| Flashing check engine light or engine shaking |
A possible active misfire involving ignition, fuel,
electrical, or engine-mechanical conditions.
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Pull over safely. If flashing or rough running continues,
shut down and arrange towing or professional guidance.
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| Steady check engine light |
Stored fault information, operating data, and tests
appropriate to the affected system.
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Schedule diagnosis promptly. Report any power loss,
stalling, overheating, or additional warnings.
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| Vibration during braking |
Brake condition and operation, with wheel, tire,
or suspension checks when relevant.
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Request inspection. Avoid driving if stopping ability
is reduced or the pedal feels unsafe.
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| Shuddering or delayed engagement |
Engine operation, transmission data, fluid condition,
mounts, and other possible causes.
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Note the speed and conditions. Avoid assuming that
a fluid change alone will fix the problem.
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| Coolant loss or rising temperature |
Cooling-system leaks, temperature regulation,
circulation, and possible engine damage.
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Stop safely if overheating occurs. Let the engine cool;
never remove a hot cooling-system pressure cap.
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| Clicking, slow cranking, or repeated no-starts |
Battery condition, terminals, circuits, starter
operation, and charging or discharge concerns.
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Report whether the engine cranks and whether a jump
start changes the symptom.
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