California DMV Permit Test (Class C)Vehicle Operation and MaintenanceMedium
During a pre-trip inspection, you notice that one of your vehicle's turn signal bulbs is not illuminating. What action should you take before driving?
- AReplace the faulty bulb immediately.
- BDrive carefully and use hand signals for turns on that side.
- CPlan to drive only in areas where turns are not required.
- DUse the hazard lights when making a turn on the affected side.
Show answer & explanationAnswer & explanation
Correct answer: A. Replace the faulty bulb immediately.
A non-functioning turn signal is a safety hazard as it prevents you from effectively communicating your intentions to other drivers, increasing the risk of a collision. Replacing the bulb immediately is the appropriate action to ensure safe and legal operation of the vehicle.
Why the other options are wrong
- B. While hand signals are an option, they are less visible and less effective than electric turn signals, especially at night or in adverse weather. It's not a substitute for a functioning light.
- C. It is impractical and unsafe to restrict driving based on a faulty turn signal.
- D. Hazard lights flash both sides simultaneously, which can confuse other drivers about your intended turn direction and is not a substitute for a specific turn signal.
Non-Functioning Turn Signal
A non-working turn signal is a safety hazard and illegal. It must be repaired (e.g., bulb replaced) before driving to ensure proper communication with other road users.
- Prevents clear communication of intentions.
- Increases collision risk.
- Requires immediate repair/replacement.
Memory trick: No blink, no drive, fix the light to stay alive.