SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/cdl-turn-signal-off

After a turn, what should a CDL driver do with a turn signal that does not cancel itself?

Turn it off after the turn.

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  1. Leave it on for safety
  2. Turn it off ✔
  3. Flash it repeatedly

Why: Leaving a turn signal on confuses other drivers, who may think you plan to turn again.

Huh, didn't know that: The manual says signal continuously through the turn, then cancel the signal.

The dad joke
Why did the turn signal click? It wanted to be turned off.
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References

Answer: Turn it off. Leaving a turn signal on confuses other drivers, who may think you plan to turn again.

  1. California Commercial Driver Handbook (AAMVA model manual) www.dmv.ca.gov/portal/file/california-commercial-driver-handbook-pdf
    Do not forget to turn off your turn signal after you have turned (if you do not have self-canceling signals).
    Checked 2026-10-10.

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