WenmarOpen by Wenmar Pro

Service bulletin PIT5499A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10156906
Published by NHTSA2019-04-08
Manufacturer's numberPIT5499A
Manufacturer's date2019-03-04
NHTSA componentSERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP; SERVICE BRAKES, HYDRAULIC

NHTSA's summary

This Preliminary Information communication provides information to the technician that vehicles may have an Antilock Braking System or Malfunction Indicator Lamp illuminated. Also Low Brake Fluid lamp on with the master cylinder fluid level is full or a Service Trailer Brake message on the Driver Information Center. Technician may find codes C0035, C0040, C0045, C0050, C0055, C0267, U0121, U0415 or U0420. Technician will need to inspect the Electronic Brake Control Module connector for water intrusion or corrosion on the terminals. If either is found, replace the EBCM and replace the affected terminals. Also remove the tape from the conduit leading to G400 between the main harness and the ground lug.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Anti-lock brakes

Trouble codes named

C0035, C0040, C0045, C0050, C0055, C0267, U0121, U0415, U0420

Vehicles listed
CHEVROLET COLORADO2015, 2016
CHEVROLET COLORADO2019
GMC CANYON2015, 2016
GMC CANYON2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
PIT5569B2022-08-15. Service bulletin. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
PIT5696F2022-05-16. Service bulletin. This preliminary information discusses potential for a code C0010.5A to store in the brake controller which appears to be setting falsely or is induced by the customer.
PIT3271J2019-12-09. Service bulletin. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
PIT54992017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician that vehicles may have an Antilock Braking System or Malfunction Indicator Lamp illuminated. Also Low Brake Fluid lamp on with the master cylinder fluid level is full or a Service Trailer Brake message on the Driver Information Center. Technician may find codes C0035, C0040, C0045, C0050, C0055, C0267, U0121, U0415 or U0420. Technician will need to inspect the Electronic Brake Control Module connector for water intrusion or corrosion on the terminals. If either is found, replace the EBCM and replace the affected terminals. Also remove the tape from the conduit leading to G400 between the main harness and the ground lug.