Used Car Red Flags You Should Never Ignore

Article summary

• Before scheduling a test drive, carefully review online listings for red flags like pricing that's significantly below market value, vague or incomplete descriptions, inconsistent information and sellers who avoid direct questions or pressure you into a quick sale.
• During an in-person inspection and test drive, watch for mismatched paint, uneven tire wear, dashboard warning lights, signs of water damage, poor handling, unusual noises and transmission issues.
• Before finalizing any purchase, obtain a vehicle history report, verify the VIN and have the car inspected by a licensed mechanic to catch anything you may have missed.

Buying a pre-owned vehicle is a great way to get a solid vehicle without paying the sticker price of something brand new. However, there is an inherent risk when doing so. Unlike a new vehicle with no previous ownership history, a used vehicle has a past. It may have had previous owners, years on the road and potentially even an accident or two. If you’re not paying attention to details, your lower-priced dream car could turn into a nightmare.

This guide will provide tips for identifying several used vehicle red flags, like fraudulent or misleading listings, physical issues with the vehicle, potential test drive issues and inconsistencies with the vehicle history report. This information will be useful in final negotiations or give you the confidence to walk away.

Red flags in online used car listings

When searching for the perfect new-to-you vehicle, you will occasionally come across that dream listing. A beautiful, but not perfect, vehicle at an unbeatable price. Before rushing in for a test drive, take a minute to review the listing and ask the seller some questions. Doing so could save you a lot of time and frustration.

Some of the most common online red flags to look for include:

• Price too good to be true: When you see the price, be sure to compare it to the market value of other vehicles of the same year, make and model with similar mileage and condition. If it is significantly lower than market value, it could be the result of:   
  • An undisclosed accident
  • Hidden mechanical issues
  • Title issues
  • A scam 
• Missing photos or vague description: If a listing is missing photos or the listing doesn’t contain relevant information regarding condition, maintenance or ownership history, it’s important to ask clarifying questions.
• Evasive or pushy seller: If the seller refuses to provide the VIN (vehicle identification number) or answer direct questions, you should proceed with caution or not at all. Same goes for a seller trying to push for a quick sale.
• Inconsistent information: Pay attention to the mileage, trim, condition and accident-related details offered by the seller and how it compares to available records. If the seller’s claims don’t match the available reports, this is a huge red flag.

Spotting one or more of these online red flags in your preliminary search can save you a lot of time weeding out a problematic vehicle before you ever see it in person. 

Physical red flags to look for during a visual inspection

A visual inspection can tell you a lot about a vehicle, so don’t rush through it. Here’s what you should watch out for:

• Mismatched paint or body panels: If paint looks newer in one area, or if the paint in one area of the vehicle doesn't match another, it could indicate unreported accident repairs.
• Uneven tire wear: Abnormal or inconsistent tread loss across the surface of the tire could indicate suspension, alignment or steering issues.
• Dashboard warning lights: These lights indicate a potential underlying issue. Warning lights related to the engine, brakes, airbags, battery and transmission should never be ignored.
• Mileage and wear inconsistencies: Wear on the steering wheel, seats or pedals that appears excessive for the vehicle's age or mileage could indicate an issue.
• Water damage: Water stains or damp carpet, corrosion under the seats or in the trunk, or a musty smell could indicate the vehicle could have been in a flood.

Red flags during a test drive

Before purchasing, take the vehicle on a test drive. This will reveal other potential red flags that could influence your decision. Pay attention to the following:

• Poor handling or braking: Strange vibrations, the vehicle pulling to one side or delayed braking could indicate underlying issues.
• Unusual noises: Listen for a knock in the engine, clunking suspension or squealing brakes.
• Transmission issues: Be sensitive to hard shifting, slipping gears or hesitations during acceleration.

Before you buy

It’s important to supplement the information gathered with a vehicle history report and a professional inspection.

• Vehicle history report: Services like Carfax (which offers a discount to AAA Members) run a VIN check that displays reported used car history. This could reveal title issues, odometer inconsistencies and even frequent ownership changes, which raises the question, “Why is no one keeping this vehicle?”
• Professional inspection: A licensed mechanic could potentially catch red flags you might have missed or they could put your mind at ease. They can look for previous repairs, identify structural damage and highlight any safety concerns. If you’re looking for a reputable professional to assist you in your decision-making process, consider taking the vehicle to a nearby AAA-owned Car Care Center or AAA Approved Auto Repair (AAR) facility.

Red flag checklist

Use this list as a reference during your used car hunt:

• Acquire a vehicle history report
• Verify the VIN
• Review maintenance records
• Conduct a visual inspection
• Take a thorough test drive
• Have the vehicle inspected by a licensed mechanic

While some issues might still slip through the cracks, this checklist will help you make an informed purchasing decision and, hopefully, avoid a significant financial pitfall once the vehicle is yours.