How many recalls does the 2021 Cadillac Ct4 have?

4 open NHTSA safety recalls are on record for the 2021 Cadillac Ct4, alongside 12 owner complaints.

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2021 Cadillac Ct4 Recalls & Complaints

open safety recalls on record

Serious

12 owner complaints filed · Severity Index 0.00 · updated 2026-08-07

The recalls

Serious21V611000

Air Bags:Side/Window:Curtain

Air bags that do not deploy properly can raises the risk of injury in a crash.

Remedy & full details

Dealers will inspect both left and right-side roof rail air bags and reinstall the air bags, as necessary, free of charge. Owner notification letters were mailed on August 30, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212342780.

General Motors, LLC. (GM) is recalling certain 2020-2022 Cadillac CT4 and CT5 vehicles. The roof rail side-curtain air bags may not have been installed correctly, which could result in an improper air bag deployment during a crash.

Serious21V421000

Air Bags:Srs Malfunction Warning Lamp/Light

The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, raises the risk of injury.

Remedy & full details

The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.

General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.

Serious22V903000

Exterior Lighting:Lighting Control Module:Software

DRLs that do not deactivate as intended may result in a glare, reducing visibility, and raises the risk of a crash.

Remedy & full details

The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V-827.

General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Serious25V148000

Power Train:Automatic Transmission

Wheel lock-up while driving raises the risk of a crash.

Remedy & full details

Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.

General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission. The transmission may become damaged internally and cause the wheels to lock-up.

Complaint volume

Volume alone is not a fault rate — popular vehicles attract more reports. Read it next to the severity mix below.

What owners reported happened

0Crashes

0Fires

0Injuries

0Deaths

Across 12 complaints. Severity Index 0.00.

Severity Index weights each complaint's reported outcome (death ×10, injury ×4, fire ×3, crash ×2) and divides by total complaints. It measures how severe reports are, not how often faults occur.

What owners report most

Engine — 3 reports
Fuel/Propulsion System — 2 reports
Tires:Sidewall — 1 reports
Steering — 1 reports
Electrical System — 1 reports
Forward Collision Avoidance: Warnings — 1 reports
Suspension — 1 reports
Power Train — 1 reports
Vehicle Speed Control — 1 reports

What to do

Find your 17-character VIN on the driver's door jamb or the base of the windscreen.
Check it against NHTSA's official lookup at nhtsa.gov/recalls — the authoritative record for your exact car.
Book the repair with any franchised dealer. Safety recall work is free, with no time limit and regardless of who owns the car now.

Other model years

2020 (4) · 2021 · 2022 (2) · 2023 (1) · 2024 · 2025

Numbers in brackets are open recall campaigns for that year.

Questions

Does an open recall mean the car is unsafe to drive?

Not usually. NHTSA issues a "do not drive" or "park outside" advisory when a defect is dangerous enough to keep you out of the car — those are flagged Critical above. Everything else should be repaired promptly but is not an immediate stop-driving order.

Do I pay for recall repairs?

No. Federal law requires the manufacturer to fix a safety recall free of charge, including parts and labour, whether or not you are the original owner.

Why are there complaints but no recalls?

Complaints are unverified reports filed by owners. They can prompt an investigation, but many never become recalls — either the fault isn't safety-related or it isn't widespread.

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