Service bulletin PIT5623A
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 | 10143766 |
| Published by NHTSA | 2018-08-20 |
| Manufacturer's number | PIT5623A |
| Manufacturer's date | 2018-07-18 |
| NHTSA component | SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP |
NHTSA's summary
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.
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
| CHEVROLET EXPRESS | 2018 |
|---|---|
| GMC SAVANA | 2018 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| PIT5569B | 2022-08-15. Service bulletin. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC. |
|---|---|
| PIT5058G | 2021-06-14. Service bulletin. 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. |
| PIT3271J | 2019-12-09. 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. |
| 18316 | 2018-12-10. Service bulletin. 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. |