What are the most common Cadillac CT5 problems?
According to Au7o's analysis of 725+ owner reports, the 2020-2025 Cadillac CT5 has 12 documented issues. The most frequently reported are: GM 6.2L V8 Engine Recall for Connecting Rod Bearing Failure, Roof Rail Side-Curtain Airbag Incorrect Installation, LT4 Supercharged V8 Premature Engine Failure. Of these, 5 are rated critical and should be addressed promptly.
Is the Cadillac CT5 reliable?
The 2020-2025 Cadillac CT5 has 12 known issues documented across 725+ owner reports. 5 issues are rated critical: GM 6.2L V8 Engine Recall for Connecting Rod Bearing Failure and Roof Rail Side-Curtain Airbag Incorrect Installation and LT4 Supercharged V8 Premature Engine Failure and 10L80 Harsh Shifts and Check Engine Light with DTC P2812 or P2814 (Line Pressure Solenoid) and Upper Intermediate Steering Shaft Chafes Front Brake Line (Service Update N202296840). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Cadillac CT5 problems?
Repair costs for known Cadillac CT5 issues range from $0 to $15,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, GM 6.2L V8 Engine Recall for Connecting Rod Bearing Failure, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year Cadillac CT5 is the most reliable?
Reliability varies across model years of the Cadillac CT5. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2020-2025 Cadillac CT5 with 12 documented issues documented across 725+ owner reports.
What is the 2021-2024 Cadillac CT5 GM 6.2L V8 Engine Recall for Connecting Rod Bearing Failure?
After widespread engine failures and an NHTSA investigation, GM recalled all 2021-2024 vehicles equipped with the 6.2L V8 engine including the CT5-V. The recall addresses potential connecting rod bearing failure that can cause engine seizure, stalling, or fire risk. The recall co… Repairs typically run $0-$0. Severity: high.
What is the 2020-2022 Cadillac CT5 Roof Rail Side-Curtain Airbag Incorrect Installation?
Certain 2020-2022 CT5 vehicles may have roof rail side-curtain airbags that were not installed correctly during manufacturing. The improper installation could result in the airbag not deploying properly during a side-impact crash, reducing occupant protection. This affects both V… Repairs typically run $0-$0. Severity: high.
What is the 2020-2024 Cadillac CT5 LT4 Supercharged V8 Premature Engine Failure?
The 6.2L supercharged LT4 V8 in CT5-V Blackwing models has experienced premature engine failures including bottom-end bearing failures, lifter collapse, and metal shavings found in oil. Failures have been reported as early as 5,000-15,000 miles. Car and Driver documented a catast… Repairs typically run $0-$15,000. Severity: high.
What is the 2020-2021 Cadillac CT5 10L80 Harsh Shifts and Check Engine Light with DTC P2812 or P2814 (Line Pressure Solenoid)?
Owners of 2020-2021 Cadillac CT5 and CT5-V models equipped with the GM Hydra-Matic 10L80 10-speed automatic report harsh, abrupt shifts accompanied by an illuminated check engine light. GM Preliminary Information bulletin PIP5799 documents an electrical fault in Transmission Cont… Repairs typically run $0-$3,500. Severity: high.
What is the 2020 Cadillac CT5 Upper Intermediate Steering Shaft Chafes Front Brake Line (Service Update N202296840)?
In certain 2020 Cadillac CT5 models the upper intermediate steering shaft can come in contact with the front brake fluid lines and chafe against them; if contact occurs it can cause wear or damage to the fluid lines
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This chafing can wear through the brake line, causing a loss… Repairs typically run $0-$0. Severity: high.
What is the 2020-2024 Cadillac CT5 2.0T LSY Engine Timing Cover Oil Leak?
The 2.0T turbocharged four-cylinder (LSY) in the CT5 can develop oil leaks from the timing cover gasket. The gasket develops cracks after heat cycling, causing oil to seep from the front of the engine. In some cases, this leads to noticeable oil consumption between changes. GM re… Repairs typically run $500-$1,500. Severity: medium.
What is the 2024-2025 Cadillac CT5 Super Cruise 'Unavailable' Message — System Inoperative from Delivery?
Owners report Super Cruise repeatedly displays an 'Unavailable' message and cannot be activated; OnStar troubleshooting fails and dealers escalate to GM engineering with no ETA, citing PIC6557B (Super Cruise Unavailable Message, dated Sept. 25, 2024)
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Multiple 2025 CT5 owners… Repairs typically run $0-$0. Severity: medium.
What is the 2020 Cadillac CT5 Electric Water Pump Circuit Board Failure — Overheat and Limp Mode?
GM issued a TSB (December 2020) stating the printed circuit board inside the electric water pump on affected CT4/CT5 vehicles may have been manufactured incorrectly, potentially causing a water pump failure; when this occurs the vehicle displays warnings as coolant temperatures… Repairs typically run $0-$1,400. Severity: medium.
What is the 2020-2025 Cadillac CT5 Infotainment / Center Display Freezing, Black Screen and Stalled Software Update (stuck at 99%)?
CT5 owners report the center infotainment display freezing, becoming unresponsive to touch, or hanging during an over-the-air or dealer-pushed software update — a common symptom is a black screen with a blue progress bar stuck at 99%. The condition is documented on a 2020 CT5 cas… Repairs typically run $0-$400. Severity: medium.
What is the 2022-2024 Cadillac CT5 Tremec 6-Speed Manual 2nd Gear Notchiness and Difficulty?
CT5-V Blackwing models equipped with the Tremec TR-6060 6-speed manual transmission frequently exhibit difficulty and notchiness when shifting into 2nd gear. The issue occurs both when cold and when hot, particularly when downshifting from highway speeds. Some dealers have attrib… Repairs typically run $0-$4,000. Severity: low.
What is the 2020-2023 Cadillac CT5 Daytime Running Lights Won't Turn Off With Headlights (Recall 22V903 / N222386380)?
GM recalled certain 2020-2023 Cadillac CT4 and CT5 (along with 2021-2023 Buick Envision and 2022-2023 Cadillac Escalade/Escalade ESV, Chevrolet Silverado 1500/Suburban/Tahoe, and GMC Sierra 1500/Yukon/Yukon XL — 740,108 vehicles total) because the daytime running lamps may not de… Repairs typically run $0-$0. Severity: low.
What is the 2020-2025 Cadillac CT5 10-Speed Transmission Adaptive Learning and Shift Quality?
The CT5 uses GM's 10-speed automatic (10L80) that can exhibit harsh shifts, delayed engagement, and shift hunting, particularly when the adaptive learning resets. The 10-speed has very complex shift logic and can take 500+ miles to fully adapt to a driver's pattern after a batter… Repairs typically run $0-$500. Severity: low.
