Diagnostics
Decode warning lights, noises, and symptoms before you reach the shop.
AI-Powered Auto Education
Big M Mechanic AI Academy
Helping You Understand Your Vehicle—Powered by AI.
Ask the AI Mechanic
“Hey, I’m Big M. Tell me what your vehicle is doing, and I’ll help you understand the next step.”
Diagnostic session
Found on the driver-side dash, door jamb sticker, or your insurance card.
Hey, I'm Big M. Tell me what your vehicle is doing, and I'll help you understand the next step.
Sounds, smells, warning lights, when it happens — give me what you've got and I'll ask a few targeted questions before giving you a ranked diagnosis, cost range, safety call, and next steps.
To start: what year, make, model, and engine is the vehicle, and what is it doing?
Educational only — not a replacement for a licensed technician
What You Get
Maintenance Tips
Simple schedules and checklists that keep your vehicle on the road longer.
Financing Options
Understand repair financing so a big job never catches you off guard.
Repair Guides
Step-by-step walkthroughs written for real driveways and real tools.
Video Library
Watch the fix before you attempt it, with clear shop-floor footage.
Garage Membership
Every guide. Unlimited AI. One monthly plan.
Members get the whole library plus unlimited diagnostics from the AI Mechanic — instead of buying guides one at a time.
- Every repair guide PDF — free to download
- Unlimited AI Mechanic diagnostics
- Unlimited printable diagnostic reports
- New guides included the day they launch
- Cancel anytime — access runs to the end of your paid period
$9.99/ month
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Digital Store
Downloadable repair guides written by working technicians. Instant PDF delivery after checkout.
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Video Library
Educational automotive videos from the Big M garage.
8:42
How to Read a Check Engine Code in 5 Minutes
Video embed coming soon
14:20
Brake Pad Replacement — Start to Finish
Video embed coming soon
6:15
Why Your Car Overheats (And What to Do)
Video embed coming soon
Need hands on it?
Book service with Big M Tires and let a certified technician finish the job.