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What 8 owners told NHTSA about the 2018 Cadillac Cts-v

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (8)Crash / fire / injury (1)Electrical system (3)Transmission & drivetrain (3)Airbags (1)Engine (1)Lights (1)

3 of 8 complaints match · Transmission & drivetrain · clear filters

Jan 27, 2026Transmission & drivetrainElectrical system

THE TRANSMISSION "SHUDDERS". It does not happen with any regularity and with no advance warning. It may be electronic or mechanical or both.

NHTSA ODI 11713692

Sep 26, 2022Transmission & drivetrain

Rear differential failure confirmed by the dealer at 41,000 miles. Told not to drive it as rear wheels could lock up causing accident. Rear was making load noise 2 days prior to failure with fluid leak upon inspection. Dealer states failure is under warranty but no parts available for 3-6 months.

NHTSA ODI 11486548

Mar 24, 2021Transmission & drivetrainEngine

I WAS DRIVING MY 2018 CADILLAC CTS BETWEEN 50-60MPH AND I LIGHTLY TAPPED ON THE GAS AND THE CAR STARTED SHAKING AND VIBRATING. FELT LIKE IT COULD BE A TRANSMISSION OR A ENGINE MISFIRE. MY CARS TRANSMISSION ALSO SHIFTS VERY VERY ROUGH KINDLY JERKY WHICH CREATES A UNSAFE ENVIRONMENT WHILE IN MOTION. THIS IS A CONSISTENT ISSUE AND WITH MY CAR AND ONLY HAVING 12,000 MILES ON IT I FIND REALLY CONCERNING. THIS VIBRATION ONLY HAPPENS BETWEEN 50-60MPH AND THE ROUGH TRANSMISSION SHIFTING HAPPENS AS I DRIVE IT ALONG WITH VIBRATIONS ARE COMING FROM THE ENGINE WHICH SHAKE MY ENTIRE CAR. ALL SERVICES ARE UP TO DATE. CADILLAC AND GM ARE BOTH NOT SURE OF WHAT THE ISSUE CAN BE EVEN THOUGH THERE IS A PENDING CLASS ACTION LAWSUIT FOR THE SAME ISSUE

NHTSA ODI 11404668

Working with the data? Download all 8 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Cadillac Cts-v verdict →