# Service bulletin PIT5058G

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.

- Type: Service bulletin
- NHTSA id: 10197310
- Published by NHTSA: 2021\-06\-14
- Manufacturer's number: PIT5058G
- Manufacturer's date: 2021\-05\-25
- NHTSA component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

This Preliminary Information communication provides information to the technician about the operation and diagnostics of the Regular Production Option Code UJ1 brake warning pressure warning system. The technician can test the operation of the brake warning system. If the warning system does not function correctly, technician will need to inspect circuit 33 for a short to ground between X141 and the Instrument Panel Cluster terminal 14. Then inspect check circuit 33 for an open between X141 and the Instrument Panel Cluster terminal 14. Also technician should check male side of X141 circuit 33 with an ohm meter to ground and should be close to 0 ohms with engine off and key on. Start engine and circuit should go \(OL\) indicating that the flow switch opened. Then, turn the steering to the stop in pressure relief and verify that the circuit stays \(OL\) to check the operation of the pressure switch.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10197310-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10197310-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes, Anti\-lock brakes

## Vehicles listed

- 2009 to 2012 CHEVROLET EXPRESS
- 2014 to 2021 CHEVROLET EXPRESS
- 2013 CHEVROLET EXPRESS CUTAWAY
- 2008 CHEVROLET EXPRESS CUTAWAY VAN
- 2008 to 2021 GMC SAVANA

## Other bulletins for the same vehicles and component

- [PIT5569B](/bulletins/10217764.md), 2022-08-15, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U\*\*\*\* Byte 71 DTC.
- [PIT3271J](/bulletins/10168960.md), 2019-12-09, Service bulletin: WHEELS; SERVICE BRAKES, AIR:ANTILOCK. 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.
- [18316](/bulletins/10150566.md), 2018-12-10, Service bulletin: SERVICE BRAKES, AIR:DISC; ELECTRICAL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING. 18316 \- Customer Satisfaction Program. Certain 2018 model year Chevrolet Express and GMC Savana vehicles, equipped with 4 wheel disc brakes, may have a condition where when the right rear wheel is driven over rumble strips a vibration in the rear axle causes the right rear wheel speed sensor \(WSS\) to produce an erratic signal. The ABS, Stabilitrak and Traction Control lights will illuminate on the Instrument Panel and set ABS Diagnostic Trouble Code C0050 0F. The Service Stabilitrak and Service Traction Control message may also be shown on the Driver Information Center. ABS, Stabilitrak, and Traction Control functionality would not be available until the next ignition cycle. Dealers will reprogram the electronic brake control module \(EBCM\) with an updated calibration.
- [PIT5623A](/bulletins/10143766.md), 2018-08-20, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. This Preliminary information communicates if an intermittent c0050 Sym0f occurs on a van with dual rear wheels. Engineering is currently investigating concern and no repairs are to be made at this time.
- [PIT4648D](/bulletins/10112505.md), 2017-08-15, Service bulletin: ELECTRICAL SYSTEM:WIRING; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. This Preliminary Information communication provides information to the technician about vehicles that have a Antilock Braking System Malfunction Indicator Lamp on and or the service Stability message on. Technician may find Diagnostic Trouble Code C0045 and or C0050 found in the Electronic Brake Control Module. Technician will need to inspect the wires/crimps/terminals at the suspect Wheel Speed Sensor connector.
- [PIT\-4648\-B](/bulletins/10036515.md), 2011-03-26, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. CHEVROLET/GMC: ABS LIGHT AND/OR SERVICE STABILITY MESSAGE ON WITH DTC C0045 AND/OR C0050.. THIS CODE MAY BE CAUSED BY A WIRE PULLING OUT OF THE CRIMP ON A TERMINAL AT THE X413 OR X414 CONNECTOR. \*PE MODELS 2008\-2012 EXPRESS, SAVANA. UPDATED 12/10/12. \*PE
- [SB\-09\-05\-25\-002](/bulletins/10032294.md), 2010-03-01, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; ELECTRONIC STABILITY CONTROL \(ESC\). GMC/CHEVROLET: UNINTENTIONAL STABILITRAK/ABS ACTIVATION ON BANKED/CURVED ROAD. \(REPROGRAM ELECTRONIC BRAKE CONTROL MODULE\). THE STABILITRAK ACTIVATES ON BANKED CURVED ROADS DURING NORMAL DRIVING CONDITIONS FOR THE SURFACE. IMPACT TO BRAKING IS MINIMAL. \*PE
- [080525001](/bulletins/10024423.md), 2008-04-14, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. FALSE TRACTION CONTROL SYSTEM \(TCS\) ACTIVATION AT LOW SPEEDS, DTC C0710 SET \(REPROGRAM ELECTRONIC BRAKE CONTROL MODULE \(EBCM\)\) WITH RPO JL4 AND BUILT PRIOR TO AUGUST 13, 2007. \*NJ

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