Mac's may perform inspection, diagnostic, road test, scan tool, electrical, pressure, leak, teardown, measurement, calibration, programming, or other testing to verify the cause of failure.
If Mac's confirms a valid covered claim, related diagnostic/testing needed to confirm the covered failure will be handled as part of the warranty remedy. If the condition is not covered, standard diagnostic, testing, teardown, reassembly, towing, storage, and related charges are the customer's responsibility.
Claims may be denied when the failure is unrelated to Mac's repair, caused by another failed component, caused by continued operation after symptoms, not duplicated, outside the term/mileage limit, caused by misuse/neglect/abuse/racing/overheating/low fluid/contamination/external damage, caused by customer-supplied parts, altered by others, or marked no-warranty/as-is/used/salvage/temporary/customer-supplied on the invoice.
Unless specifically stated on the invoice, replacing an external seal, gasket, sensor, hose, belt, pump, solenoid, module, accessory, or related component does not create warranty coverage for an entire engine, transmission, differential, transfer case, or other major assembly.
Electronic repairs may be affected by battery condition, wiring, software, programming, module availability, network communication, prior repairs, aftermarket accessories, water intrusion, corrosion, and manufacturer updates; Mac's does not guarantee future software compatibility, module availability, manufacturer programming access, or unrelated electrical/network performance.