Used Car Inspection Checklist (Embed)

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Year

Make

Model

VIN (last 6)

Mileage

Asking $

0 / 61 checked

Documents & VIN

0 / 7

If the title isn't clean, nothing else matters. Always check this section first — at the seller's house, before you start the engine.

Title is clean (not salvage / rebuilt / flood) Walk away

A salvage or rebuilt title means the car was totaled by an insurance company. Resale value drops 20–40% and most lenders won't finance it. Flood titles are even worse — long-term electrical issues are guaranteed. If the title says any of these, walk.
VIN on title matches VIN on dashboard + door jamb Walk away

If the VINs don't match, the car was either re-VINed (stolen) or has a fraudulent title. This is a felony to ignore. Walk away and call the police if you're suspicious.
CARFAX or AutoCheck history pulled — no major collisions or odometer rollback Walk away

An undisclosed accident or odometer rollback is grounds to walk. Even if the seller is honest, knowing a $40,000-repair history changes what the car is worth on the resale market.
NHTSA recall lookup completed — no open safety recalls Big fix

Open recalls (especially Takata airbags or unintended-acceleration software) can be lethal. Most are free to fix at a dealer, but some require parts that take months. Check at nhtsa.gov/recalls before you commit.
Service records present and consistent with the mileage Big fix

A car with no service records is almost always one where maintenance was skipped. The timing belt history alone (interval-driven on most non-chain engines) can be a $1,500–$3,000 repair the buyer inherits.
No outstanding lien — title is in the seller's name Walk away

If the seller still owes a bank money on the car, you can't legally take possession. Title transfers from a lien-held car require the lender's release in writing. Don't let a seller promise to 'pay it off after you give them the cash.'
Current registration valid (not expired or out of state) Small fix

Expired registration usually means inspection failures the seller didn't fix, or back fees you'll inherit. Out-of-state plates can trigger a state-specific safety inspection that costs $50–$300 to pass.

Exterior — Body & Glass

0 / 8

Walk a 360° loop in good daylight. What you're looking for is paint mismatches, panel-gap inconsistency, and rust — three signs of a previous accident or long-term neglect.

Paint color and finish consistent across all panels (no overspray, no mismatches) Big fix

Color mismatches between adjacent panels mean a body shop repainted at least one panel. That's evidence of a collision, even if no claim was filed. Look at the panel under direct sunlight — the gloss and orange-peel pattern give it away.
Panel gaps even — doors, hood, trunk all align without binding Big fix

Uneven gaps mean either a previous collision wasn't fully straightened, or the unibody itself is bent. A 1mm difference is normal manufacturing variance; a 5mm difference is a frame issue.
No rust on body panels, rocker panels, or wheel arches Big fix

Surface rust on a fender flare is cosmetic. Rust along the rocker panel — the long flat strip below the doors — is structural. Rocker panels carry crash loads; once they're rusted through, the car fails any modern crash test.
No bondo, paint bubbles, or hidden body filler Big fix

Run a refrigerator magnet over each panel — body filler doesn't hold the magnet. A magnet that won't stick where it should means the panel was crashed and filled rather than replaced.
Windshield free of cracks or chips bigger than a quarter Small fix

A full windshield replacement runs $200–$500 on most modern cars (more for ones with rain-sensor or HUD). State inspection rules vary, but a crack in the driver's view fails most state inspections.
Side and rear glass intact — no chips, no cracks Small fix

Side glass (especially rear quarters) is harder to source than windshields and runs $150–$400 at a glass shop. Power-window glass on a luxury car can hit $600.
Both side mirrors functional (folding + heated if equipped) Small fix

OEM heated/folding mirrors are $200–$500 each. Aftermarket mirrors don't always have the right wiring harness. If a mirror is missing or broken, that's a real-money hit.
Body trim, badges, and weatherstripping all secure Note

Loose trim usually points to either body work that wasn't finished or the previous owner pulled badges off without replacing them. Loose weatherstripping leaks water — and a leaking weatherstrip is how mildew gets started inside.

Wheels & Tires

0 / 6

Tires tell two stories: how much tread is left (replacement cost), and how the car has been driven (alignment + suspension health from the wear pattern).

All four tires have at least 4/32" tread (penny test passes head-down) Small fix

Insert a penny upside-down in the tread groove. If you can see the top of Lincoln's head, the tire is at or below 4/32" and is due for replacement. A new set of four mid-grade tires runs $400–$1,200 installed.
Tread wear even — no cupping, feathering, or inner-edge wear Big fix

Cupping means worn struts. Feathering means worn tie-rod ends. Inner-edge wear means alignment is off (sometimes from a bent control arm). All three are real money — and you'll need new tires too once the cause is fixed.
All four tires match brand, size, and load rating Small fix

Mixed tires on an AWD car will damage the differential within 2,000 miles — the system tries to compensate for the diameter mismatch. A new set of four AWD-rated tires is the only fix. On a 2WD car it's a comfort and safety issue, not a damage issue.
Tire DOT date is under 6 years old Small fix

The last 4 digits of the DOT code are the week + year of manufacture. Tires older than 6 years lose grip even if tread is fine — the rubber compound hardens. NHTSA recommends replacement at 6 years regardless of wear.
Rims have no curb damage, cracks, or bent edges Small fix

Bent rims cause vibrations that destroy wheel bearings. A cracked rim is a slow-leak that's always one pothole from total failure. New OEM alloy rims run $300–$800 each; used aftermarket are cheaper.
Spare tire (or repair kit) present, inflated, with jack and lug wrench Small fix

Most modern cars ship with a tire-mobility kit (sealant + compressor) instead of a spare. If neither is present and you get a flat 30 miles from town, you're calling a $200 tow. Donut spares aren't all that — but they're better than nothing.

Lights & Dashboard

0 / 5

Have a friend stand outside while you cycle through the lights. Most multi-light failures are bad ground wires, not bad bulbs — and a bad ground means deeper electrical issues to chase.

Both headlights work — low beam and high beam Small fix

A burned-out HID bulb runs $80–$250 to replace. LED headlight assemblies run $400+ on most modern cars. Halogens are a $20 fix. Find out which kind the car has before you decide if it's a small or a big issue.
Taillights and brake lights work on both sides Small fix

Have someone press the brake while you walk around. A single burned bulb is a $5 fix. A whole side dark on both functions usually means a corroded ground in the trunk hinge area — a $200 wiring repair.
All four turn signals + hazards work Small fix

A turn signal that 'flashes fast' on one side has a bulb out. A turn signal that doesn't blink at all usually means a failed flasher relay ($30 part). Hazards that don't work indicate a switch failure, which is harder to source.
Dashboard warning lights illuminate at key-on, then turn off after engine start Walk away

Persistent CEL = stored fault code (always run an OBD2 scan before buying). Persistent ABS = brake-system issue. Persistent airbag = the SRS module won't deploy in a crash. A dashboard with all three is one of the strongest 'walk away' signals on a used car.
Headlight lenses clear — not heavily oxidized or yellowed Small fix

Oxidized headlights cut beam intensity by 50–75%. A $20 restoration kit fixes most of them in 30 minutes; severe oxidation needs new assemblies ($150–$800). Easy to negotiate but worth knowing about.

Under the Hood — Engine OFF

0 / 8

Pop the hood with the engine cold and OFF. You're looking at the fluids first — they tell you 90% of an engine's health story before it's even started.

Engine oil at correct level on the dipstick Note

Low oil means either the seller didn't top it off (lazy maintenance) or the engine burns oil. A car with consistently low oil between changes burns ~1 quart per 1,000 miles, which is the threshold for ring or valve-seal repair.
Engine oil is amber or dark brown — NOT milky or chocolate-milk Walk away

Milky oil under the cap or on the dipstick = head gasket failure. Coolant has crossed into the oil galleries. The car will overheat within 50 miles and the head gasket repair is $1,500–$4,000. Walk away.
Coolant at correct level in the overflow tank Note

Low coolant in a parking-lot inspection means there's a leak somewhere — internal or external. External leaks (hose, water pump) are $100–$500 fixes; internal leaks (head gasket) are $1,500+.
Coolant is the correct color (green / orange / pink per spec) — not rusty or oily Big fix

Rusty coolant = the cooling system has corroded. A flush ($150) might fix it; if it doesn't, you're chasing a heater core or radiator that's full of sludge. Oily film on the coolant = head gasket or oil cooler failure.
Transmission fluid bright red or amber — not burnt-smelling or dark brown Big fix

Burnt transmission fluid smells like overcooked toast. It means the friction discs inside the transmission are wearing. A flush won't fix burnt fluid — the transmission is on its way out, and a rebuild is $2,500–$5,000.
No active oil, coolant, or transmission fluid leaks visible Big fix

Wet spots on the engine block, on hoses, or under the car are real leaks, not 'normal seepage.' A simple oil-pan-gasket leak is $200–$400; a rear main seal is $800–$1,500; a transmission pan leak is $150–$300.
Drive belts free of cracks, fraying, or glazing Small fix

A serpentine belt that fails on the highway leaves you stranded. New belts are $40–$80 in parts; installed they're $150–$400. A timing belt (interference engines especially) is the bigger concern — that one bends valves when it snaps.
Coolant and heater hoses firm — not soft, swollen, or cracked Small fix

Squeeze each upper and lower coolant hose. If it feels mushy or you can hear gas inside the rubber, it's about to fail. A radiator hose that fails on the highway costs you a head-gasket job within 10 miles of overheating.

Under the Hood — Engine ON

0 / 5

Cold start the car yourself — never trust a seller who pre-warms it. The first 60 seconds tell you whether the rings are sealed, the valve seals are good, and the catalytic converter is intact.

Cold start — engine catches within 2 seconds, no extended cranking, no metallic knock Big fix

Extended cranking means weak fuel pump or worn rings. A metallic knock at startup is rod knock — once that starts, the engine is on borrowed time. A pre-warmed car hides both. Insist on cold-starting yourself, or come back early next morning.
Engine idles smoothly — no rough idle, hunting, or stalling Big fix

Rough idle is usually a vacuum leak (cheap), an ignition coil ($80–$250 each), or a failing fuel injector (~$300 each). It can also be a bad O2 sensor or MAF. None are catastrophic, but they add up.
Exhaust is clear — no white smoke, no blue smoke, no black smoke after warm-up Walk away

White smoke = coolant in the combustion chamber (head gasket, $1,500–$4,000). Blue smoke = oil burning (rings or valve seals, $1,500–$5,000+). Black smoke = running rich (sensors, sometimes a catalyst). White and blue smoke are walk-away signals.
Battery voltage 13.8–14.5V with engine running (alternator charging) Small fix

If you have a $20 voltmeter, plug it in. Below 13.5V = alternator not charging properly ($200–$600 replacement). Above 15V = voltage regulator failure (will cook the battery and the electronics). Both are real-money fixes.
Check Engine Light stays OFF after start (or scan with OBD2 — no stored codes) Big fix

An off CEL doesn't mean no codes — many cars store fault history that doesn't trigger the light. Plug a $30 scanner in and check stored codes. Even one P0420 (catalyst inefficiency) means a $400–$2,500 repair waiting.

Underneath — Frame, Suspension, Drivetrain

0 / 6

If the seller won't let you put it on a lift or jack stands at a friend's shop, walk. Everything that matters structurally is hidden under the floor.

No rust holes or flaking metal on the frame, rocker panels, or unibody Walk away

Push a screwdriver into any rusty area. If it pokes through or the metal flakes off, the structural integrity is gone. A rusted-through rocker panel cannot pass a safety inspection in most states. Walk away — frame repair on a unibody is not a thing.
No oil, transmission, differential, or coolant leaks visible from underneath Big fix

Drips under the car are a problem. A wet pan, hose, or seal is leaking. Add up the cost of every wet spot — oil pan gasket $300, transmission pan $250, differential seal $300 — and the bill grows fast.
CV axle boots intact — no cracks, no grease slung onto inner fenders Big fix

A torn CV boot lets water and dirt into the joint. Once the joint is dry, it clicks on turns and fails within months. New axle assemblies run $300–$600 each, installed.
Exhaust system has no rust holes, hangers attached, no rattles Small fix

Exhaust rust holes upstream of the catalytic converter let unburned fuel hit the cat — and a damaged cat is $400–$1,500 to replace. Loose hangers will eventually drop the exhaust on the road.
Control-arm bushings, sway-bar links, ball joints look intact (no splits, no play) Big fix

Cracked bushings are a $200–$600 fix per side. Worn ball joints are dangerous — they fail catastrophically and the wheel folds under the car. Push down on each fender corner and watch how the car settles; if it bounces more than 1.5 cycles, the strut is shot.
No suspect aftermarket modifications (welded subframes, body lift on stock truck) Big fix

Welded subframes are a sign of crash repair on the cheap. A body lift on a truck without matching suspension is unsafe. Custom mods are fine if they're done right and documented; sketchy mods are a walk.

Interior & Electronics

0 / 8

The interior is where flood damage hides and where 'mileage doesn't match wear' becomes obvious. Trust your nose.

Interior smells normal — no musty (water leak / flood) or oily (oil-burn) odors Walk away

Musty smell = water has been inside the car. Could be a leaky sunroof drain ($300–$800) — could be a flood title that didn't get reported. Look under the carpet edges for water lines. Oily smell = the engine is venting fumes into the cabin, which means a PCV or seal failure. Either is a walk-away if you can't trace it.
Seat, pedal, and steering-wheel wear match the odometer reading Walk away

A 30,000-mile car shouldn't have a worn-shiny steering wheel or a worn-down driver's seat bolster. Either the odometer was rolled back (felony — walk and report) or the car has been driven hard by multiple drivers. Mileage mismatches go in the walk-away column until you can verify the history.
A/C blows cold (~40°F at vent), heat works, infotainment + Bluetooth work Big fix

An A/C system that won't cool below 50°F at the vent has a refrigerant leak or a failed compressor — $400–$2,500. Infotainment systems can be $1,000+ to replace. The dealer-fix bill on a fully-broken A/C and a stuck-on radio is real money.
All power windows, locks, and mirrors operate from driver and passenger sides Small fix

Power-window regulators are $100–$300 per side, installed. Door-lock actuators are $80–$200. Mirror motors are $150–$400. None individually catastrophic, but a car with three broken power features is a real-money negotiation point.
All seat belts latch and retract smoothly Small fix

A seat belt that doesn't retract is failing the spring inside the retractor. Replacement runs $100–$500 per belt (more for ones with pyrotechnic pretensioners). State inspections in most states require working belts on every seating position.
Airbag covers intact — no replaced steering wheel, no dash cracks at airbag seams Walk away

A steering-wheel airbag that's already been deployed (and not properly replaced with a new one) won't deploy in a crash. The signal: an aftermarket steering wheel, a steering wheel with the airbag emblem missing, or visible seams cracking on the dash above the passenger-side airbag.
Sunroof opens, closes, and drains without leaking (if equipped) Big fix

Sunroof drains plug with debris. Once they plug, water pools in the headliner and rains down into the cabin. The headliner replacement is $400–$1,200 and the underlying water can fry the SRS module ($800+).
Trunk / cargo area dry, jack and tools present, no water staining Small fix

A wet trunk usually means a bad rear weatherstrip ($150) or a leaking taillight gasket ($30). Water in the spare-tire well is the first place flood damage shows up — pull the spare and look at the metal underneath.

Test Drive

0 / 8

Drive the car on real roads — surface streets, a stretch of highway, and a parking lot for low-speed maneuvers. 30 minutes minimum.

Engine cranks and starts within 2 seconds when cold Small fix

Slow cranking = weak battery ($150 fix), corroded terminals ($30), or weak starter ($350–$600). Slow starting after the engine catches usually means a weak fuel pump ($400–$900). Either is a real-money repair waiting.
Transmission shifts smoothly through every gear — no slip, no flare, no clunk Walk away

An automatic transmission that flares (engine revs without the car accelerating) is slipping. A stick that grinds in any gear has a worn synchro or a failing clutch. A transmission rebuild on most cars is $2,500–$5,000 — typically more than the car is worth on a 100K-mile vehicle. Walk.
Brakes stop the car straight — no pulling, no squealing, no vibration through the pedal Big fix

Pull = stuck caliper or worn pads on one side. Squeal = pads at the wear indicator. Vibration through the pedal = warped rotors. Brake job on all four corners is $400–$1,500 — common at 50–80K miles, but you should know going in.
Steering centers itself after a turn — no pull, no excessive play Big fix

Steering pull = alignment off, or a bent control arm. Loose steering = worn tie-rod ends, ball joints, or rack bushings. Tie-rod end replacement + alignment is $300–$600. A failing steering rack is $800–$1,500.
No clunks, knocks, or squeaks over bumps Big fix

Clunks are usually worn sway-bar end-links ($80–$200 fix) or strut mounts ($300–$700). A persistent knock that follows wheel speed is a wheel bearing — $300–$600 per corner.
Hands-free, the car tracks straight on a flat road Small fix

Drift to one side means alignment is out — cheap to fix ($100 alignment), but it can also be a bent control arm or worn front strut from a previous impact. Look at tire wear to differentiate.
A/C cools to under 50°F at the vent within 5 minutes Big fix

A/C that cools warm-but-not-cold needs a recharge ($150) or has a slow leak. A/C that doesn't cool at all needs the compressor or condenser — $400–$2,500. Test it in the parking lot before you drive — the engine doesn't have to be at temp.
No vibration through the seat or steering wheel at 60–70 mph Big fix

Vibration that comes in at speed and goes away when you brake is a wheel out of balance — $20 fix. Vibration that gets worse when you brake is a warped rotor. Vibration that's constant is a bent rim or driveshaft balance — much more expensive.

Inspection result

Start checking

Start checking items above to see your deal score

Issues found

Est. repair

Walk-aways

This checklist is a guide, not a guarantee. It catches the visible 80% of problems a buyer can find in a parking lot. A full pre-purchase inspection by an ASE-certified shop ($100–$200, ~1 hour on a lift) is the only way to find frame damage, hidden leaks, and pre-existing damage to the timing components. If the seller refuses a PPI, walk away — there's a reason they're refusing. Repair-cost ranges are 2025–2026 estimates from RepairPal averages and will vary by region and vehicle. Reviewed by Mike Reeves, ASE Master Technician.