The smart operating system for auto shops.
Intake, diagnostics, estimates, scheduling, payments. Every step a shop runs, in one AI system.
Replace the 12V AGM auxiliary battery, then re-register it to the BCM with Ford FDRS. Verify charging voltage at idle (13.5–14.8V) and clear P0A93, P1A0A, U0293.
Run a repair. Make the actual clicks.The full tour needs a bigger screen.
Open the job, send the quote, get approval, invoice the work, and mark it paid. About two minutes.
Here's the same open-to-paid workflow in a quick mobile preview.
Watch one job move.
From the first complaint to a paid invoice, every handoff stays attached to the car.
- Checked in · 8:32 AM2018 BMW M3Bay 2Customer concern
Brake vibration above 45 mph
- Diagnosis & quoteFront brake serviceReadyCustomer-ready quoteParts + labor$684.20✓ Plain-English explanationReady to send →
- Approved from their phoneInvoice #1048ApprovedPayment receivedCard ···· 4242✓ $684.20 paidReceipt sent automatically9:47 AM
1 vehicle · sorted by urgency
Run one repair yourself.
This is the real CarSignal workspace with a sample shop day loaded. Open the job, build the quote, send it, collect approval, invoice it, and take payment. The actual clicks, not a slideshow.
Enter your email and you play the customer too: the quote, invoice, and receipt land in your real inbox, and you approve the job from your own phone.
Every handoff stays connected.
The complaint becomes the diagnosis, the diagnosis becomes the quote, and the approved quote becomes the job—without anyone retyping the story.
One job. One signal.
Every handoff updates the floor and the customer automatically, from check-in to collected payment.
Diagnostic copilot
Reads the trouble codes, the customer's complaint, and the car's history, then recommends the repair with OEM-grounded reasoning and the exact steps to confirm it.
- Load-test the battery at rest. Expect a fail under load.
- Verify charging voltage 13.5–14.8V at idle.
- Re-register the new battery to the BCM, clear P0A93.
Customer-ready estimates
Every quote leads with a plain-English explanation, then itemizes parts and labor. The customer approves or declines each line from their phone.
Your alternator isn't charging the battery reliably. The warning light and a slow crank point to it. Replacing it now avoids a no-start and a tow.
Repair Buddy
AI chat grounded in OEM data for the car in front of you. Torque specs, fluid capacities, and component locations, on demand.
Customers always in the loop
Every job gets a live status page that updates as the work moves, with a text at each step and two-way texting back to the shop.
Your shop's software bill stays at $0.
A transparent 1% platform fee applies only to paid customer invoices — and you decide who covers it: pass it through to the customer, or absorb it as the shop. Either way it's capped every month, with the cap scaled to your shop's size. No required subscription, no locked features, and no charge on estimates or declined work.
- Who covers it
- Customer or shop
- Platform fee
- 1% per paid invoice
- Monthly cap
- Scales with shop size
Prefer a traditional flat monthly subscription? That option is available too.
The 1% rides on the customer’s invoice, so this repair costs your shop nothing. Fees are capped monthly — the cap scales with your shop’s size, and once you reach it CarSignal is free for the rest of the month.
The things shops ask first.
Straight answers. If yours isn't here, a real person will get back to you the same day.
Yes. CarSignal covers intake, diagnostics, estimates, scheduling, and payments in one place, so most shops retire two or three tools when they switch.
It reads the trouble codes, the customer's complaint, and the car's service history, then weighs them against patterns from similar jobs. You get a ranked list of likely causes, each with a confidence score and the specific test that confirms it. The tech always makes the call; the AI just gets them there faster.
Almost none. CarSignal walks new techs through the basics in a few minutes, and a built-in AI helper sits in the corner of every screen with full context of your shop and the app, ready to answer how-to questions as they come up.
Yes. Every shop runs in its own isolated workspace, data is encrypted in transit and at rest, and your customer records are never used to train shared models without your say-so.
We're two founders who grew up in mechanic shops. We've watched our families run the back office on paper, sticky notes, and a half-dozen apps that don't talk to each other.
Run your whole shop
on one signal.
See CarSignal on your own cars in a 20-minute walkthrough. No credit card, no commitment.