No person shall stop or suddenly decrease the speed of a vehicle on a highway without first giving an appropriate signal in the manner provided in this chapter to the driver of any vehicle immediately to the rear when there is opportunity to give the signal.
Cal. Veh. Code § 22109
Turning and Stopping and Turning Signals
Applied in 6 court decisions — leading case 212 Cal. App. 2d 440 - Kramer v. Barnes (1963)
Most recently applied in 10 Cal. App. 3d 836 - Kimball v. Whetzel (August 1970)
Enacted by Stats. 1959, Ch. 3.
How often courts cite this section
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.