GM 84878473 Rear Object Alarm Sensor Wiring Harness

( Brand: Gm ), ( Manufacturer Part Number: 84878473 ), ( Part Type: Wiring Alarm Sensor Harness ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Gmc ), ( Year: 2021 2022 2023 ), ( Parts Included: Only Part Reference 3 On The Diagram Is Included )

Review GM Genuine Rear Object Alarm Sensor Wiring Harness fits ACADIA 2021–2023

The GM 84878473 Rear Object Detection Sensor Wiring Harness is a crucial component for the proper functioning of the rear object detection system in select GM vehicles. This wiring harness connects the rear object detection sensors to the vehicle's wiring network, enabling the system to detect objects near the rear bumper and alert the driver with visual and audible warnings.

Measuring approximately 20 inches in length, this wiring harness features a robust design with a high-quality insulation material to ensure reliable signal transmission between the sensors and the vehicle's electronic control unit (ECU). The wiring harness includes eight individual wires, each color-coded for easy identification and connection to the corresponding terminals on the ECU and the sensors.

The GM 84878473 Rear Object Detection Sensor Wiring Harness is designed to meet or exceed OE specifications, ensuring a perfect fit and seamless integration with the vehicle. It is engineered to withstand the rigors of automotive use, featuring high-temperature resistant materials and moisture-resistant coatings to protect against the elements.

Installation of this wiring harness is straightforward and can typically be completed in under an hour with basic hand tools. The harness comes with clear, easy-to-follow instructions to guide users through the installation process step-by-step. Additionally, the use of OE-quality connectors and terminals ensures a secure and reliable connection, reducing the likelihood of complications during installation.

By replacing a worn or damaged rear object detection sensor wiring harness with this genuine GM part, vehicle owners can restore the functionality of their rear object detection system and improve overall driving safety. This wiring harness is a must-have for anyone seeking to maintain their GM vehicle in top condition.

Pros and Cons of Buying GM 84878473 Rear Object Detection Sensor Wiring Harness

The GM 84878473 Rear Object Detection Sensor Wiring Harness is a crucial component for those looking to add or repair rear object detection systems in compatible General Motors vehicles. This accessory can enhance safety and convenience, but it's essential to consider its advantages and disadvantages before making a purchase.

1. Improved safety: Rear object detection can help drivers avoid collisions with obstacles while backing up, reducing the risk of damage to the vehicle and potential injury.

2. Enhanced convenience: Sensors can alert drivers to objects near their vehicle, allowing for easier parking and maneuvering in tight spaces.

3. Compatibility: This wiring harness is designed specifically for General Motors vehicles, ensuring a proper fit and function.

4. OEM (Original Equipment Manufacturer) quality: GM-branded parts are known for their reliability and durability, offering peace of mind for consumers.

5. DIY installation: Installing this wiring harness yourself can save money on labor costs, making it a cost-effective solution for enhancing safety and convenience.

1. Cost: While the benefits of rear object detection are substantial, the cost of purchasing and installing this wiring harness may be a deterrent for some consumers.

2. Complexity: Installing the wiring harness may require advanced knowledge of vehicle electrical systems and wiring, potentially making it a more challenging DIY project for some.

3. Dependence on other components: The rear object detection system relies on other sensors and components to function correctly, which may require additional repairs or replacements if they are not in good working order.

The GM 84878473 Rear Object Detection Sensor Wiring Harness offers numerous benefits, such as improved safety, enhanced convenience, and OEM quality. However, it comes with potential drawbacks, including cost, complexity, and dependence on other components. Ultimately, consumers must weigh these factors against the importance of having a functional rear object detection system in their vehicle.

If you're in the market for a rear object detection system and are comfortable with the installation process, the GM 84878473 Rear Object Detection Sensor Wiring Harness is an excellent choice for enhancing safety and convenience in your compatible General Motors vehicle. However, if you're unsure about the installation process or prefer a more turnkey solution, consider consulting a professional mechanic for a more seamless experience.

Details:

High-value items are usually sent with signature-delivery requirements. Parts and prices listed on our site are based off GM pricing.

part #: 84878473 prices

• $76.19-$123.38

specifications parkistanc:

• for models: Acadia
• for years: 2021-2023
• brand: Gm
• mpn: 84878473
• part type: Wiring Alarm Sensor Harness
• genuine oem: Yes
• warranty: 1 Year
• fitment type: Direct Replacement
• make: Gmc
• year: 2021 2022 2023
• parts included: Only Part Reference 3 On The Diagram Is Included

general parkistanc:

• condition: New
• Advanced Driver Assistance Systems > Parking Assistance > Other Parking Assistance

payments parkistanc:

• wallet: Google-pay
• other
• credit card: Diners-club

offer parkistanc:

• quantity: 2
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: July 30, 2025

seller parkistanc:

• # reviews: 1026
• city: Tomball, Texas
• rating: 99.5%

shipping parkistanc:

• cost: $0.00
• transit: 3-8 Days
• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air Saver
• carrier: UPS
• type: Fixed
• class: Standard, Expedited, One-day

returns parkistanc:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

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