2021 Cadillac CT4 problems and complaints

Owners have filed 7 complaints with NHTSA about the 2021 Cadillac CT4. The most-reported areas: Engine (3), Fuel/Propulsion System (2), Vehicle Speed Control (1).

Key takeaways

  • 7 owner complaints on file with NHTSA.
  • 0 involve a crash, 0 a fire, 0 reported injuries.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Engine343%
Fuel/Propulsion System229%
Vehicle Speed Control114%
Power Train114%
Suspension114%
Steering114%
Electrical System114%
Forward Collision Avoidance114%
Tires114%

One complaint can name several components, so shares add up to more than 100%.

NHTSA 5-Star crash ratings
VersionOverallFrontSideRollover
2021 Cadillac CT4 4 DR AWDNot ratedNot ratedNot ratedNot rated
2021 Cadillac CT4 4 DR RWDNot ratedNot ratedNot ratedNot rated

Latest complaints, as filed

Owner-written and unverified by NHTSA.

Vehicle Speed Control,engine,fuel/Propulsion System - filed 2026-06-29

While driving at highway speeds on the freeway in my 2021 Cadillac CT4-V, the vehicle experienced a sudden, catastrophic loss of propulsion. Without warning, the transmission dropped out of gear as if it were in neutral. I completely lost the ability to accelerate, creating an immediate, life-threatening hazard as I wa...

Fuel/Propulsion System - filed 2026-05-31

Check engine light for P1467 on a 2021 CT4 V. This is for a "purge pump underspeed" issue. The issue is known on CT4 Cadillacs and has an active recall out: N242441120 Evaporative Emissions Purge Pump. This recall is only for the 2.0, LSY engines, but the much more uncommon 2.7, L3B engine in my car uses the same part...

Power Train - filed 2025-08-27

There is a known issue with hesitation and hard shifting on my vehicle. According to the gm bulletin that was released I believe in may of 25 my year, make and model has a known issue where the transmission control valve may stick or wear causing jerking and shifting issues and could cause a possible crash. According t...

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More for the 2021 Cadillac CT4

Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.