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 vehicle’s 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 vehicle’s 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
- 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
- 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
- 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"
- Dual Subwoofer - MTX dual 12 inch sealed subwoofer enclosure for car audio bass system, preloaded dual driver layout for sealed bass box installation in trunk or cargo applications
- Sealed Bass Response Design - Sealed subwoofer enclosure is engineered for controlled low frequency output, tight bass response, and compact car audio installation in sedans, SUVs, and trucks
- Built to Last MDF Body - 5/8 inch MDF woofer enclosure with carpet wrap finish, designed for structural rigidity, reduced vibration, and minimized resonance during high output car audio use
- High-Output Bass Performance - Engineered for low impedance operation, allowing the subwoofer system to produce stronger bass output and a more immersive, high-impact listening experience
- Universal Fitment - Standard cutout enclosure compatible with most aftermarket subwoofer drivers, designed for sealed trunk mounted car audio bass box installations in vehicle audio systems
- SDR Series 12-inch Dual 4-ohm loaded Subwoofer Enclosure
- Peak Power: 2,400 Watts | RMS power: 1,200 Watts
- Pre-wired Internally for a 1 Ohm Final Impedance Load at the Terminals for an Easy Installation
- Custom Vented Enclosure Made of High Strength 5/8" MDF and Finished in Premium Black Carpeting
- Double Front Baffle (1.25") with Countersunk subwoofer design for Flush and Attractive Appearance
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 vehicle’s 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
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