Chevrolet SS · Convertible
6.2-liter Gen V V8 with direct injection — the LS3 evolved into modernity. 455 hp at 6,000 rpm. DI brings the characteristic cold-start tick. AFM (auto) or DFM (2019+) deactivates cylinders — same lifter risk as L99. Manual cars have AFM hardware but software-disabled, significantly fewer failures. PCV system and catch can reduce carbon deposits.
SS Convertible 6th gen — 455 hp top-down
The modern SS as a convertible. 455 hp LT1, 10-speed auto from 2019. AFM risk remains. For sunny cruises with V8 sound.
Engine Weaknesses 3
Same as L99: automatics heavily affected, manuals (AFM disabled) much less. Range disabler (~$200) or AFM delete (~$2,500).
Symptoms: Tick-tick-tick from valvetrain, misfires, check engine light
When collapsed lifter is not caught in time, it destroys the camshaft. GM reports increasing failure rates.
Symptoms: Progressive clattering, misfires, metal in oil
DI prevents fuel from cleaning intake valves. PCV oil vapors deposit. Catch can as prevention.
Symptoms: Power loss, rough idle at high mileage
Vehicle Weaknesses 9
EPS system can fail suddenly. Heavy steering without warning. Software update or module replacement.
The 6th gen has even smaller windows than the 5th. Consumer Reports: worst sporty car for visibility.
Torque converter clutch material contaminates fluid. TSB 18-NA-355 recommends flush with Mobil 1 Synthetic LV ATF HP. Class action.
MagneRide dampers can leak magnetic fluid past 50k miles. Noticeable comfort loss, vehicle pulls to one side.
Rear differential develops whine at 25–50 mph. Often caused by incorrect diff fluid.
Temperature blend door actuator fails — A/C blows only hot or only cold on one side.
Chevrolet Infotainment 3 freezes, black screen. Software updates sometimes help.
Like all GM sports cars: thin clear coat, visible orange peel, early stone chips. PPF recommended.
NPP exhaust valves or heat shields rattle at 1,500–2,500 rpm. Widespread forum topic.
