2021 Cadillac CT5 Service and Repair Manual

The 2021 Cadillac CT5 was offered with two engines and four trim levels, paired below with the recalls and complaints on federal record for this model year.

Engines covered

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

Body styles covered

• 4-door sedan

Trims covered

• Luxury
• Premium Luxury
• Sport
• V

Known issues on the 2021 CT5. Four recalls are on federal record for this model year. The first covers the roof rail side-curtain air bags, which may not have been installed correctly and can result in an improper air bag deployment during a crash. The second covers the communications gateway module, which incorrectly processes a loss of communication with the sensing diagnostic module, causing the air bag malfunction indicator light to inconsistently illuminate. The third covers a lighting control module software issue in which the daytime running lights may not deactivate when the headlights are on, creating glare that reduces visibility and increases the risk of a crash. The fourth covers the 10-speed automatic transmission, which may become internally damaged and cause the wheels to lock up while driving. Owners have filed 21 complaints for the year.