Cadillac CT4
1st gen (2020–present)
Skip 2020, 2021. Prefer 2023, 2024 with documented service and closed recalls.
- ReliabilityMixedYear-sensitive
- Ownership cost$$Brand typical
- Insurance$$Moderate
- Repair difficultyModerateDealer or indie
- Typical lifespanLong if maintainedHistory matters
At a glance
- Worst years
- 2020, 2021
- Best years
- 2023, 2024
- Top failure
- 10-speed automatic internal damage
- Recommended tire
- Michelin Pilot Sport All Season 4
- Must check
- VIN recalls + PPI
Years to avoid
Skip 2020, 2021. Prefer 2023, 2024 with closed recalls and a clean PPI.
- LayoutRWD / AWD
- Charactersedan
Engines
Which powertrains hold up — and which to walk away from.
- Year-dependent
See years-to-avoid guide
All
Reliability swings by model year — use the linked guide for the full map.
Transmissions
- Mixed
Automatic (typical)
Most years
Confirm service history and software updates on used examples.
Ownership metrics
- Top failure theme
- 10-speed automatic internal damageWorst-year cluster.
- Safer window
- 2023, 2024Best years in the guide.
- Must check
- Recalls + PPINon-negotiable.
Factory tire sizes
| Size | Years / trims | Best all-season | Shop |
|---|---|---|---|
| 235/40R18 | Common OE Many trims |  Sporty all-season for CT4. | Live prices |
Recommended tires
Recalls
Run NHTSA by VIN
Multiple
Always confirm open campaigns before purchase.
Check recalls
Maintenance
| Interval | Service |
|---|---|
| Pre-purchase | Full PPI + recall check |
| Per schedule | Factory-spec fluid service |
Should you buy one?
Buy 2023, 2024. Skip 2020, 2021 unless history and pricing compensate.