NHTSA ID Number: 10070569
Manufacturer Communication Number: PIT4915D
Summary
Customers complain that their subwoofer is inoperative. Models with a 4 cylinder engine are equipped with an Active Noise Cancellation (ANC) system. ANC system works with the vehicleโs audio system to cancel out torque converter clutch (TCC) noise.
Condition/Concern
Some customers with a 2.4L engine and RPO UW6 may complain that their subwoofer is inoperative. Equinox and Terrain models with a 4 cylinder engine are equipped with an Active Noise Cancellation (ANC) system – which works to reduce the amount of noticeable noise at certain vehicle speeds. The ANC system works with the vehicleโs audio system to create sound waves that cancel out torque converter clutch (TCC) noise.
12 Affected Products
Vehicles
1 Associated Document
Service Bulletin Document
Bulletin No.: PIT4915D
Date: December, 2014
SB-10070569-0335.pdf 221.117KB
NHTSA ID Number: 10062894
Manufacturer Communication Number: PIT4915C
Summary
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
1 Associated Document
Service Bulletin Document
Bulletin No.: PIT4915C
Date: April, 2013
- Seventour 10 inch Ultra Slim Under Seat Active Powered Car/Truck Subwoofer with Built-In Amplifier, Enclosure made of cast aluminum for excellent heat dissipation and reliable performance.
- This is a car subwoofer audio that features a personalized spider speaker protector as well as a speaker LED ambient light ring design. When the car is started, the subwoofer lights up with blue LED lights. Make your car look more cool and dynamic.
- This car subwoofer includes wired bass volume remote control. With gain, bass boost and crossover controls, peak power: 800 watts, giving you a stunning bass experience.
- The Car Sub supports low level RCA inputs. It is also compatible with high level inputs, adjustable input sensitivity, thermal protection circuitry, short circuit protection circuitry, overload protection circuitry, green power/red protection LED.
- Low Pass Filter: 50Hz - 150Hz, Bass Boost: 0 - 12dB @ 45Hz, Built-in Sub-Acoustic Filter Load @ 20Hz, Total Harmonic Distortion (THD): < 0.4%, Rated Fuse: 25A, Peak Power: 800 Watts, RMS Power Handling: 220 Watts, Impedance: 4 Ohms Frequency Response 20Hz - 500Hz, Signal to Noise Ratio: >90dB , Low Level: 300mV, Input Sensitivity, High Level: 0.9V, Dimensions (inches): 13.5"(L) x 10.2"(W).Thickness: 3.1"
- Unleash Powerful Bass: Experience deep, heart-pounding bass with the MTX 1200-Watt Dual 12 Inch Subwoofer Enclosure, turning every car ride into a concert-like adventure; 1200W is peak system load, not continuous output
- Built to Last: Loaded enclosure features 5/8" MDF construction wrapped in aircraft-grade black carpet; Requires adequate trunk space, measuring 13.5"D x 26.63"W x 14"H
- Flexible Sound Control: The Planet Audio 1500W Monoblock Sound Amplifier features high and low-level inputs, variable bass boost, and a low-pass filter for precise tuning and clarity
- Installation Kit: Includes MTX TNE212D loaded sub enclosure, Planet Audio 1500 Watt Monoblock Amp, and Soundstorm AKS8 8 gauge wiring kit; Professional installation recommended, requires amplifier wiring, grounding, and tuning
- Compatibility: For proper install, this requires a compatible head unit or line-output converter, and your vehicle's electrical system must support the added load
- All-in-One Complete SDR Series Dual 12-inch Loaded Subwoofer Complete Bass Package
- Peak Power: 2,400 Watts | RMS Power: 1,200 Watts
- Includes x1 Skar Audio SDR-2X12D4 Dual 12" Loaded 2,400 Watt Vented Subwoofer Enclosure
- Includes x1 Skar Audio RP-1200.1D Class D 1,200 Watt Monoblock Car Subwoofer Amplifier
- Includes x1 Skar Audio SKAR4ANL-OFC 4 Gauge Premium OFC Complete Amplifier Wiring Kit
- All-in-One Complete SDR Series Loaded Subwoofer Complete Bass Package
- Peak Power: 1,200 Watts | RMS Power: 600 Watts
- Includes x1 Skar Audio SDR-1X12D2 Single 12" Loaded 1,200 Watt Vented Subwoofer Enclosure
- Includes x1 Skar Audio RP-800.1D Class D 800 Watt Monoblock Amplifier
- Includes x1 Skar Audio SKAR4ANL-CCA 4 Gauge Complete Amplifier Wiring Kit
- Enjoy The Ultimate AudioใThis 2025 Upgraded subwoofer car is designed as a perfect size to fit under your car seat, saving valuable space in your vehicle and also enhancing your car audio system at the same time. Forget the boredom and troubles of the journey, immerse yourself in the experience and enjoy the ultimate deep and powerful bass.
- ใExcellent heat dissipation performance ใZNCLCES 9.5 -inch Ultra Slim Under Seat Active Powered Car/Truck Subwoofer with Built-In Amplifier. The subwoofer car shell is made of cast aluminum, which improves the heat dissipation effect three times compared to traditional iron shells, ensuring that the subwoofer stays cool even when placed under the seat of your car or truck.
- ใAdjust the volume EasilyใThe subwoofer car included remote control๏ผWith gain, bass boost and crossover controls๏ผ allows you to change the amount of bass without changing the radio volume, peak power: 1200 watts, for the per mixture of bass in your music at any volume, giving you a stunning bass experience.
- ใAPP Controls lightsใDownload the app from the manual .The new 2025 upgraded version of the car subwoofer audio adopts an aluminum alloy spider-shaped speaker protector and a speaker LED atmosphere light ring design. When the car starts, the subwoofer will light up with a blue LED light and download the app from the manual, it could control the light on/off . You deserve it, it can make a car look cooler at night
- ใHigh to Low Level ConverterใThis Car Sub Supports High + Low Level RCA Inputs, Compatible with a variety of car stereo audio systems and car head unit equipment. It Features automatic turn-on technology, adjustable input sensitivity, thermal protection circuitry, short circuit protection circuitry, overload protection circuitry, green power/red protection LED
Last update on 2026-05-28 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
SEOCONTENT-START
Service Bulletin File in Section: – Bulletin No.: PIT4915D Date: December, 2014 PRELIMINARY INFORMATION Subject: Normal Characteristic – Sub-woofer Is Inoperative With a 2.4L Engine With RPO UW6 Models: 2010 – 2015 Chevrolet
Equinox 2010 – 2015 GMC Terrain with 6 Speaker System (RPO UW6) This PI was superseded to update Model Years. Please discard PIT4915C. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition/Concern Some customers with a 2.4L engine and RPO UW6 may complain that their subwoofer is inoperative. Equinox and Terrain models with a 4 cylinder engine are equipped with an Active Noise Cancellation (ANC) system – which works to reduce the amount of noticeable noise at certain vehicle speeds. The ANC system works with the vehicleโs audio system to create sound waves that cancel out torque converter clutch (TCC) noise. Recommendation/Instructions On a vehicle with a 2.4L and RPO UW6 which is a 6 speaker system, the subwoofer is only used for the Active Noise Cancellation (ANC). This speaker is not used to play any audio from the any of the radio sources. Note: Do NOT block the cargo area speaker for optimal ANC performance. 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.
SEOCONTENT-END