Seguin,
where we dispatch.
Spot-On Automotive Diagnostics dispatches mobile module programming, ADAS calibration, key & immobilizer services, electrical diagnostics, and diesel work to repair shops, body shops, transmission shops, and dealerships in Seguin, Texas. Seguin is beyond our 20-mile included travel radius; a $2.50/mi round-trip charge applies. Remote J2534 programming and mail-in bench service also available.
On-site programming at your bay.
Seguin is approximately 40 miles east of our San Antonio shop along I-10. We dispatch trade-partner work to Seguin bays for ECM/PCM programming, ADAS calibration, key & immobilizer service, electrical diagnostics, and diesel work. A $2.50/mi round-trip charge applies.
Diesel is a Spot-On specialty.
ASE Master Medium/Heavy Truck and ASE L2 Electronic Diesel Engine Diagnosis Specialist credentialed. We program Cummins via INSITE/Power Spec/Calterm, Duramax via GDS2/TIS2000, and Powerstroke via FDRS. Fleet partners with recurring volume — ask about partner pricing.
When dispatch isn't the right tool.
Remote J2534 programming through your shop's pass-thru device avoids the trip charge for single-module flashes. Mail-in bench service for boot-mode reads, cloning, EEPROM repair.
Vehicle owners in Seguin
Vehicle owners in Seguin are welcome too — in-shop, by appointment, at 4715 N Stahl Park, Suite 105, San Antonio, TX 78217. We do not dispatch mobile service to vehicle owners. Seguin owners reach the shop by heading west on I-10; call ahead so the correct OEM application is loaded before you arrive.
Do you do module programming in Seguin?
Yes. Module programming leads every Seguin dispatch: ECM, PCM, TCM, BCM, ABS, SRS/airbag, instrument cluster, and body-controller programming with the OEM application, plus variant coding, cloning, virginizing, and software corrections where the platform allows it in the vehicle. Diesel programming is a large share of the Seguin work — Cummins, Duramax, and Powerstroke — alongside the passenger-car platforms. Security-gated procedures run under our NASTF VSP registration.
Is Seguin inside the 20-mile travel radius?
No. Seguin is beyond our 20-mile included travel radius; a $2.50/mi round-trip charge applies. The charge is quoted as its own line before we commit to the trip, so the total is known at booking. Fleet and shop partners in Seguin who put several vehicles on a single visit pay the trip charge once and spread it across the jobs, which is how most of our recurring Seguin work is scheduled.
Can a vehicle owner in Seguin book?
Yes. Vehicle owners in Seguin book an in-shop appointment at 4715 N Stahl Park, Suite 105, San Antonio, TX 78217. Diagnostics, module programming, key and immobilizer work, and ADAS calibration are done at the shop. We do not dispatch mobile service to vehicle owners under any circumstances; mobile dispatch is a trade lane for repair shops, body shops, transmission shops, and dealerships.
What if my shop is too far for dispatch?
When the trip charge outweighs the job, remote J2534 programming is the fallback: we run the OEM session from our shop through your J2534 pass-thru or compatible Autel tool, no travel involved, nationwide in the US and Canada. Modules that need to be worked off the vehicle — boot-mode reads, EEPROM repair, cloning, TCM unlocks, BMW DME and FRM work, the Mercedes ESL emulator — go mail-in bench. Call with the OEM and module and we pick the lane together.
Dispatch us to your Seguin bay.
Call with the OEM, module, and fault codes. Same-day service may be available depending on platform, schedule, parts, and security requirements.