Cadillac CT5
2.0L turbo four with TriPower variable valve lift and cylinder deactivation. 228 hp, 258 lb-ft from 1,500 rpm. Adequate power for the compact SUV class, though not thrilling in the luxury context. Dexos1 oil with short change intervals (max 5,000 miles) is mandatory. Active thermal management with electronic coolant valves — these fail first. Intake valve carbon buildup from 60k miles due to direct injection only. Thrust bearing wear rare but catastrophic when it occurs.
2.0T in the CT5 — the fuel-efficient entry
228 hp in the CT5 is adequate but tight for a car this size. The LSY is positioned as the fuel saver here. Unremarkable in daily use, noticeably more reserved on the on-ramp than the V6 or V8.
Engine Weaknesses 4
Rare but catastrophic: crankshaft thrust bearing wears, crank walks axially. Engine replacement required. $7,000-$11,000.
Symptoms: Metallic clicking at idle, clutch engagement inconsistent, oil pressure fluctuates
Active coolant circuit valves fail under 50,000 miles. Codes P00B7 and P2681 in fault memory. Can cause overheating if ignored.
Symptoms: Check engine P00B7/P2681, temp rises sporadically, cooling fan runs constantly
The HPFP can fail past 120k miles. Extended crank times, rough idle, P0087/P0089 codes.
Symptoms: Long crank time, rough idle, power loss under load
Direct injection without port injection allows carbon deposits on intake valves. Walnut blasting recommended from 100k miles.
Symptoms: Power loss, rough idle, misfires in cold
Vehicle Weaknesses 7
Control valve body in 10-speed transmission can select wrong gear — recall for 2020-2021 models. Free valve body replacement.
Curtain airbags may not deploy correctly in a crash — mounting points defective. Recall with free rework.
Multiple 2022-2024 CT5-V Blackwings experienced rod bearing failures under 10,000 miles — manufacturing defect. All cases covered under warranty. Car and Driver long-term test car affected.
GM 10L80 automatic develops vibration and shudder at low speeds — torque converter clutch plate wears. Transmission fluid flush or torque converter replacement required.
Rear MRC dampers can lock up at maximum stiffness. Repair cost approximately $3,000 per shock for parts alone. Covered under warranty if within limits.
Digital instrument cluster shows black screen momentarily — restarts after a few seconds. Software issue, OTA update available.
Driver's side window regulator fails intermittently — window won't raise. Multiple documented cases, regulator replacement required.
