Three taps — what's lit, what the car is doing, anything else — and you get the same first-pass call a technician makes on the phone: park it, drive it gently today, or book it this week. No fear-baiting: an amber-but-drivable answer stays amber-but-drivable.
Red lamp = stop now · Amber lamp = safety net off, book soon · This is triage, not a diagnosis
Tap every lamp that's lit. None lit? Skip to question two.
Pick the closest description of how it drives or starts.
A noise, a smell, a quote you don't trust. Plain words are fine — this text rides along to the booking.
No — it is a triage. It sorts your situation into stop-now, drivable-today, or book-soon using the same conventions your dashboard itself uses (red lamp = park it, amber lamp = a safety net is off). A diagnosis names the failed part with evidence: live data, freeze frames, pressure and circuit tests. That is the $150 flat visit.
Because several systems disable themselves without changing how the car feels: the airbag module turns the bags off when it cannot trust them, the alternator keeps the car running off the battery for a while before everything stalls at once, and an oil-pressure lamp can look and sound normal right up until the bearings do not. ‘It drives fine’ is exactly why these exist.
Red means stop as soon as it is safe — the system behind it can destroy the engine or cost you control of the car right now. Amber or yellow means a fault is logged or a safety net is switched off, and you have time to book a scan. Green and blue lamps are information, not warnings. The checker applies that logic per light, then layers on what the car is actually doing.
An all-module scan at your driveway (not just the engine — ABS, SRS, body, transmission modules too), live-data analysis, the confirming test for the fault, and a written report naming the root cause and the repair path. The $35 trip fee within 25 miles of Canyon Lake rides on top, stated before we show up. If we can't find the root cause, you don't pay the diagnostic fee. Period.
Type the quote into question three — the verdict links you to the honest next step, which is usually the second-opinion visit: we review the other shop’s diagnosis and spot-check the claimed fault on the car for a flat $95.