Used Car Red Flags: What You Need to Know
A recent study analyzed 1.9 million anonymized VIN checks in the U.S. from January to September 2025, revealing some alarming statistics about the used car market.
- 27% of checked vehicles had at least one major red flag.
- 7.6% carried a branded title (salvage, rebuilt, lemon, junk).
- 3.1% showed flood or water indicators.
- 5.8% had odometer concerns (rollbacks, mileage gaps, or conflicting readings).
- 10.1% included a major accident/structural event in their history.
- 2.2% showed open liens or ownership issues that could slow a sale or transfer.
- 14% were seen at auction at least once within 90 days before a retail listing.
These red flags can lead to higher repair costs, lower resale value, or paperwork delays. It’s essential to look beyond a car’s surface-level appearance and dig into its history.
Biggest Red Flags and What They Mean
- Branded Title: A vehicle with a branded title has had significant damage or was previously deemed unfit for the road. Even after repairs, insurance premiums and resale value may be affected.
- Flood or Water Damage: Water can seep into a vehicle’s wiring, sensors, carpets, and safety features, leading to costly repairs down the line.
- Odometer Anomalies: Inconsistent mileage readings can obscure a vehicle’s wear and tear, reducing its service life and impacting warranties or financing.
- Major Accident/Structural Damage: Frame repairs and airbag deployments can compromise a vehicle’s safety features and overall performance.
- Active Lien/Title Problems: Outstanding liens or ownership issues can slow or prevent the transfer of ownership, putting buyers at risk of financial loss.
Regional Clues and Vehicle Types
- Flood flags are more common near coasts and river basins.
- Accident and corrosion risks are higher in snow states.
- Auction-to-retail flips are more common near major logistics hubs.
- Pickups and large SUVs are more likely to have branded titles due to heavy use or prior commercial duty.
- Compact sedans and small crossovers have fewer branded titles but more odometer disputes.
- EVs and hybrids have lower title-brand rates overall but may have more total-loss claims after flood events.
How to Spot Trouble
- Title Hop: Be wary of vehicles that change ownership quickly or are registered in different states.
- Photo Mismatch: Compare photos from different sources to identify potential discrepancies.
- Service Gaps: Look for gaps in a vehicle’s service history, which can indicate neglect or hidden problems.
- “Just Detailed” Flood Flips: Be cautious of vehicles with fresh carpets, new seat foam, or other signs of recent detailing, which may be hiding water damage.
A 5-Minute Red-Flag Scan
Before taking a used car for a test drive:
- Check the timeline for any sudden jumps or inconsistencies in mileage or dates.
- Scan photos for signs of damage or water intrusion.
- Verify the VIN on the dash, door jamb, hood, and trunk to ensure consistency.
- Trust your instincts – if anything feels off, walk away.
What the Experts Recommend
- Read beyond the headline: A “clean title” doesn’t guarantee a clean history.
- Chase the story, not the shine: Verify the details behind a vehicle’s history.
- Use a lift or inspector: Consider hiring a professional to inspect a vehicle before purchasing.
By being aware of these potential red flags and taking the time to investigate a used car’s history, you can make a more informed purchasing decision and avoid costly surprises down the road.








