Service Leveling System/Speed Limited Message Due to Aftermarket Modifications – 2021 Cadillac Chevrolet GMC

NHTSA ID Number: 10202399 Manufacturer Communication Number: PIT5854 Summary This Preliminary information communicates information on vehicle speed being limited due to aftermarket lower kit being installed on the vehicle.   Condition Some customers may comment on a Service Leveling System/Speed Limited message on DIC. Dealers may find no DTC’s present.   Cause This could be caused by …

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