Dashboard Warning Lights Guide | Interactive Car Warning Light Encyclopedia, EV Tesla BYD Symbols, Printable Checklist & Tracker

A light comes on. What does it mean, and should you stop?

This toolkit answers that in seconds. Its centrepiece is an interactive warning light encyclopedia. Choose your vehicle type, type what you see (“oil can”, “turtle”, “exclamation in a circle”) or tap its colour and shape, and you get:

• what the light means
• how urgent it is
• exactly what to do next

It works offline on your computer or phone. There’s no app to install, no account and no subscription.

WHAT’S INCLUDED

• Interactive Warning Light Guide (HTML, works offline). 63 lights with original symbol illustrations, for petrol, diesel, hybrid, plug-in hybrid and electric vehicles. Every light shows its urgency in words (Stop safely / Caution / Information), likely causes, step-by-step actions, flashing vs steady, when to get professional help, and what manufacturers say, with sources. It also has a stop-or-drive check, an emergency guide, EV high-voltage safety, brand pages (Tesla, BYD, Hyundai/Kia, Nissan, VW, Toyota, Honda, Mazda), checklists, saved lights, a printable report for your mechanic, and light and dark modes.
• Dashboard Warning Lights Explained: an 81-page illustrated PDF ebook in a friendly technician’s voice, with scenarios, decision trees and a quick-reference chart.
• Vehicle Warning & Maintenance Tracker (Excel): incident log with a drop-down of all 63 lights, plus repairs, maintenance, follow-up reminders and an automatic dashboard.
• Quick Reference (7 printable pages), including “Red Warning Lights: When to Stop”.
• EV Warning Lights Guide (6 pages).
• Used-Car Dashboard Inspection Checklist (2 printable pages).
• User Guide & References.

PERFECT FOR new drivers, families, EV and hybrid owners, used-car buyers, and anyone who wants to describe a problem clearly to a mechanic.

RESEARCHED, NOT INVENTED: everything was checked in October 2026 against manufacturers’ owner’s manuals, ISO 2575 colour conventions, National Highways, the RAC and NHTSA.

COMPATIBILITY: the guide works in any modern browser on Windows, Mac, iPhone, iPad or Android; testing was in Chrome/Edge. The PDFs open in any PDF reader. The tracker works in Excel 2016+, Excel for the web or LibreOffice, with no macros.

PLEASE NOTE: this is an educational guide and does not replace your owner’s manual. It doesn’t connect to your car, read fault codes or diagnose problems. Symbols vary by make, model and year, and the drawings are original illustrations. No guide can guarantee a safe-to-drive decision. It is not affiliated with any vehicle manufacturer. This is an instant digital download.