General Motors has released a fix to address an issue related to the diesel particulate sensor in certain examples of the Cadillac XT4 crossover.
The problem: in affected vehicles, the diesel particulate filter sensor may indicate that a high soot loading has occurred.
The hazards: this problem could cause a diagnostic trouble code to set, resulting in reduced engine power. While this problem does not pose an immediate safety risk to the driver or vehicle occupants, it is obviously ideal for the engine to be operating as it was designed.
The fix: dealers will be instructed to update the engine calibration module. This will prevent the diesel particulate filter sensor from malfunctioning in the future.
- 2020 Cadillac XT4 (with 2.0L LSQ I-4 diesel engine only)
- 2021 Cadillac XT4 (with 2.0L LSQ I-4 diesel engine only)
Affected components: diesel particulate sensor, engine control unit.
Number of affected vehicles: GM did not say how many vehicles may be affected by this issue. The Cadillac XT4 with the 2.0L LSQ diesel engine is only sold in Europe, so all vehicles affected by this issue will be located in the EU or en route to the EU to be eventually be sold there.
Owners should: owners of affected vehicles should wait for a dealership to get in contact with them about making an appointment. This service update includes both vehicles that are still in dealer inventory as well as customer vehicles that return to the dealership for any reason. The service bulletin will not expire until the end of the involved vehicle’s New Vehicle Limited Warranty period. Owners of affected vehicles can also reach out to GM/Cadillac Europe directly using the contact information included below.
- GM recall number: N202324050
- Cadillac customer service number: 1-877-248-2080
- Cadillac Europe email: [email protected]