The Used Car Index

2016 Cadillac CT6 problems

NHTSA lists 11 complaints for the 2016 Cadillac CT6, 3 of them mention a crash and 0 mention a fire. 2 complaints mention an injury, with 2 injuries and 1 deaths reported.

Data build 2026-10-08.

NHTSA lists this vehicle as CADILLAC CT6.

At a glance

Complaints
11
With crash
3
With fire
0
With injury (complaints)
2
Injuries
2
Deaths
1
Recalls
3
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
22,043
Investigations
0
Open investigations
0
Manufacturer communications
1,372

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
POWER TRAIN654.5%
AIR BAGS218.2%
ENGINE218.2%
UNKNOWN OR OTHER218.2%
FUEL/PROPULSION SYSTEM19.1%
SUSPENSION19.1%
WHEELS19.1%
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
mechanical failure654.5%0.68
loss of control327.3%0.62
restraint or airbag218.2%1.00
Severities
LabelCountShare of taggedMean confidence
moderate654.5%0.86
high218.2%0.98
low218.2%0.67
critical19.1%1.00

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 11 tagged complaints of 11 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.

3 recalls.

21V759000

Date: 2021-09-29. Systems: EXTERIOR LIGHTING.

Defect: General Motors, LLC (GM) is recalling certain 2016-2017 Cadillac CT6 vehicles. The Park/Position lights may be excessively bright. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence: The excessive brightness may affect the vision of other drivers, increasing the risk of a crash.

Remedy: Dealers will install right and left side in-line headlight jumper harnesses, free of charge. Owner notification letters were mailed November 3, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N162016079.

Do not drive: No. Park outside: No.

18V437000

Date: 2018-06-28. Systems: CHILD SEAT, SEATS.

Defect: General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CT6 vehicles. The inboard child seat anchorage bars may have had excess structural adhesive applied during assembly, which can interfere with the installation of a child seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."

Consequence: If the child seat cannot be attached correctly to the anchorage bar, there is an increased the risk of injury.

Remedy: GM will notify owners, and dealers will inspect, remove any excess adhesive, and apply anti-corrosion primer to the inboard child seat anchorage bars, free of charge. The recall began August 3, 2018. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 18228.

Do not drive: No. Park outside: No.

16V687000

Date: 2016-09-23. Systems: SEAT BELTS.

Defect: General Motors LLC (GM) is recalling certain model year 2016 Cadillac CT6 vehicles manufactured July 21, 2016, to July 22, 2016. The bolt that connects the front passenger seat belt webbing to the seat's anchor plate may be missing. Without the bolt, the seat belt webbing may detach from the seat anchor. (excerpt)

Consequence: If the seat belt webbing detaches from the seat anchor, the seat belt may not properly restrain the front seat passenger in the event of a crash, increasing the risk of injury. (excerpt)

Remedy: GM will notify owners, and dealers will replace the existing front passenger seat belt webbing anchor bolt, or install a bolt if it is missing, free of charge. The recall began on September 24, 2016. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 16035. Note: Owners are advised not to allow an occupant to sit in the front passenger seat until the (excerpt)

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

1,372 manufacturer communications.

Communications by system
SystemCount
EQUIPMENT508
ELECTRICAL SYSTEM288
ENGINE AND ENGINE COOLING161
ENGINE146
POWER TRAIN141
UNKNOWN OR OTHER78
EQUIPMENT ADAPTIVE/MOBILITY73
WHEELS50

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

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.

11035340

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

PI to help diagnose A/C concern

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.

11030091

Date: 2026-03-09. 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.

11030092

Date: 2026-03-09. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

11027689

Date: 2026-01-12. 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

11027601

Date: 2026-01-08. 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.

11025755

Date: 2025-11-20. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customera s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If

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
CT611

Same model, other years

All model years | All Cadillac models

Other Cadillac models, 2016

Sources

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