Keyless door lock fob doesn’t work — GM vehicles

Fix for keyless door lock fob doesn’t work

GM has issued a service bulletin #PIT5288H to address Keyless door lock fob doesn’t work issue along with many other symptoms listed below. The service bulletin #PIT5288H applies to the models listed below.

Key fob doesn’t work and other symptoms covered by service bulletin #PIT5288H

•             Remote keyless entry (key fob) inoperative
•             Passive Entry and Start Inoperative
•             No Fob Detect Message on driver information center display
•             Service Tire Pressure System
•             No Audio
•             Touch Screen Inoperative
•             Radio and/or driver information center display blank
•             Steering Wheel Controls Inoperative
•             Service Stabilitrak message on driver information center display
•             Body / Chassis Communication trouble codes B3101, B144C, C0710, C0544, U1548, U1549, U154A, U0151, U0126, U0415, U0077, U0028 and/or U0029
•             Rear Power Windows Inoperative
•             Rear Wiper Inoperative
•             Dead Battery / No or slow crank
•             Service engine soon lamp and/or reduced power message with 5 volt reference 3 or APP codes P0106, P0107, P0697, P2122, P2123, P2127, P2128 and P2138

Models affected by service bulletin #PIT5288H

2015-2020 Cadillac Escalade
2014 Chevrolet  Silverado 1500
2015-2018 Chevrolet Silverado
2019 Chevrolet  Silverado LD
2019 Chevrolet  Silverado 2500/3500
2019-2020 Chevrolet Silverado 4500HD, 5500HD and 6500HD
2015-2020 Chevrolet Suburban
2015-2020 Chevrolet Tahoe
2014 GMC Sierra 1500
2015-2018 GMC Sierra Models
2019 GMC Sierra Limited
2019 GMC Sierra 2500/3500
2015-2020 GMC Yukon Models

Cause of keyless door lock fob doesn’t work

GM has discovered that all of these symptoms could be caused by a pinched dash harness. The pinch occurs between the left instrument panel-to-dash mounting bracket and the body. The pinch can be difficult to see if the harness is damaged. Make sure the harness can be moved freely away from the bracket to body interface.

Fix for Keyless door lock fob doesn’t work

Loosen the left instrument panel dash mounting bracket bolts and pull the harness free. Then open the harness and repair any damaged wires as necessary.

©, 2020 Rick Muscoplat