Reflash Policy
Reflashes — reapplying or revising calibration parameters on the ECM — are the operational backbone of the warranty. During the warranty period, reflashes for warranty-covered issues are free. Outside the warranty period or for non-warranty causes, reflashes are billed at the standard service rate.
Free Reflash Scenarios
- Calibration-related issues during the warranty period that fall within the tuning warranty scope
- Calibration parameters that didn't load correctly during the original work and need to be reapplied
- Calibration drift or corruption that develops during normal operation within the warranty period
- Recurring patterns that show our original scope didn't address the underlying duty-cycle reality
Billed Reflash Scenarios
- Reflashes outside the warranty period — billed at standard service rate
- Duty cycle changes after delivery that require new calibration scope
- Dealer reflash that overwrote our calibration — reflashing back to our work is billed
- Customer-requested calibration changes (different power tune, different parameter target)
- Reflashes triggered by hardware service that introduced new fault patterns
- OEM software updates released after delivery that require recalibration for compatibility
The Reflash Workflow
Reflashes follow the same service-method options as initial calibration work. Ship-in is the default for most reflash scenarios; remote programming is available for supported platforms; on-site reflash is available for South Florida fleet customers and nationwide fleet visits where multiple reflashes batch together.
Ship-in reflash: Same workflow as initial ship-in. Pull the ECM, ship to us, we reapply or revise calibration parameters, ship it back. 1–2 day turnaround in shop for reflash work — typically faster than initial calibration since the scope is already established.
Remote reflash: Available on Cummins INSITE-compatible and Paccar Davie4-compatible platforms. Same-day session window. The fastest path for time-sensitive reflash work.
On-site reflash: For fleet customers with recurring on-site service cadence, reflashes happen during scheduled visits. For South Florida customers, individual reflash visits are scheduled based on shop calendar availability.
Reflash Turnaround
Reflash work is typically faster than initial calibration because the scope is already established. Standard reflash turnaround:
- Ship-in reflash: 1–2 days in shop. Round-trip including overnight shipping is 3–4 business days domestic, 5–8 days international.
- Remote reflash: 1 to 3 hour session window. Booking lead time 1–3 business days depending on technician availability.
- On-site reflash: Per scheduled fleet visit cadence for fleet customers; case-by-case for individual reflashes.
- Urgent reflashes: Same-day work in shop when shop capacity allows. Tell us during the ticket conversation if timing matters.
When A Reflash Isn't The Right Path
Not every operational issue needs a reflash. Sometimes the diagnostic conversation surfaces that the underlying cause is a sensor fault, a harness issue, an EGR cooler failure, or another hardware-side problem. A reflash on a hardware issue won't resolve the underlying cause; it may temporarily mask it, but the issue returns.
When the diagnostic conversation points to hardware, we'll say so. Reflashing isn't the right path; component diagnosis and repair is. We're not in the hardware service business, so we'll point you to the right path — typically a diesel shop in your area with strong diagnostic capability on your platform.
For complex situations where hardware and calibration are intertwined — typical on platforms with aging aftertreatment systems — the resolution may involve both. Hardware service first, then a reflash to align calibration with the new hardware state. This is one of the scenarios where reflash work after hardware service may be billed even if the calibration is still under warranty, depending on the specifics.
Fleet Reflash Programs
For fleet customers running ongoing service relationships, reflash work typically operates under a documented program rather than ticket-by-ticket pricing. Common structures:
Annual reflash allowance: A negotiated number of reflashes per truck per year covered under the fleet relationship, with additional reflashes billed at fleet rate.
Recurring on-site cadence: Scheduled fleet visits (quarterly or semi-annually) where reflashes batch alongside other fleet work. Reflashes during scheduled visits are typically covered under the fleet relationship; off-cycle reflashes follow the standard reflash policy.
Remote reflash subscription: For fleet shops with diagnostic infrastructure, a remote-reflash subscription provides predictable reflash coverage across the fleet.
Fleet program structures get worked out during the fleet relationship setup. For prospects considering fleet-level engagement, the quote conversation covers the program options.
Related Pages
Need A Reflash?
Open a ticket or call us. We'll confirm whether the reflash is warranty-covered or billed during the diagnostic conversation. No surprises.