Bulletin No.: PIT6000
Published date: 04/19/2023

Preliminary Information
PIT6000 Service Drivers Assist Message with DTC: B2BA1
Models
Brand:
Cadillac

Model:
Escalade Models

Model Years:

VIN:
from to

Engine: Transmissions:

2021 - 2023

All

All All

All

2023

All

All All

All

Chevrolet Silverado 1500 New (RPO J22, VIN Digit 5 = A or D) 2022

All

All All

All

Chevrolet Suburban

2023

All

All All

All

Chevrolet Tahoe

2023

All

All All

All

GMC

Sierra 1500

2023

All

All All

All

GMC

Sierra 1500 New (RPO J22, VIN Digit 5 = H or U)

2022

All

All All

All

GMC

Yukon Models

2023

All

All All

All

Chevrolet Silverado 1500

Involved Region or Country North America
Additional Options (RPO)
Condition
Cause

UKL
Some customers may experience a "Service Drivers Assist" message with a current
DTC: B2BA1
The cause of this concern could be the K179 Map Module Information is out of date
due to a lack of vehicle operation

Correction:
Note: This only e ects vehicles that only have the DTC: B2BA1. If the vehicle has other map module codes, they
will have to be addressed rst. Only continue with is PI if you only have DTC: B2BA1
The map module used for Super Cruise uses a LiDAR-scanned map database, which governs system use and
enables it only in areas where appropriate road conditions are detected.
Map versions/updates and GPS enhancement data are periodically downloaded to the vehicle through Map Over
The Air Updates (MOTA).
These updates are delivered to the vehicle in small packets of data only when the vehicle is operating.
This is the only way the latest map versions can be updated.
Map version updates are no longer done by hooking directly to the map module via RS232 Cable or SPS
programming as previous models.
If the customer does not drive the vehicle often or does a lot of short trip driving the map module does not get a
chance to fully update.
After a certain time frame the map module will be out of date due to this short trip driving and the " Service
Drivers Assist" will appear on the DIC and the DTC: B2BA1 will be set as a current code in the K179 Map module.
In order to correct this concern, please perform the following steps:

1) Make sure the K179 Map Module has the latest calibrations using SPS.
2) Park the vehicle outside away from buildings so the vehicle can obtain a good OnStar Signal. The vehicle will
need to stay outside running to update the map version. The module will not update when the vehicle is o .
3) Start the vehicle and allow the vehicle to idle for 3 hrs., SEE NOTE BELOW. After 3 hrs., turn the vehicle o and
allow the vehicle to set with the ignition o for 1 hour.
Note: This vehicle is equipped with a auto shut down mode. If the vehicle is left in run mode with the vehicle
parked, it will automatically shut o in 60 minutes depending on if the remote key fob is left in the vehicle. You
can disable this feature for one key cycle by holding the start/stop button for 10 seconds longer, when starting
the vehicle, until a message appears on the DIC that reads " Auto Shutdown O ". The truck will run until you
manually shut it o .
4) After 1 hour, check and see if DTC: B2BA1 has cleared or gone to history. If so, make sure there is no DIC
messages and the Supercruise operates normally. If the DTC is still current, repeat step 3.
5) Advise the customer on how the map versions get updated and if the vehicle is not driven often enough the
message may return again.

Warranty Information
For vehicles repaired under the warranty, use the following labor operation. Reference the Applicable Warranties
section of Investigate Vehicle History (IVH) for coverage information.
Labor operation
2889328

Description
Check DTC's, Update Map Module and Clear DTC

Version History
Version
Modi ed

1
04/19/2023 - Created on.

© 2023 General Motors. All Rights Reserved.

Labor Time
0.3 Hrs.