# Service bulletin PIP4648C

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: 10114603
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIP4648C
- Manufacturer's date: 2015\-07\-14
- NHTSA component: WHEELS:LUGS/NUTS/BOLTS/STUDS

## NHTSA's summary

This Preliminary Information communication provides information to the technician that replacement transfer case halves will not be threaded. No additional thread tapping will be necessary to assemble the transfer case as the attaching metric bolts are self\-tapping. Drive the bolts into the new case and torque them to specification.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10114603-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10114603-0001.pdf)

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

## Components

Wheels, Wheel nuts and studs

## Vehicles listed

- 2009 to 2016 CADILLAC ESCALADE
- 2009 to 2015 CADILLAC ESCALADE ESV
- 2009 to 2013 CADILLAC ESCALADE EXT
- 2007 to 2013 CHEVROLET AVALANCHE
- 2015 to 2016 CHEVROLET COLORADO
- 2007 to 2011 CHEVROLET SILVERADO 1500
- 2014 CHEVROLET SILVERADO 1500
- 2007 to 2016 CHEVROLET SILVERADO 2500
- 2013 CHEVROLET SILVERADO 3500
- 2007 to 2016 CHEVROLET SUBURBAN
- 2007 to 2016 CHEVROLET TAHOE
- 2015 to 2016 GMC CANYON
- 2014 GMC SIERRA 1500
- 2007 to 2016 GMC SIERRA 2500
- 2007 to 2013 GMC SIERRA DENALI
- 2015 to 2016 GMC SIERRA DENALI
- 2007 to 2016 GMC YUKON
- 2007 to 2013 GMC YUKON DENALI
- 2007 to 2013 GMC YUKON DENALI XL
- 2007 to 2011 GMC YUKON XL
- 2012 to 2014 GMC YUKON XL
- 2015 to 2016 GMC YUKON XL

## Other bulletins for the same vehicles and component

- [120310003](/bulletins/10245772.md), 2023-12-04, Service bulletin: WHEELS:LUGS/NUTS/BOLTS/STUDS; SUSPENSION; TIRES; WHEELS; UNKNOWN OR OTHER. Diagnostic Tips for Difficult to Resolve Tire/Wheel Vibration Concerns
- [120310002A](/bulletins/10245771.md), 2023-12-04, Service bulletin: WHEELS; TIRES; UNKNOWN OR OTHER; WHEELS:LUGS/NUTS/BOLTS/STUDS. Proper Wheel Installation and Wheel Torque Techniques
- [120310002](/bulletins/10245770.md), 2023-12-04, Service bulletin: WHEELS:LUGS/NUTS/BOLTS/STUDS; UNKNOWN OR OTHER; TIRES; WHEELS. Proper Wheel Installation and Wheel Torque Techniques
- [PIT5530B](/bulletins/10137199.md), 2018-05-21, Service bulletin: WHEELS:LUGS/NUTS/BOLTS/STUDS. This Preliminary Information communication provides information to the technician about removing the tinnerman push nuts when installing the accessory Accessory 22" Wheels Regular Production Option Code \(SES, SEU, SEY, OR SEZ\) or production 22" wheels Regular Production Option Code \(RPT or SMI\) also during any service requiring wheel removal.
- [PIP5382H](/bulletins/10114069.md), 2017-08-15, Service bulletin: WHEELS:LUGS/NUTS/BOLTS/STUDS; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This Preliminary Information communication advises the technician that generation 5 engines with Regular Production Option Code L83, L86, or LV3 may have an oil consumption concern were one quart in 2000 miles is being used. Dealer will confirm oil level was properly checked per Owner\’s Manual, and check the bolt torque on the Valve Lifter Oil Manifold Assembly, before doing any repairs to the vehicle.
- [17\-NA\-126](/bulletins/10114027.md), 2017-08-15, Service bulletin: WHEELS:LUGS/NUTS/BOLTS/STUDS. This informational bulletin provides information on Non\-Design Intent Wheel Lock Nuts and Lug Nuts.
- [PIP5175A](/bulletins/10111972.md), 2017-08-15, Service bulletin: ENGINE AND ENGINE COOLING; WHEELS:LUGS/NUTS/BOLTS/STUDS; WHEELS; POWER TRAIN. This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose. If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump cover must be replaced and the 1234 clutch plates should be inspected for being distressed and repaired as needed.
- [PIP5175](/bulletins/10111969.md), 2017-08-15, Service bulletin: PARKING BRAKE; ENGINE AND ENGINE COOLING; WHEELS:LUGS/NUTS/BOLTS/STUDS; POWER TRAIN. This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose. If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump cover must be replaced and the 1234 clutch plates should be inspected for being distressed and repaired as needed.

JSON: [/v1/bulletins/10114603](/v1/bulletins/10114603)

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