Squeak Chirp Noise from Front Axle in 2WD – 2019-2021 Chevrolet GMC Cadillac

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Bulletin No.: PIP5653K Published date: 04/15/2021
Preliminary Information
PIP5653K Squeak Chirp Noise From Front Axle In 2wd
Models

Brand:

Chevrolet Chevrolet GMC GMC
Chevrolet Chevrolet GMC
Cadillac

Model:

Silverado 1500 (New Model) Silverado 1500
Sierra 1500 (New Model) Sierra 1500
Tahoe Suburban Yukon Escalade

Model Years:

2019
2020 – 2021
2019
2020 – 2021
2021
2021
2021
2021

VIN:
from to
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Engine:

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Transmissions:

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Involved Region or Country
Additional Options (RPO)
Condition Cause

North America

SU4

Squeak or chirp noise in 2wd gone in 4wd. Under further investigation by engineering
Some customers may comment on a squeak or chirp noise in 2wd that goes away in 4wd. Some people may
also describe it as a metallic jingle, ringing, click or tick. Condition is easiest to duplicate in
warmer ambient temperatures, after approximately 30 miles of driving and is barely audible.
Technician may notice that the noise seems to be from the front left axle seal area. This
information only applies to the SU4 axle in pick up applications AND all utilities.
This condition does not affect durability and or operation of the vehicle but may be annoying to
some customers. Test drive the vehicle and confirm the noise is in fact as described above and
inform the customer that as soon as a repair is validated this document will be updated
communicating that repair to the dealer.
Warranty Information
For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference
the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
Labor Operation Description
Time
3087218* Test Drive For Noise Verification
.6 Hr.
*This is a unique labor operation and will not be published in the LTG.
Version History

Version

Modified
11
05/29/2019 – Created on
08/05/2019 – Updated to add repair direction 08/06/2019 – Updated WPC Process
10/01/2019 updated to reflect out of stock at WPC. 10/9/2019 Updated to resume WPC process.
03/26/2020 Updated to add 2020 Model years 05/15/2020 updated to reflect out of stock at WPC.
07/21/2020 Updated repair direction and parts list. 08/12/2020 Updated to reflect out of stock at
WPC. 08/24/2020 Updated to reflect parts back in stock at WPC
04/14/2021 Updated to instruct dealer that engineering is further looking into this.

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