimate how little separation a standard shoulder gives from live traffic. A professional roadside technician works with proper positioning, visibility equipment, and experience reading traffic patterns. If you’re capable of changing a tire yourself in a parking lot or driveway, that’s a different, much lower-risk situation — the highway shoulder specifically is where we’d urge you to wait for help rather than get out.
After the flat: don’t ignore why it happened
A single pothole strike is usually just bad luck. But repeated flats, especially on the same tire or side of the car, can point to an alignment issue or worn suspension component worth having checked at a shop — the roadside fix gets you moving again, but it’s not always the whole story. For the full picture on roadside coverage beyond tires, see our complete roadside assistance guide.