Cadillac XT4 Diesel Service Update Issued For Mass Air Flow Drift Issue
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General Motors has started a Service Update for certain examples of the 2020 to 2022 model year Cadillac XT4 compact luxury crossover over an issue related to the available diesel engine’s mass airflow sensor.
The problem: in affected vehicles, the engine control module (ECM) may be unable to properly detect so-called “drift” in the mass airflow sensor signal, causing the malfunction indicator lamp to illuminate on the vehicle’s dashboard.
The hazards: this problem can lead to the vehicle’s malfunction indicator lamp, often referred to as an engine light, to illuminate on the dash. This will not lead to an immediate mechanical problem with the engine and does not pose a safety hazard to vehicle occupants, however customers will want to have the service update performed so the engine light no longer stays on.
The fix: dealers will be instructed to reprogram the engine control module. These repairs will be performed at no cost to the vehicle owner.
Affected components: mass airflow sensor, engine control module.
Affected vehicles:
Number of affected vehicles: it’s not clear how many units are affected by this problem. Only European-spec Cadillac XT4 models equipped with the 2.0L LSQ diesel engine are affected by this action.
Owners should: GM will notify owners of affected vehicles and instruct them to make an appointment with their dealer. Owners that are unsure whether or not their vehicle is affected by this service bulletin can reach out to GM directly with any questions or concerns they may have using the Service Update number and contact information included below.
Contacts:
- GM Service Update number: N222358700
- Cadillac Customer Service: 1-800-333-4223
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Too bad this diesel is not sold in the USA. European motorists are 10x’s smarter than US motorists.
Wrong.
Europeans actually don’t like small diesels because they’re slow. They’re seen as stingy over there. European highways tend to be faster than US roads, and they don’t care about torque.
The reasons why they drive diesels are: 1. European governments tax diesel significantly less. In Europe fuel taxes exceed the actual price of the fuel, compared to ~10% in the US.
2: Europe has weaker emissions standards than the US. This is why VW, Mercedes, and FCA had to cheat in the US. In particular, they’re allowed 2.6x the amount of NOx/km vs US, 3.4x the amount of HC, and 1.6x the amount of PM.
WHY IS THE CADILLAC XT4 DIESEL NOT SOLD IN CANADA IT SEEMS THE CUSTOMER HAS NO SAY AT ALL ETC,I WOULD BUY THE XT4 DIESEL OR IMPORT ONE FROM EUROPE ETC.