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
ChevroletSILVERADO 35002020
ChevroletSILVERADO 35002019
ChevroletSILVERADO 35002018
ChevroletSILVERADO 35002017
ChevroletSILVERADO 35002016
ChevroletSILVERADO 35002015
ChevroletSILVERADO 35002014
ChevroletSILVERADO 35002013
ChevroletSILVERADO 35002012
ChevroletSILVERADO 35002011
ChevroletSILVERADO 35002010
ChevroletSILVERADO 35002009
ChevroletSILVERADO 35002008
ChevroletSILVERADO 35002007
ChevroletSILVERADO 35002006
ChevroletSILVERADO 35002005
ChevroletSILVERADO 35002004
ChevroletSILVERADO 35002003
ChevroletSILVERADO 35002002
ChevroletSILVERADO 35002001
ChevroletSILVERADO 35002000
ChevroletSILVERADO 45002023
ChevroletSILVERADO 45002022
ChevroletSILVERADO 45002021
ChevroletSILVERADO 45002020
ChevroletSILVERADO 45002019
ChevroletSILVERADO 55002023
ChevroletSILVERADO 55002021
ChevroletSILVERADO 55002020
ChevroletSILVERADO 55002019

Data coverage →