How do I add an additional driver to my rental car?

The first step is to give your AI agent trustworthy information to answer questions about additional drivers. Inside your Chatref dashboard, head to the knowledge base and upload your company’s extra driver rental policy documents, terms and conditions, and any age restriction or fee tables. You can use PDFs, URLs, or plain text. The RAG‑grounded agent will only answer from these documents, so there’s no guesswork and no hallucinated fees. Once the knowledge base is trained, every query about adding a driver pulls straight from your real policy.

With your documents live, create a dedicated AI agent for driver‑related inquiries. In the agent settings, select only the uploaded policy documents as its knowledge source. Customize the agent’s greeting and tone to match your brand. Then test how it handles common questions—for example, “How much does it cost to add an extra driver?” or “What is the minimum age for an additional driver?” Because the agent is grounded in your actual policy, it will respond with the exact fees, age limits, and steps your customers need.

Answering questions is just the start. Use Chatref’s custom actions to turn the conversation into a finished workflow. Build an action that:

1. Collects the additional driver’s full name and driver’s license number.
2. Verifies the driver meets your age criteria (pulled from your knowledge base).
3. Calculates the extra charge based on rental length and fee tables.
4. Triggers a payment or a reservation update via your internal system.

Custom actions let the AI agent handle the entire add‑driver process inside the chat, so customers never need to call or fill a separate form. All collected data can be passed to your rental management tool or sent to your shared inbox for review.

Once your agent is trained and actions are set, embed the Chatref widget on your booking confirmation page, customer portal, or mobile app. Before going live, activate a private test session and walk through the full flow: ask about adding a driver, verify the policy answer, submit a mock driver license, and confirm the fee calculation and system update. Check that the conversation handoff to a human team member works if a case falls outside the defined policy. After testing, activate the widget for real visitors.

What is the age requirement for additional drivers?

Most car rental policies require additional drivers to be at least 25 years old, though some companies allow drivers as young as 21 with an underage surcharge. The Chatref agent will give your customers the exact age rule stored in your uploaded policy documents, so there’s no confusion.

How much does it cost to add an extra driver?

The fee varies by location and rental company, typically ranging from $10 to $15 per day per additional driver. When your customer asks, the AI agent retrieves the precise amount from your knowledge base and can even calculate the total cost for the rental period using custom actions.

Can I add an additional driver after booking?

Yes. Customers can add an additional driver anytime before the rental pickup, provided the driver meets the age and license requirements. Your Chatref agent can guide them through the update instantly, and the custom action will apply the change to the reservation if your system supports it.

What documents are needed for an additional driver?

The additional driver must present a valid driver’s license issued at least one year prior. Some locations also require a second form of ID or a major credit card. The AI agent can prompt for exactly the documents listed in your policy and validate the input through custom actions before finalizing the addition.