(a) Except as provided in subdivision (b), whenever reckless driving of a vehicle proximately causes bodily injury to a person other than the driver, the person driving the vehicle shall, upon conviction thereof, be punished by imprisonment in the county jail for not less than 30 days nor more than six months or by a fine of not less than two hundred twenty dollars ($220) nor more than one thousand dollars ($1,000), or by both the fine and imprisonment.
(b) A person convicted of reckless driving that proximately causes great bodily injury, as defined in Section 12022.7 of the Penal Code, to a person other than the driver, who previously has been convicted of a violation of Section 23103, 23104, 23105, 23109, 23109.1, 23152, or 23153, shall be punished by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code, by imprisonment in the county jail for not less than 30 days nor more than six months or by a fine of not less than two hundred twenty dollars ($220) nor more than one thousand dollars ($1,000) or by both the fine and imprisonment.