How do I talk to my car with Car AI?

Simply connect an OBD-II dongle to your car, open Car AI, and ask questions like 'How is my engine running?' or 'Why is my check engine light on?' The AI responds like a knowledgeable friend in plain English.

What questions can I ask my car?

You can ask about engine health ('Is my engine running well?'), fuel efficiency ('How's my gas mileage?'), maintenance needs ('When do I need an oil change?'), warning lights ('What does this warning mean?'), and performance ('How is my car performing today?').

Which cars work with Car AI?

Car AI works with virtually all vehicles manufactured after 1996 that have an OBD-II port, including gasoline, diesel, hybrid, and electric vehicles. Most cars, trucks, and SUVs are compatible.

Is Car AI free to use?

Car AI offers both free and premium tiers. The free version includes basic car conversations and diagnostics, while premium unlocks advanced AI analysis, detailed maintenance recommendations, and unlimited questions.

How accurate are the answers from my car?

Car AI uses advanced AI trained on automotive data to provide highly accurate responses. It translates complex diagnostic codes into clear, actionable advice, helping you understand exactly what your car is telling you.

Car AI

Troubleshooting

OBD‑II Trouble Codes (DTC)

Diagnostic Trouble Codes follow a standard format like P0xxx. Instead of decoding them manually, Car AI tells you what the code means, how urgent it is, and what a sensible next step looks like.

How to Read a Code

First letter indicates system: Powertrain, Chassis, Body, Unetwork.

Second digit: 0 = generic SAE, 1/2/3 = manufacturer‑specific extensions.

Remaining digits point to the specific fault (e.g., misfire, sensor range, efficiency).

Severity & Next Steps

Not all codes are equal. A flashing check‑engine often means misfires — reduce load and diagnose soon. Efficiency or evap codes may be less urgent but still worth investigating.

Car AI weighs live sensor data, freeze‑frame info, and your question context to explain risk level and what to do next — whether that’s inspecting a hose, cleaning a MAF, or visiting a mechanic.

Common Codes

P0301 — Cylinder 1 Misfire Detected

Severity: Medium

Rough idle, flashing MIL under load; plugs, coil, injector, vacuum leaks.

P0420 — Catalyst System Efficiency Below Threshold (Bank 1)

Severity: Medium

Often O2 sensor or catalytic converter; check exhaust leaks first.

P0171 — System Too Lean (Bank 1)

Severity: Medium

Vacuum leak, MAF contamination, fuel delivery issue; look at trims.

P0117 — Engine Coolant Temp Circuit Low

Severity: High

Sensor/wiring or overheating misread; verify temp vs. reality urgently.