File in Section:

Service Bulletin

Bulletin No.:
Date:

PIT5320
September, 2014

PRELIMINARY INFORMATION
Subject:

Navigation Voice Prompts Choppy Distorted or Garbled

Models:

2014-2015 Buick LaCrosse, Regal
2013-2015 Cadillac ATS, SRX, XTS
2014-2015 Cadillac CTS Sedan VIN A
2014 Chevrolet Silverado 1500
2014-2015 Chevrolet Corvette, Impala VIN 1
2014 GMC Sierra 1500
2015 Cadillac Escalade models
2015 Chevrolet Colorado, Silverado, Suburban, Tahoe
2015 GMC Canyon, Sierra, Yukon models
Equipped with Navigation Radio

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern
Some customers may comment that the navigation voice feedback is choppy, distorted, or garbled.

Recommendation/Instructions
If this concern is encountered, press Settings, Voice, Audio Feedback Speed, and verify speed is set to Medium
(default) or Slow. When set to Fast, the voice guidance may sound choppy, distorted, or garbled.

Warranty Information
For vehicles repaired under warranty use:
Labor Operation

Description

Labor Time

3480118*

Change The Voice Prompt Speed Setting

0.2 hr

* This is an unique labor operation for bulletin use only. This will not be published in the Labor Time Guide.

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.