Home21-NA-124 · BUICK, CADILLAC, CHEVROLET, GEO, GMC
BUICK, CADILLAC, CHEVROLET, GEO, GMC

21-NA-124

Manufacturer communications

Publication date
2022-12-14
Received by NHTSA
2023-01-06
NHTSA record numbers
10228888

Manufacturer summary

Original wording in English

This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

NHTSA manufacturer communications ↗

Reported code forms

P0442P0455

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
GMCYUKON XL 25002007
GMCYUKON XL 25002006
GMCYUKON XL 25002005
GMCYUKON XL 25002004
GMCYUKON XL 25002003
GMCYUKON XL 25002002
GMCYUKON XL 25002001
GMCYUKON XL 25002000
GMCYUKON XL DENALI2003
GMCYUKON XL DENALI2002
GMCYUKON XL DENALI2001

Data coverage →