Consumer Reports' 2015 reliability survey predicts the reliability of 2016 cars and trucks based on a survey of their subscribers and how they've fared with their new vehicles. This year's survey took into account the owners of 740,000 vehicles, asking about any troubles with transmissions, steering, backup cameras, technology in the car and more.
Although all of the problems below were fixed under warranty, Consumer Reports says the terms and issues highlighted were the most commonly used by car owners in the survey, and that some of the repairs required several visits to the dealer with lengthy delays.
Check out the full list of the 20 least reliable cars below. To read about the best and worst car brands in 2015, click here.
20. Mercedes-Benz C-Class
Reliability score: -82
Reported issues: "Infotainment system controller failed. Display-screen froze. Power steering failure. Rattles. Stalled at idle."
19. Lincoln MKC
Reliability score: -84
Reported issues: "Faulty steering-wheel controls. Music interface problems. Wind leak. Wiper motor faulty. Seat heater failed."
18. Hyundai Genesis Coupe
Reliability score: -87
Reported issues: "Touch screen froze. Excessive wind noise. Rattles. Transmission replaced. A/C compressor replaced."
17. Acura TLX
Reliability score: -92
Reported issues: "Transmission hesitates, shifts abruptly or roughly; some gearboxes were reprogrammed or replaced. Voice-command not responsive. Phone-pairing difficult."
16. Chevrolet Tahoe/GMC Yukon
Reliability score: -95
Reported issues: "Water leak from roof rail. Faulty collision or backup sensors. Cylinder-head replacement. Seat heaters failed. GPS antenna defective."
15. Chrysler 300
Reliability score: -99
Reported issues: "False alarms from security system. Alternator replaced. Automatic climate system intermittent. Cruise control intermittent. UConnect froze or shut down. Bluetooth device-pairing inoperable. Voice-command unresponsive. Remote-start malfunction. Rattles and squeaks. Erratic transmission shifts. Transmission replaced."
14. Dodge Challenger
Reliability score: -107
Reported issues: "Erratic shifts or stuck gears. Transmission replaced. Coolant leak. Defective alternator. Cooling-fan failure. Airbag warning light. Cruise control failure. Power seat failure. Water in trunk. Noisy rear differential replaced."
13. Mercedes-Benz GL-Class
Reliability score: -109
Reported issues: "Collision-warning sensors not operable. Blind-spot sensors failed. Power steering failed. Premature brake wear. Wiper motor quit. Display screen went blank. Infotainment system worked erratically. Phone pairing sporadic. Spotty voice recognition. Rattles in door or liftgate. Transmission stuck in gear. Engine computer needed reprogram."
12. Infiniti QX60
Reliability score: -116
Reported issues: "Airbag seat sensor malfunction. Defective catalytic converter. Interior squeaks. Loose window or roof rack trim. Door rattles. Transmission slips. Transmission replaced."
11. Ford Focus
Reliability score: -118
Reported issues: "Clutch replacement. Engine knock. Rough, jerky, or delayed shifts. Transmission reprogrammed. “Sketchy” phone pairing. Display screen freeze. No audio. SYNC software revision."
10. Cadillac ATS
Reliability score: -120
Reported issues: "Infotainment touchscreen slow to respond or froze. iPod and iPhone usability problems. Pistons or rod replaced."
9. Nissan Pathfinder
Reliability score: -126
Reported issues: "Passenger-side airbag warning light stays on. Vibrations or jerks from driveline. Transmission slipping. Transmission replaced. Intermittent image from rear camera. Battery drain with car off. Rear seat heaters failed. Loose trim and molding."
8. Chevrolet Colorado/GMC Canyon
Reliability score: -153
Reported issues: "Infotainment screen went blank. Bad OnStar module. Rough or delayed transmission shifts. Climate system problems. Squeaks and rattles."
7. Ram 2500
Reliability score: n/a; score for Ram 1500 is -37
Reported issues: "Diesel exhaust fluid pump or gauge malfunction. Leaks in air suspension. Faulty NOx sensor. Faulty overhead interior light. Display screen went blank."
6. Chevrolet Suburban/GMC Yukon XL
Reliability rating: -154
Reported issues: "Sunroof leak. Engine vibration. GPS antenna defective. Loose trim. Transfer-case computer needed resetting."
5. Chevrolet Corvette
Reliability score: -178
Reported issues: "Infotainment screen froze or went blank. Premature brake wear. Defective automatic climate control. Faulty GPS. Squeaks from convertible top."
4. Jeep Cherokee
Reliability score: -250
Reported issues: "Rough, jerky or erratic shifts. Transmission needed reprogramming, sometimes more than once, or replacement. Engine computer reprogrammed or replaced. Faulty navigation system. Backup camera failed. Touch-screen froze. Oil leak. Dashboard squeaks. Faulty ball joints. Driveline vibration. Loose weather stripping. Sunroof, seat, dash, or lift-gate rattles."
3. Cadillac Escalade
Reliability score: -256
Reported issues: "Unresponsive touch screen. Driveline vibration. Transmission replaced. Climate system problems. Backup camera, collision warning, and lane departure-warning malfunctions."
2. Ford Fiesta
Reliability score: -267
Reported issues: "Clutch needed adjustment or replacement. Gearbox jumps out of gear. Rough, noisy, jerky, or delayed shifts of automatic. Transmission reprogrammed or replaced. Fuel pump failure. Rattles. Loose trim."
1. Fiat 500L
Reliability score: -276
Reported issues: "Radio replaced. Display-screen froze. Backup camera failed. Voice commands ignored. Battery failed. Erratic shifting. Gears won’t engage. Transmission needed reprogramming. Turbo unit replaced. Engine replaced. Running lights burned out. Front tie rod broke. Tire-pressure monitor sensor malfunctioned."