# Service bulletin PIP4525D

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: 10113163
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIP4525D
- Manufacturer's date: 2013\-07\-30
- NHTSA component: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING

## NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that have an engine misfire, oil consumption, and/or a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P0300 and or P0301. Technician will need to inspect all of the spark plugs for oil fouling and cracks around the electrode porcelain. Technician will replace the spark plug if it is found cracked. If the \#1 spark plug is the only spark plug that is oil fouled and the electrode porcelain is not cracked, inspect the related valve seals to ensure that they are not damaged or missing, and repair as necessary. If the valve seals are fine, inspect the number 1 cam bearing for possible cause of this concern. Replace the bearing if needed. If the cam bearing has spun the engine will need to be replaced.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10113163-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10113163-0001.pdf)

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

## Components

Electrical system, Wiring and fuses

## Trouble codes named

P0300, P0301

## Vehicles listed

- 2009 CADILLAC ESCALADE
- 2009 CADILLAC ESCALADE ESV
- 2009 CADILLAC ESCALADE EXT
- 2008 to 2009 CHEVROLET SILVERADO 1500
- 2008 to 2009 CHEVROLET SILVERADO 2500
- 2008 to 2009 CHEVROLET TAHOE
- 2008 to 2009 GMC SIERRA 2500
- 2008 to 2009 GMC SIERRA DENALI
- 2008 to 2009 GMC YUKON
- 2008 to 2009 GMC YUKON DENALI
- 2008 to 2009 GMC YUKON DENALI XL
- 2008 to 2009 GMC YUKON XL

## Other bulletins for the same vehicles and component

- [130089008](/bulletins/10246630.md), 2023-12-11, Service bulletin: ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
- [100089005G](/bulletins/10159575.md), 2019-05-13, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
- [100089005H](/bulletins/10154629.md), 2019-03-18, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
- [PIP4374C](/bulletins/10154573.md), 2019-03-18, Service bulletin: ELECTRICAL SYSTEM:WIRING. This Preliminary Information communication provides information to the technician on were to look for a Possible Chaffed Wire. This could cause service engine soon light comes on and the vehicle is a no start.
- [10\-00\-89\-005C](/bulletins/10139026.md), 2018-06-04, Service bulletin: ELECTRICAL SYSTEM:WIRING; EQUIPMENT. This informational bulletin is a revision for 10\-00\-89\-005B to add the 2014 model year and labor codes.
- [10\-00\-89\-005E](/bulletins/10137237.md), 2018-05-21, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information.
- [13\-00\-89\-008A](/bulletins/10135394.md), 2018-05-07, Service bulletin: ELECTRICAL SYSTEM:WIRING. This informational bulletin communicates GM wiring repair strategy information.
- [13\-08\-116\-001](/bulletins/10133149.md), 2018-04-16, Service bulletin: ELECTRICAL SYSTEM:WIRING. This technical bulletin provides a procedure on suspected tampering due to aftermarket ALDL or DLC interface devices causing multiple issues.
- [13\-00\-89\-008](/bulletins/10130565.md), 2018-04-02, Service bulletin: ELECTRICAL SYSTEM:WIRING. This informational bulletin provides information for GM wiring repair.
- [100089005D](/bulletins/10126221.md), 2017-12-22, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty informational bulletin advised the technician that when performing a wiring repair, more information is required.

JSON: [/v1/bulletins/10113163](/v1/bulletins/10113163)

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