How to replace the rear body control module (BCM) in the end gate on Buick Rainier?

First take out the trim panel from the end gate to reach the rear body control module (BCM). Locate and unscrew the two fasteners holding the rear BCM to the end gate then detach all its electrical connections. Insert the new rear BCM into the end gate and link all electrical connectors to the module. Secure the rear BCM using its two mounting screws when you put them back into position at the end gate slot. Tighten them to 2.5 N.m (22 lb in). Refasten the trim panel into its original position on the end gate.

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Buick Rainier Body Control Module Part Number: 19370406
$159.17 MSRP: $321.16
You Save: $161.99 (51%)
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Product Specifications
- Other Name: Module Assembly, Body Control; Module, Body Multi Function Electric Computer; Module, Door Lock Remote Control Inside
- Replaces: 09352135, 15065293, 15122670, 9352135, 15114669, 19369360
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Buick Rainier | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS

Buick Rainier Body Control Module

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Among the most important parts, the Body Control Module (BCM) is a part that represents efficiency and durability in the models of Buick Rainier, produced between 2004 and 2007. This intricate BCM is in charge of electrical operations of the Rainier and control of such important aspects as comfort, lights, and electrical/mechanical functions. Being an interface, the Body Control Module is useful in establishing an efficient flow of communication between most of the car computers through the vehicle bus making functions like door locking and adjustments to interior lighting safe and efficient. The Rainier comes in CXL and CXL Plus models, which deal with the BCM's central control system to harmonise the running of various electronics to create an enjoyable, frictionless drive. It is, however, crucial to note that Body Control Module is known to be compatible with the 4.2L Vortec I6 and the 5.3L Small-block V8, one of the reasons why the manufacture offers massive performance as well as sturdy build. Protection is a priority of the Rainier, and the BCM designs integrates options such as GM's StabiliTrak; an electronic stability system, and things like side curtain airbags that was instrumental in giving the 2007 model of Rainier excellent side impact ratings as considered by NHTSA. In conclusion, the Body Control Module can be described as a reliable, high-performance automotive product that is or greatest value and has a direct and positive impact on the vehicle, thus proving to be essential to Buick Rainier.

Buick Rainier Body Control Module Parts Questions & Experts Answers

Body Control Module
19370406
Q: How to replace the rear body control module (BCM) in the end gate on Buick Rainier?
A:
First take out the trim panel from the end gate to reach the rear body control module (BCM). Locate and unscrew the two fasteners holding the rear BCM to the end gate then detach all its electrical connections. Insert the new rear BCM into the end gate and link all electrical connectors to the module. Secure the rear BCM using its two mounting screws when you put them back into position at the end gate slot. Tighten them to 2.5 N.m (22 lb in). Refasten the trim panel into its original position on the end gate.