NHTSA ID Number: 10126957
Manufacturer Communication Number: PIP5245B
Summary
This Preliminary Information communication provides information to the technician on how to diagnose vehicles with various noises associated with four wheel drive operation. Before beginning any diagnosis it is imperative to review the Symptoms – Transfer Case in Service Information and perform the necessary inspections. In all cases the complaint vehicle should be compared to another like vehicle before beginning any repairs.
16 Affected Products
Vehicles
CHEVROLET | SILVERADO 2500 | 2015-2018 |
| CHEVROLET | SILVERADO 3500 | 2015-2018 |
| GMC | SIERRA 2500 | 2015-2018 |
| GMC | SIERRA 3500 | 2015-2018 |
SEOCONTENT-START
Bulletin No.: PIP5245B
Published date: 12/11/2017
PIP5245B Whine Noise Operating In 4wd
Models
| Brand: | Model: | Model Years: | VIN: | Engine: | Transmissions: | |
|---|---|---|---|---|---|---|
| from | to | |||||
| Chevrolet |
Silverado 2500/3500 | 2015 – 2018 | All *See Note | All *See Note | All | All |
| GMC | Sierra 2500/3500 | 2015 – 2018 | All *See Note | All *See Note | All | All |
*Equipped with 4WD
Supersession Statement
This PI was superseded to update Model Years. Please discard PIP5245A
Condition / Concern
Some customers may comment on various noises associated with 4wd operation.
Recommendations / Instructions
One of the many advantages of the new 2015 MY pick-ups is the cabin is quieter compared to previous model years. For that reason, when the vehicle is in 4WD mode (HI or Low), there may be some noticeable sound from the transfer case. This sound may be described as a whining. This sound can be described as being a very broad band frequency.
With the vehicle in 4WD mode, this sound will be present on both acceleration (30-40 mph) and deceleration. The sound will increase when driving on dry pavement in 4WD. It can also be identified since it disappears or reduces considerably in 2WD mode.
Before beginning any diagnosis it is imperative to review the Symptoms – Transfer Case in SI and perform the necessary inspections.
In all cases the complaint vehicle should be compared to another like vehicle before beginning any repairs.
This information applies to 2015 through 2018 model year vehicles listed above.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
SEOCONTENT-END
Bulletin No.: PIP5245B
Published date: 12/11/2017
To View or Download this Document Click Here
Bulletin No.: PIP5245A
Date: Feb-2016
To View or Download this Document Click Here
Bulletin No.: PIP5245A
Date: Feb-2016
To View or Download this Document Click Here
Bulletin No.: PIP5245
Date: Nov-2014
To View or Download this Document Click Here
Bulletin No.: PIP5245
Date: November, 2014
To View or Download this Document Click Here
- FlexFill squeezable pouch releases 2X more fluid with less effort for 3X faster filling vs. traditional bottle packaging
- Contains limited slip for optimal performance of the clutch pack, while also delivering 30% better protection against towing and heavy loads and 1.5X better gear wear protection
- Advanced full synthetic helps prevent noise and reduce chattering, while protecting gear teeth from wearing out prematurely
- High and low temperature protection ranges from -50F to 300F degrees for cold temperature fluidity and high temperature performance
- Fights rust and corrosion with corrosion inhibitors and safeguards against impurities, oxidation and thermal breakdown
- Extreme pressure additives deliver outstanding high pressure performance, load carrying capacity and durability for towing and hauling
- Daily protection gear lubricant helps prevent noise and chattering, while protecting gear teeth from wearing out prematurely
- Exceptional high and low temperature protection ranges from -15F to 410F for dependable year-round coverage
- Fights rust and corrosion with corrosion inhibitors and safeguards against impurities, oxidation and thermal breakdown
- Meets or exceeds API Services GL-5 and non-synchronized manual transmissions calling for GL-4
- Contains extraordinary anti-wear and lubricity agents, ensuring exceptional protection against wear and reducing drag
- Helps to control heat
- Incorporates Lucas cutting-edge additive technology derived from top-rated Lucas Heavy Duty Oil Stabilizer, the number one supplemental oil in the heavy-duty industry
- Available in 1 quart and 1 gallon bottle sizes
- Next-level performance with 4X better gear wear protection, 4X better extreme pressure protection and 60% better protection against towing and heavy loads
- Premium passenger car gear oil contains a limited slip friction modifier for optimal clutch pack performance and an extreme pressure additive for our best shock loading and high torque protection
- Patented FlexFill pouch is easy to use in compact spaces, releasing 2X more fluid with less effort for 3X faster filling vs. traditional bottle packaging
- Extended protection helps prevent noise and reduce chattering, while protecting gear teeth from wearing out prematurely
- Fights rust and corrosion with corrosion inhibitors and safeguards against impurities, oxidation and thermal breakdown
- Contains extraordinary anti-wear and lubricity agents, ensuring exceptional protection against wear and reducing drag
- Helps to control heat
- Incorporates Lucas cutting-edge additive technology derived from top-rated Lucas Heavy Duty Oil Stabilizer, the number one supplemental oil in the heavy-duty industry
- Available in 1 quart and 1 gallon bottle sizes
Last update on 2026-06-20 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.