The Used Car Index

2020 Cadillac CT4 problems

NHTSA lists 8 complaints for the 2020 Cadillac CT4, 0 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.

Data build 2026-10-08.

NHTSA lists this vehicle as CADILLAC CT4.

At a glance

Complaints
8
With crash
0
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
4
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
740,108
Investigations
1
Open investigations
0
Manufacturer communications
888

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
ENGINE337.5%
POWER TRAIN225.0%
SERVICE BRAKES225.0%
AIR BAGS112.5%
FUEL/PROPULSION SYSTEM112.5%
UNKNOWN OR OTHER112.5%
Top subsystems
SystemSubsystemComplaints

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
loss of control450.0%0.94
fluid or fuel leak112.5%0.98
mechanical failure112.5%0.63
restraint or airbag112.5%0.99
visibility or lighting112.5%0.85
Severities
LabelCountShare of taggedMean confidence
moderate675.0%0.86
low225.0%0.73

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 8 tagged complaints of 8 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

4 recalls.

25V148000

Date: 2025-03-06. Systems: POWER TRAIN.

Defect: 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.

Consequence: Wheel lock-up while driving increases the risk of a crash.

Remedy: 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.

Do not drive: No. Park outside: No.

22V903000

Date: 2022-12-08. Systems: EXTERIOR LIGHTING.

Defect: 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 M (excerpt)

Consequence: DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash. (excerpt)

Remedy: 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 prev (excerpt)

Do not drive: No. Park outside: No.

21V611000

Date: 2021-08-05. Systems: AIR BAGS.

Defect: 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.

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

Remedy: 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.

Do not drive: No. Park outside: No.

20V588000

Date: 2020-09-24. Systems: SERVICE BRAKES.

Defect: General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.

Consequence: If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.

Remedy: GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.

Do not drive: No. Park outside: No.

Investigations

1 investigations; 0 open.

PE21010

Opened: 2021-04-09. Closed: 2023-08-24.

Air Bag Malfunction

On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models

Systems: AIR BAGS.

Linked campaign numbers: None listed.

Manufacturer communications

888 manufacturer communications.

Communications by system
SystemCount
EQUIPMENT245
ELECTRICAL SYSTEM230
UNKNOWN OR OTHER139
POWER TRAIN116
ENGINE AND ENGINE COOLING113
ENGINE72
WHEELS47
STRUCTURE37

11037555

Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.

11037550

Date: 2026-09-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering

11037319

Date: 2026-09-08. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This PI advises of a procedure for a Service Door Latch System message with No Related DTCs

11037253

Date: 2026-09-04. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

11035351

Date: 2026-07-24. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.

11035340

Date: 2026-07-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

PI to help diagnose A/C concern

11032952

Date: 2026-05-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.A

11032955

Date: 2026-05-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

The document advise technicians after an engine repair involving removal of the camshaft actuators, the vehicle may set p1101 P0172 and or stalls when taken off idle. The technician is instructed to verify the intake and exhaust camshaft actuators are installed onto the correct camshafts.

11031948

Date: 2026-04-25. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This Preliminary information communicates an issue with a replace or low FOB battery message

11030974

Date: 2026-04-01. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
CT48

Same model, other years

All model years | All Cadillac models

Other Cadillac models, 2020

Sources

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