Research
2018 Cadillac CT6 Plug-in HybridRecalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 8 owner complaints for the 2018 Cadillac CT6 Plug-in Hybrid. Most complaints involve steering (3) and engine (3).
Combined MPG
—
No EPA rating found
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
8
Top: steering
Fuel cost / yr
—
No EPA estimate
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2018 Cadillac CT6 Plug-in Hybrid as of Nov 13, 2026.
Data from NHTSA Recalls API · synced Nov 13, 2026NHTSA vehicle page
Owner complaints by component
8 complaints filed with NHTSA · May 2018 – Feb 2024
- Steering3
- Engine3
- Power train2
- Suspension1
- Structure1
- Service brakes1
- Exterior lighting1
- Forward collision avoidance1
- Lane departure1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
By model year
Complaints for each CT6 Plug-in Hybrid model year we’ve synced.
Only one model year synced so far.
- Crashes reported
- 0
- Fires reported
- 0
- Injuries reported
- 0
- Deaths reported
- 0
Data from NHTSA Complaints API · synced Nov 13, 2026NHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Steering
3 reports
“Yes my car was sold to me with structural damages, and I was told any of this when I purchased it!!!!”
Engine
3 reports
“The brake makes a rattling and metal grinding sound, the dealership said nothing is wrong with the brakes, still problematic. The transmission shifts too hard. Dealer said nothing wrong. Yet cat kicks too hard.”
Power train
2 reports
“MY CADILLAC CT6 (2018) QUIT WORKING WHILE ON THE EXPRESSWAY. I WAS IN THE MIDDLE OF NO WHERE, IN GEORGIA. THIS MADE FOR A VERY DANGEROUS SITUATION AS THE CAR SUDDENLY LOST ALL POWER GOING TO THE WHEELS WHILE DRIVING AT APPROX. 75 MPH. I WAS BARELY ABLE TO GET AROUND TRAFFIC TO BE ABLE TO PULL OVER AS THERE WAS 0 POWER. WHEN THE TOW TRUCK FROM CADILLAC ARRIVED WE WERE TOLD WE WERE NOT ALLOWED TO RIDE IN THE TRUCK BECAUSE OF COVID. WE WERE MADE SIT IN THE RAIN IN 40 DEGREE WEATHER WHILE I SPOKE WITH MY HOME CADILLAC DEALER AS WELL AS THE NEAREST TO WHERE I WAS. BOTH DEALERS WERE EXTREMELY UNHELPFUL, MY CAR IS STILL UNDER FACTORY WARRANTY AND WAS JUST IN FOR TRANSMISSION WORK ABOUT A WEEK PRIOR (I'VE TAKEN THE CAR IN THREE TIMES FOR TRANSMISSION ISSUES AND IT STILL HAS SOMETHING WRONG WITH IT. I WAS TOLD BY BOTH CADILLAC DEALERS THAT THEY WOULD NOT HELP BECAUSE THEY NEEDED TO 'DIAGNOSE' THE CAR AND COULDN'T UNTIL FIVE DAYS LATER. I WAS OFFERED AN UBER RIDE IN A CITY THAT HAD 0 ZERO UBER, TAXI OR LIFT SERVICES. I WAS HUNG UP ON BY THESE PEOPLE, THEY WERE RUDE AND THIS WAS ON CHRISTMAS EVE. I HAD TO WALK TO A CAR RENTAL COMPANY AND PAY OVER $400 DOLLARS SO I COULD…”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 13, 2026
NHTSA 5-Star Safety Ratings
1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2018 Cadillac CT6 Plug-in Hybrid as of Nov 13, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 13, 2026Vehicle 12010
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
- Engine oil & filter5,000–10,000 mi
6–12 months - Tire rotation5,000–7,500 mi
Every oil change - Engine air filter15,000–30,000 mi
1–2 years - Cabin air filter15,000–25,000 mi
1–2 years - Brake fluid—
2–3 years - Coolant60,000–100,000 mi
5–10 years - Spark plugs60,000–100,000 mi
— - 12V battery—
3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
2018 CT6 Plug-in Hybrid questions
How many recalls does the 2018 Cadillac CT6 Plug-in Hybrid have?
0 recalls found in NHTSA data as of Nov 13, 2026.
What are the most common 2018 Cadillac CT6 Plug-in Hybrid problems?
Owners filed 8 complaints with NHTSA. The most-cited components are steering (3), engine (3), power train (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
Data from NHTSA & EPA · synced Nov 13, 2026