# Service bulletin PIE0628

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: 10195156
- Published by NHTSA: 2021\-06\-07
- Manufacturer's number: PIE0628
- Manufacturer's date: 2021\-04\-16
- NHTSA component: EXTERIOR LIGHTING; ELECTRICAL SYSTEM

## NHTSA's summary

This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp illuminated on Driver Information Center \(DIC\) with DTCs P3055, P3056 Set.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10195156-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10195156-9999.pdf)

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

## Components

Electrical system, Lighting

## Trouble codes named

P3055, P3056

## Vehicles listed

- 2020 to 2021 CHEVROLET BLAZER
- 2020 to 2021 CHEVROLET EQUINOX
- 2020 to 2021 CHEVROLET SILVERADO 1500
- 2020 to 2021 GMC SIERRA 1500

## Recalls for the same vehicles and component

- [2024060](/recalls/tc/2024060.md), 2024-02-01: Lights And Instruments
- [2023591](/recalls/tc/2023591.md), 2023-11-02: Lights And Instruments
- [2020304](/recalls/tc/2020304.md), 2020-07-03: Lights And Instruments
- [2019631](/recalls/tc/2019631.md), 2019-12-12: Electrical
- [19V888000](/recalls/nhtsa/19V888000.md), 2019-12-12: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

## Other bulletins for the same vehicles and component

- [N252515590](/bulletins/11027795.md), 2026-01-27, Service campaign: ELECTRICAL SYSTEM. Certain vehicles listed above, may have a condition in which the body\-to\-chassis ground strap may be corroded. Dealers will replace the ground strap.
- [07\-08\-42\-006U](/bulletins/11026022.md), 2025-12-03, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer \(Upfitter\), and/or turn signals flash fast after factory box removed.
- [23\-NA\-170](/bulletins/11024486.md), 2025-10-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
- [23\-NA\-201](/bulletins/11024378.md), 2025-10-21, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM; STEERING. This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp \(MIL\) Illuminated.
- [22\-NA\-161](/bulletins/11023368.md), 2025-09-27, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
- [24\-NA\-068](/bulletins/11019547.md), 2025-06-16, Service bulletin: ENGINE; ELECTRICAL SYSTEM. This service bulletin provides a procedure to test and replace the battery distribution fuse block if found the cause of the DTC and electric coolant pump inoperative.
- [21\-NA\-166](/bulletins/11019325.md), 2025-06-06, Service bulletin: EXTERIOR LIGHTING; STEERING. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
- [24\-NA\-229](/bulletins/11019017.md), 2025-06-03, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
- [25\-NA\-087](/bulletins/11017595.md), 2025-05-02, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- [23\-NA\-074](/bulletins/11017508.md), 2025-05-02, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES; ENGINE; STEERING. This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon \(SES\), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC, multiple DTCs.

JSON: [/v1/bulletins/10195156](/v1/bulletins/10195156)

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