Your car. One continuous record.

Your car finally has a memory.

Every problem becomes a Case. New evidence can change the answer. Every repair is remembered — what worked, and what didn’t.

My Car

2016 Toyota Camry

91,250 mi · VIN on file

Open caseBraking grindNext: check the slide pins move freely

Last repairSpark plug · Aug 14

Oil duein 1,200 mi

Case updatedExample · v1

“Inner pad ~1 mm. Outer pad 3 mm.”

Sticking caliper / slidePossible → Supported

Next: check the slide pins before buying parts.

Example

01 · Your car

Everything Redline knows about this car.

Open caseBraking grindOpened Oct 2

Last repairSpark plug, cylinder 1Fixed it

Needs attentionOil changein 1,200 mi

Recalls1 model-year recallVerify status by VIN →

Live OBD · Beta

See what Redline reads from your car.

Plug a Bluetooth OBD-II adapter into the port under the dash. Redline reads the check engine light, trouble codes, readiness and live data, runs the one test that tells you the most, and updates your Case.

Explore Live OBD demo Connect my car

Beta. Real-car validation is ongoing; availability and supported data vary by vehicle and adapter. The demo needs no adapter.

Demo data · not from your vehicle

02 · Active case

One problem, solved over time.

01ProblemGrinding when braking
02 · You are hereEvidencePads measured · 2 supported
03DecisionCheck first, then approve
04RepairNot yet
05OutcomeDid it fix it?

03 · Evidence changes the answer

Report what you found. Watch the Case update.

Redline only says what the evidence from your car supports, and says when it doesn’t know yet. Reporting a result is always free.

You: “Inner pad is down to 1 mm. Outer pad is 3 mm.”

Case updatedv0 → v1

Worn brake padsPossible → Supported

Sticking caliper / slidePossible → Supported

Scored rotorsPossible · needs a rotor check

Uneven inner/outer pad wear supports a binding caliper/slide mechanism. Check the slide pins first, before approving parts.

Example

04 · History

Redline remembers what fixed it — and what didn’t.

Example history

Oct 6Measured pads — inner 1 mm, outer 3 mmTest result
Aug 14Replaced plug, cylinder 1Fixed it
Jul 25Replaced coil, cylinder 1Didn’t fix it
Jun 02Oil change · 85,400 miMaintenance

05 · Before you approve a repair

Got a quote? Redline checks it against your car’s evidence.

You get a verdict, the reason for it, and the test that would settle it — so you can ask the shop for it by name.

Ask for this evidence before approving

“Can you show me the downstream O2 sensor reading on live data?”

Example

Fair questions.

Do I need a code reader?: No. Describe it in your own words. A scan adds evidence when you have one.
Will it say my shop is wrong?: Only when the evidence doesn’t support the repair. When it does, Redline says so.
Does it replace a mechanic?: No. It helps you ask the right questions. A qualified technician should confirm any repair.
What does it cost?: Your first diagnosis is free, with no account. A free account includes 5 diagnoses a month; paid plans add more. See pricing

Start your car’s record today.

Redline gives evidence-based guidance, not a guarantee. Have a qualified technician confirm before any repair.