Service bulletin PIP4374C

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)
Type	Service bulletin
NHTSA id	10154573
Published by NHTSA	2019-03-18
Manufacturer's number	PIP4374C
Manufacturer's date	2018-12-07
NHTSA component	ELECTRICAL SYSTEM:WIRING

NHTSA's summary

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.

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

Electrical system, Wiring and fuses

Vehicles listed
CHEVROLET TAHOE	2008
GMC YUKON	2008

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
100089005G	2019-05-13. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
100089005H	2019-03-18. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
10-00-89-005C	2018-06-04. Service bulletin. This informational bulletin is a revision for 10-00-89-005B to add the 2014 model year and labor codes.
10-00-89-005E	2018-05-21. Service bulletin. 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.
13-08-116-001	2018-04-16. Service bulletin. This technical bulletin provides a procedure on suspected tampering due to aftermarket ALDL or DLC interface devices causing multiple issues.
100089005D	2017-12-22. Service bulletin. This warranty informational bulletin advised the technician that when performing a wiring repair, more information is required.
10-08-42-001D	2017-08-15. Service bulletin. This technical bulletin provides a procedure to check the headlamp wiring connector and replace if damaged.
PIP4525D	2017-08-15. Service bulletin. 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.
PIT5184	2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted activation, OnStar unwanted activation, and cruise control inoperative. Technician should inspect for a short to ground on the steering wheel near the Supplemental Inflatable Restraint coil connector X2 and make necessary repairs to any shorted circuits and then position the wiring.
PIT5184A	2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted activation, OnStar unwanted activation, and cruise control inoperative. Technician should inspect for a short to ground on the steering wheel near the Supplemental Inflatable Restraint coil connector X2 and make necessary repairs to any shorted circuits and then position the wiring.