Police are appealing for witnesses following a three car collision in Courtauld Road at the Repton Close Junction, Basildon, just before 10am on Thursday April 4.
The vehicles involved were a Ford Fusion, in which a two-year-old boy received minor injuries, a Renault Scenic and a Mercedes tipper lorry.
The boy, from Basildon, was taken to Basildon Hospital for treatment.
PC Tim Hardy-Wallace of Laindon Traffic Unit said: "We would like more information surrounding the circumstances of this incident. If you can help please contact me via Essex Police 101 ext 481306."