14,027 complaints contain the phrase pulled over. Their crash rate is 1.2%, against 5.8% across the record.
These are the incidents that ended with a car on the verge and an annoyed owner, and they are the largest documented set of vehicle failures handled correctly.
What the successful cases have in common
Read in bulk, they follow the same sequence. The driver noticed something, decided it mattered, and stopped — usually within a mile, often before knowing what was wrong.
The faults involved are the ones that remove capability rather than add motion: loss of power, a warning light with a temperature change, steering going heavy, a noise under braking. The dangerous failures are the ones that add movement, and those happen at low speed where there is no time to decide anything.
The other consistency is that nobody in these accounts tried to reach a destination. The complaints that end badly frequently contain a version of "I thought I could make it home".
The three that mean stop now
Most faults tolerate a careful few miles to somewhere sensible. Three do not.
A rising temperature gauge, because one overheating complaint in seventeen ends with the car on fire and the damage from continuing is both mechanical and immediate.
A burning or hot plastic smell, which precedes an actual fire far more often than any other symptom.
And a flashing check engine light, which indicates an active misfire capable of destroying the catalytic converter within minutes — different from a steady light, which means a stored fault that can wait.
Where to stop
The 5,044 complaints describing a car stopped in a live lane are the uncomfortable part of this dataset. Momentum is worth using: a car losing power still has enough to reach a verge, and getting there is easier at 40 mph than after coasting to a halt.
Once stopped, the sequence is hazard lights, everyone out on the side away from traffic, and behind a barrier if one exists. The car is replaceable and standing beside it on a hard shoulder is the most dangerous part of the entire event.
Afterwards
Write down what happened while it is fresh — the speed, the temperature, whether the car was hot or cold, what the dashboard did. That detail is what makes the difference between a fault that cannot be reproduced and one that gets fixed.
And check whether a recall covers it. The check is free and so is the repair if a campaign applies.
Frequently asked questions
How often does a fault while driving lead to a crash?
Less often than expected. Of 14,027 complaints describing the driver pulling over, 1.2% involved a collision against 5.8% across all complaints. Faults that remove capability give drivers time to react; the dangerous ones add unrequested movement at low speed.
Which symptoms mean stopping immediately?
A rising temperature gauge, since one overheating complaint in seventeen ends in fire; a burning or hot plastic smell, which precedes fire more than any other symptom; and a flashing check engine light, which indicates an active misfire that can destroy the catalytic converter within minutes.
What should you do after stopping?
Hazard lights, everyone out on the side away from traffic and behind a barrier if there is one — standing beside the car is the most dangerous part. Then write down the speed, temperature, and dashboard behaviour while it is fresh, since that detail is what makes the fault reproducible.
Denis Kataev is a serial solopreneur and the founder of ForCar. With 15+ years in software engineering and 10 years in SEO, he builds data-driven products end to end — backed by a sharp eye for design. At ForCar he mines proprietary vehicle datasets, turning raw numbers into buying advice you can actually trust.
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