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.
2021 Cadillac CT6 problems
No complaints are listed for the 2021 Cadillac CT6. NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as CADILLAC CT6.
At a glance
- Complaints
- 0
- With crash
- 0
- With fire
- 0
- With injury (complaints)
- 0
- Injuries
- 0
- Deaths
- 0
- Recalls
- 0
- Do not drive recalls
- 0
- Park outside recalls
- 0
- Recall potential units (maximum)
- Unavailable
- Investigations
- 0
- Open investigations
- 0
- Manufacturer communications
- 342
Complaints per 100k sold unavailable. No sales source is available for this record.
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
0 recalls.
Investigations
0 investigations; 0 open.
Manufacturer communications
342 manufacturer communications.
| System | Count |
|---|---|
| EQUIPMENT | 94 |
| UNKNOWN OR OTHER | 79 |
| ELECTRICAL SYSTEM | 71 |
| ENGINE AND ENGINE COOLING | 60 |
| ENGINE | 33 |
| POWER TRAIN | 32 |
| WHEELS | 30 |
| STRUCTURE | 14 |
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.
11036392
Date: 2026-08-20. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
11035340
Date: 2026-07-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
PI to help diagnose A/C concern
11034769
Date: 2026-06-23. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
11032763
Date: 2026-05-11. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
11032764
Date: 2026-05-11. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
Pi created to provide GM dealers with information on gathering information for projection issue
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.
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.
- NHTSA's complaints API and bulk file list no complaint for this make, model and model year in this data build.
Other names NHTSA uses
None listed.
Matched NHTSA models
| NHTSA model label | Complaints |
|---|---|
| CT6 | 0 |
Same model, other years
Other Cadillac models, 2021
- Escalade: 72 complaints
- Escalade ESV: 71 complaints
- CT5: 29 complaints
- XT6: 18 complaints
- Escalade NA: 17 complaints
- XT5: 17 complaints
- XT4: 12 complaints
- CT4: 7 complaints
Sources
Get this record as JSON
The free rate-limited demo needs no key.
curl "https://api.theusedcarindex.com/v1/demo/vehicle_risk?make=Cadillac&model=CT6&year=2021"Paid endpoint: https://api.theusedcarindex.com/v1/vehicle_risk. MCP endpoint: https://api.theusedcarindex.com/mcp.