2020 Rolls-Royce Cullinan: common problems
The maker issued 41 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 41
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 6.7 L · petrol · turbo · 12 cyl
- automatic, 8-speed
Drive: AWD
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Structure | 0 | 0 | 14 |
| Equipment | 0 | 0 | 12 |
| Electrical system | 0 | 0 | 9 |
| Engine and cooling | 0 | 0 | 9 |
| Engine | 0 | 0 | 4 |
| Exterior lighting | 0 | 0 | 3 |
| Steering | 0 | 0 | 3 |
| Powertrain | 0 | 0 | 2 |
| Fuel system | 0 | 0 | 1 |
| Latches, locks, linkages | 0 | 0 | 1 |
| Service brakes | 0 | 0 | 1 |
| Visibility | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
Comparison
What to check before buying
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- A small number of Rolls-Royce Cullinan (RR31) vehicles have been identified as having a potential issue…
A small number of Rolls-Royce Cullinan (RR31) vehicles have been identified as having a potential issue concerning the key recognition. Due to a software error, the vehicle key may not be reliably recognized inside the…
- A Rolls-Royce Phantom (RR11/12), Ghost (RR21/22) and Cullinan (RR31) vehicles have been identified as…
A Rolls-Royce Phantom (RR11/12), Ghost (RR21/22) and Cullinan (RR31) vehicles have been identified as having a potential issue concerning the 2 x coolant pipe connections at the cylinder head. The coolant pipe…
- The vehicles identified may potentially not transfer incoming voice audio during a telematics call due to…
The vehicles identified may potentially not transfer incoming voice audio during a telematics call due to the 3G network deactivation in the United States. Therefore, this will affect all Connected Services voice audio…
- Complaints of deposits, crystalisation or emulsification in the coolant expansion tanks
- The vehicle has been brought to the workshop with a complaint relating to the SoE function
- Engine MIL light is illuminated and fault 12BF08 Lambda probe, from meager to fat slow reaction
- Front brakes squeaking with low brake pressure during low speed maneuvering or parking, at ambient…
Front brakes squeaking with low brake pressure during low speed maneuvering or parking, at ambient temperatures of +5 to -5?C (41 - 23?F). If the brakes are cold, when the driver brakes for the ?rst time after the…
- Engine MIL light is illuminated and fault 12BF08 Lambda probe, from meager to fat slow reaction
- The glovebox has difficulty opening and closing, or in some instances will not open or close
- The engine oil level has not been determined for a long time
Please measure engine oil level. The check control message (ID 961) can occur on a new vehicle even with very low usage or relatively low operating hours.
- The check control message "It is possible to continue driving
Steering effort and/or steering behaviour is changed. Drive moderately" Is displayed in the central information display
- Jerking/Jolting when cornering or accelerating from low speeds and at low to medium loads
Complaint is also perceived as tension fluctuations.
NHTSA lists 41 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2020 Rolls-Royce Cullinan?
There are no owner complaints in the NHTSA data for this year; the data comes from 41 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2020 Rolls-Royce Cullinan?
NHTSA lists 41 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2020 Rolls-Royce Cullinan from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2020 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.