Keep complete copies in date order. Missing a document should not stop you from asking about a potentially time-sensitive matter.
Purchase, lease, and warranty records
Keep the vehicle identification number in your private records. Do not put your VIN, account numbers, or personal paperwork in a public review or social media comment.
- Signed purchase or lease agreement, including every page and addendum.
- Warranty booklet and any certified pre-owned warranty or service contract.
- Current registration and delivery paperwork.
- Financing or lease statements and any written manufacturer offer.
Every repair visit—not just the largest invoice
Gather the opening repair order and closing invoice for each visit. A zero-dollar warranty repair can be just as useful as a paid repair. Include visits where the shop could not reproduce the concern or asked you to return later.
Check that the records show dates, mileage, your complaint, diagnostic findings, work performed, and when the vehicle was available for pickup. If something is missing, request a complete copy from the service facility. Keep both versions if a record is corrected.
Messages, photos, and expenses
Preserve the original files and dates. Screenshots are useful, but save full conversations or exports when available so a cropped image does not lose context. Keep original photos unchanged so the details and dates remain available.
- Service-app messages, dealer emails, and manufacturer case correspondence.
- Photos of warning messages and safely recorded evidence of the symptom.
- Recall notices, software-update records, and parts-delay notices.
- Towing, rental, and other related receipts.
- A short chronology of what happened and how it affected your use of the vehicle.