For independent EV repair shops
EV repair shop software for the customer watching their app.
Independent Tesla work has a problem the service centers do not: your customer chose you over the mothership and is now refreshing their phone to see whether that was a mistake. GuestLot makes the diagnostic time legible — a time-boxed window, road tests that are logged instead of alarming, and a receipt that lands before the anxious text does.
Volt Works EV Service
SNAPSHOT CLOSED — THU 16:18
11.7 miles, two road tests, both disclosed. The number is not the problem — the unexplained number is.
Wednesday, intermittent fault
Diagnostic time looks like joyriding from the passenger seat of a phone.
A Model 3 arrives with an intermittent drive unit noise that only shows up above 40 mph on a rough surface. Reproducing it takes two road tests on two different roads, separated by four hours of teardown and a charge from 12% so the second test is even possible. Total: about twelve miles and a trip past a Supercharger you did not use.
Meanwhile the owner is watching all of it in their app. They see the car move, twice, to places that are not your address. They do not know what a verification drive is. By the time they call, they have already decided how they feel, and you are starting the conversation from behind.
Independents live on this trust margin. A service center gets the benefit of the doubt because it is Tesla; you get a Google review. The fix is not a better explanation at pickup — it is a record that arrives with the same timestamps their app is showing them.
ON LOT
counts + timestamps
OFF LOT
after hours → GM text
Off-lot during your hours inside the road test fence is a line in the log. Off-lot at 1 AM is a text message. Same event type, different meaning, and the difference is a timestamp.
Defaults for mechanical work
Built for shops that legitimately have to drive the car.
A mechanical ticket is the only job type besides collision where extended movement is normal. The thresholds reflect that instead of fighting it.
- A 20-mile odometer threshold — enough for two verification drives and a charge run, tight enough that a weekend of personal use is unmissable.
- Lot and road test geofences. Movement inside them during your hours is logged, not escalated.
- Supercharger sessions alert unless the GM marks the visit as an authorized top-off, because sometimes you genuinely do need charge to finish a diagnosis.
- Service Mode checklist on Pro, plus an alert if the car exits Service Mode mid-diagnosis.
- No remote Service Mode command exists. A tech enters it at the car’s touchscreen — see the limits.
Shipped defaults for a mechanical ticket. Road test is part of the policy, not an exception to it.
Independent versus service center
You are competing on trust and turnaround.
The service center wins on parts access and loses on wait times. Every advantage you have is about being easier to deal with, and custody paperwork is a cheap place to be dramatically easier.
- Access comes from the owner, not from a certification program. Any independent shop can check a Tesla in.
- The owner never installs anything. The authorization is in the Tesla app they already have, and the receipt is a link.
- A car dropped off before you open is covered from the minute it lands, if you pre-authorize the appointment — see how it works.
- Nervous first-time customers get a page written for them instead of a speech from your service writer.
- No live map, so you never have to explain to a customer that you were watching them.
If it goes wrong
A shop holding a car is the party who has to show what happened.
Independents carry the same bailee responsibility as a franchise dealer with a legal department. A closed, timestamped, unedited record — check-in odometer, every exit, every charge session, access ended at — is what turns a dispute into paperwork. Start with garage keepers liability and customer car damaged at a shop. None of it is legal advice, and none of it prevents anything — it documents.
Questions
From independent EV shops
My customers watch their car in the Tesla app all day. Does this help?
It is the main reason independent shops adopt it. The owner already sees every movement in their own app, so the question is whether your version of events arrives first. GuestLot texts them a receipt at hand-back with miles, exits, and the exact time your access ended, which turns a suspicious notification into a footnote.
Does a diagnostic road test trip an alert?
No. A mechanical ticket ships with a 20-mile odometer threshold and a road test geofence next to your lot, so verification drives are logged as ordinary events rather than escalations. After-hours exits and drift past the threshold are what raise an alert.
We are not a Tesla-authorized shop. Does that matter here?
Not to GuestLot. Access comes from the owner authorizing a third-party app on their own vehicle, not from any Tesla program or certification. Any independent shop can check a car in, and the honest limits on what the Fleet API allows apply to authorized and independent shops alike.
Keep reading
For collision shops
Weeks-long ROs, calibration, and insurer communication.
Tesla Fleet API for shops
What an independent shop can and cannot get from the API.
vs Tessie
Owner telematics next to shop custody. Different jobs entirely.
For Tesla owners
Send this to the customer who watches the app all day.
Pricing
Standard $179, Pro $349, per location per month.
Answers
The short-form questions owners bring to your counter.
Make the diagnostic time legible.
Fourteen days, no card. Run your next intermittent-fault ticket on it and let the receipt do the explaining.