PIC5322C

File in Section:
Service Bulletin
-
Bulletin No.:
PIC5322C
Date:
May, 2013
PRELIMINARY INFORMATION
Subject:
Normal Characteristic - Heated Seat Operation After Performing A Remote Vehicle
Start (RVS)
Models:
2010 - 2013 Buick LaCrosse
2011 - 2013 Buick Regal
2010 - 2013 Cadillac SRX
2010 - 2013 Chevrolet Camaro, Equinox
2011 - 2013 Chevrolet Cruze, Volt
2013 Chevrolet Malibu
2010 - 2013 GMC Terrain
This PI was superseded to update models and model years. Please discard PIC5322B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Customer concerns consist of two different complaints
Complaint A:
When a customer enters the vehicle ″after″ a RVS event, they notice the heated seat indicators lights are NOT
functioning. This is leading the customer to think that their heated seats are not being enabled.
Complaint B:
When a customer enters the vehicle ″after″ a RVS event, the heated seats are NOT up to operating temperature
when they enter the vehicle.
Recommendation/Instructions
Resolution for Complaint A:
Although the heated seat will be functioning, this is ″normal operation″ during a RVS event. The ECC is not in a
complete wake up state in RVS mode, therefore the LED’s will not be enabled.
Resolution for Complaint B:
During a cold soaking below 32 deg (overnight) the seat is NOT going to get ″hot″ in the 10 minutes or less that the
customer has the vehicle in remote start. This is due to the fact that the heating element is not in direct contact with
the seat surface while the seat is unoccupied, and the foam below the heater is full of cold insulating air which takes
time to heat up. The remote start operation will reduce the seat warm up time once the customer sits in the seat.
Important: The performance of the heater (during RVS event) is going to be reduced while the seat is cold and
unoccupied.
Note: During a RVS request from the customer, the heated seat operation is determined by a BCM calculation
based off Outside Air Temperature and will only allow RVS "heated seat" operation below 50° F OAT.
Customer Information
Please communicate to the customer this condition is a normal operating characteristic of their vehicle. It will not
impact the designed performance or reliability of the vehicle. Please share this information with the customer,
including a copy of this message.
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.