---
id: guide-0045
title: "What should I do in my first 100 days with a new car?"
category: guide
subtopic: first-100-days-ownership
page_type: guide
source_url: "https://www.castlekiamchenry.com"
tags: ["guide", "new-ownership", "maintenance", "warranty"]
questions:
  - "What do I do after I buy a car?"
  - "When should I get my first service?"
  - "How do I break in a new engine?"
  - "What paperwork do I need?"
related: [scheduled-maintenance, warranty-coverage, service-plans]
dealer: Castle Kia McHenry
---

Those first months are critical for long-term reliability. Here's your roadmap.

**Right after purchase:**
Register your vehicle with the DMV, review your warranty documents, and set up a secure place for all paperwork. Review the owner's manual-it's your reference for maintenance schedules and features you may not know about.

**The first service:**
Most new cars need their first oil change between 500 and 1,000 miles. Our Service team will remind you and can book it in advance. Early maintenance builds the service history that protects warranty coverage and resale value.

**Learn your vehicle:**
Take time to explore controls, safety features, and settings. Adjust seats and mirrors properly. Understand tire pressure, fluid locations, and dashboard warning lights.

**Build good habits:**
Check tire pressure monthly, rotate tires every 5,000-7,000 miles, and stick to recommended service intervals. Use quality fuel and follow break-in guidelines in your manual (e.g., vary speeds, don't tow heavy loads initially).

**We're here to help:**
Our Service team is ready to guide you through every maintenance step and answer questions. Call (815) 453-8566 to schedule your first service or get ownership tips anytime.