2023 Cadillac CT5 Service and Repair Manual

This factory service and repair manual for the 2023 Cadillac CT5 is built around this exact year, engine and trim combination, covering the 2.0L L4 (VIN K, LSY), the 3.0L V6 (VIN W, LGY), and the supercharged 6.2L V8 (VIN 6, LT4) with the torque values and procedures Cadillac published specifically for this generation of CT5, not a figure borrowed from an earlier or later model year.

Engines covered

• 3.0L V6 (182 cu in) — DOHC, turbocharged, gasoline
• 6.2L V8 (376 cu in) — DOHC, supercharged, gasoline
• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Luxury
• Premium Luxury
• Sport
• V
• V Blackwing

Known issues on the 2023 CT5. One recall is on federal record for this model year, covering the lighting control module software: the daytime running lights may fail to deactivate when the headlights are on, producing glare that reduces visibility and increases the risk of a crash. Owners have filed 11 complaints for the year. The factory diagnostic and repair procedures behind that system are here.

Whether you're tracing a DRL fault through the lighting control module or working through routine service on the turbocharged V6 or supercharged Blackwing V8, it keeps you on the OEM procedure and the correct specification for your specific 2023 CT5.