The Toyota Innova multi-utility vehicle (MUV) was slightly damaged and Kejriwal was shifted to another car in his cavalcade and continued his journey towards Amritsar.
No one was injured in the accident.
A police officer said that a car in the AAP leader's cavalcade hit his vehicle while trying to avoid a three-wheeler on the highway. The cavalcade was descending from a flyover near the Punjab Armed Police (PAP) campus on the outskirts of Jalandhar.
Kejriwal was travelling from Ludhiana to Amritsar.
The AAP leader started his four-day political tour of Punjab on Thursday at a time when the party's state unit and its leadership is facing an internal crisis.