The service and repair manual for the 2018 Cadillac CT6 — 3.0L V6 and 3.6L V6 and 2.0L I4 engines, 5 trims. Matched to this exact model year, so the specifications and sequences are the ones Cadillac published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2018 |
|---|---|
| Engines | 3.0L V6 — DOHC, turbocharged 3.6L V6 — DOHC 2.0L I4 — 122 cu in, DOHC, turbocharged |
| Trims | Platinum Sedan 4-Door · Base Sedan 4-Door · Plug-In Sedan 4-Door · Luxury Sedan 4-Door · Premium Luxury Sedan 4-Door |
| Federal record | 2 recalls · 13 complaints · 665 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2018 CT6 manual
03 / ContentsSections in the manual
- Quick Lookups 1,099
- General Information 2,203
- Accessories & Equipment 10,591
- Heating, Ventilation & A/C (HVAC) 633
- Body & Frame 2,685
- Hybrid/Electric Powertrain 1,293
- Brakes 1,604
- Drivelines & Axles 138
- Restraints 460
- Electrical 5,735
- Steering 503
- Engine Mechanical 1,192
- Suspension 340
- Engine Performance 5,411
- Transmission 819
- First Pass 150
- Loosen 45
- Final Pass 270
04 / Known issuesRecalls on federal record for the 2018 CT6
- Seats — mid/rear assembly · 18V437000If the child seat cannot be attached correctly to the anchorage bar, there is an increased the risk.
- Seat Belts — rear/other · 18V673000If the child seat is not properly secured in the event of a crash, it can increase the risk of injur.
Owners have filed 13 complaints and Cadillac has issued 665 technical service bulletins for the 2018 CT6. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2018 CT6 manual
Is this manual specific to the 2018 CT6?
Yes. It is the OEM manual matched to the 2018 model year, covering the 3.0L V6 and 3.6L V6 and 2.0L I4 across the Platinum Sedan 4-Door, Base Sedan 4-Door, Plug-In Sedan 4-Door, Luxury Sedan 4-Door, Premium Luxury Sedan 4-Door trims. Specifications and procedure sequences are the ones Cadillac published for this year.
What 2018 CT6 problems does it help with?
2 recalls are on federal record for the 2018 CT6, covering seats, seat belts. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Cadillac dealers.
Does it include 2018 CT6 wiring diagrams?
Yes — the complete wiring diagrams for the 2018 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $49.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther CT6 years and 2018 Cadillac models
2020 CT6 · 2019 CT6 · 2017 CT6 · 2016 CT6 · all 5 years
2018 Cadillac ATS · 2018 Cadillac CTS · 2018 Cadillac Escalade · 2018 Cadillac Escalade ESV · 2018 Cadillac XT5 · 2018 Cadillac XTS · every 2018 model