All though all the listed issues with these cars are covered under their respective warranties, they were the most common complaints from their owners. And besides, warranties aren't meant to be in place to cover problems that are pretty likely to happen! but in this case, we are a bit suspicious. If you are looking to purchase a new car, but don’t want to wait around, you will want to take a look here first.
Mercedes-Benz C-Class

Most common complaints: Infotainment controller failed, display-screen froze, constant rattling noises and power steering failure.
Lincoln MKC

via wikipedia.com
Most common complaints: Faulty steering-wheel, music interface problems, and seat heater failure.
Hyundai Genesis Coupe

Most common complaints: Excessive wind noise, loud rattling noise, touch screen interface froze.
Acura TLX

Most common complaints: Transmission hesitates, shifts roughly or abruptly, voice-command unresponsive and difficulty pairing mobile devices.
Chevrolet Tahoe

via flickr.com
Most common complaints: Water leaks from roof rail, faulty collision or backup sensors, seat heater failure and GPS defective.
Chrysler 300

via youtube.com
Most common complaints: False alarms from security system, cruise control intermittent, UConnect unresponsive, Bluetooth inoperable, remote-start malfunctions and erratic transmission shifts.
Dodge Challenger

via youtube.com
Most common complaints: Erratic shifts or stuck gears, defective alternator, cruise control failure, power seat failure and faulty airbag warning light.
Mercedes-Benz GL-Class

via youtube.com
Most common complaints: Collision-warning sensors not operable, blind-spot sensor failure, infotainment system worked erratically, transmission stuck in gear and premature brake wear.
Infiniti QX60

via youtube.com
Most common complaints: Airbag sensor malfunction, defective catalytic converter, loose window trim and transmission slips.
Ford Focus

via youtube.com
Most common complaints: Clutch replacement, rough or jerky shifts, display screen froze and audio frequently goes silent.
Cadillac ATS

via youtube.com
Most common complaints: Infotainment screen slow or unresponsive, Bluetooth connectivity issues and pistons or rods needed replacement.
Nissan Pathfinder

via wikipedia.com
Most common complaints: Passenger-side airbag wanting light stays on, vibrations or jerks from driveline, transmission slips, loose trim or molding and rear seat heater failure.
Chevrolet Colorado

via youtube.com
Most common complaints: Infotainment screen goes blank, faulty OnStar module, rough or delayed transmission shifts and climate system problems.
Ram 2500

via youtube.com
Most common complaints: Diesel exhaust fluid pump malfunction, leaks in air suspension, faulty overhead interior light and display screen malfunctions.
Chevy Suburban

Most common complaints: Sunroof leaks, engine vibrations, GPS defective and loose trim.
Chevrolet Corvette

Most common complaints: Infotainment screen malfunctions, premature brake wear, defective automatic climate control, faulty GPS and convertible top squeaks.
Jeep Cherokee

via youtube.com
Most common complaints: Rough or erratic shifts, faulty navigation system, backup camera failure, touch-screen freezes, loose weather stripping and constant rattling noises.
Cadillac Escalade

Most common complaints: Touch screen unresponsive, driveline vibration, climate system problems and collision warning sensor malfunction.
Ford Fiesta

via youtube.com
Most common complaints: Loose trim, fuel pump failure, rough or delayed shifts, and transmission needed replaced.
Fiat 500L

via youtube.com
Most common complaints: Display-screen freezes, backup camera failure, voice command unresponsive, erratic shifting, tire-pressure sensor malfunction and running lights prematurely burned out.