The noise may be caused by the 110 Volt Power Inverter Module not being seated properly in the mounting bracket (if equipped with RPO K14). Condition 2: Rattle, squeak or itch type noise from the center of the dash in the radio area. The instrument panel accessory bezel may be rattling due to insufficient tension of retainers. Press on the bezel while duplicating noise to see if it is eliminated. Condition 3: Rattle or itch type noise from the dash area near the windshield Defroster grill may be rattling due to insufficient retention of retainers. Press on defroster grill ( # 1 in illustration) while duplicating concern to see if it is eliminated. Condition 4: Rattle, tick, knock type noise from the front center floor or center of dash area (Applies to trucks equipped with center console subwoofer speaker) This concern could be caused by the radio subwoofer speaker mounting nuts either being loose or missing. Condition 5: Creak, ticking or popping type noise heard from the left center stack area. (This issue only applies to Full Size Utilities built before November 18, 2016) This concern could be caused by the use of an incorrect screw that secures the instrument panel carrier in place. The screw that may have been used is too long, and it may contact the instrument panel tie bar. In some cases, this noise may only occur after the vehicle has been driven for a period of time. Condition 6: Chirp or squeak noise coming from the lower left side of the center stack area. This concern could be caused by loose retaining nuts on the chassis harness retention bracket that is located below the brake booster. Condition 7: Rattle noise coming from the drivers footwell area. This concern could be caused by the IP junction block cover moving and causing a rattle noise. Recommendation/Instructions Correction 1 (for vehicles equipped with 110 Volt AC Converter - RPO K14): Follow SI to locate the Accessory AC and DC Power Control Module located to the right of the steering column. See #1 in photos below: Inspect the power inverter module for possibly moving slightly against mounting bracket and creating the noise. Remove the K14 power inverter module and apply two sided tape to the module bracket to insulate it from the mount. Two sided tape is available through Kent Automotive, part # P40519 which is a ½”x 50’ roll or it may be obtained locally. Correction 2: Wrap Kent automotive BRS flocking tape part number KT13487 over retainers (#1 in illustration) and reinstall bezel. This will require an application of BRS flocking tape on ten retainers (one strip @ 1” x 10”). Two sheets should repair 16 vehicles. Correction 3: Remove defroster grill. Apply foam tape around connectors located under grill to prevent them from rattling on grill. See # 1 in illustrations. Apply foam tape to all mounting hooks in the front of the defroster grill # 1 and apply a strip of foam tape along the edge of the grill to isolate the grill from the dash #2. Wrap Kent automotive BRS flocking tape part number KT13487 over the metal retaining tabs that secure defroster grill in position #3. Foam tape can be obtained from Kent Automotive, part # KT15103 (40 ft roll) or it may be obtained locally. Correction 4 To correct this issue, inspect the center console subwoofer speaker (2) mounting nuts (1) for being loose or missing. Subwoofer speaker mounting is shown below. Install and tighten the subwoofer speaker mounting nut(s) to 6 Nm (53 lb in). Correction 5: (This issue only applies to Full Size Utilities built before November 18, 2016) The screw shown in the photos below may be too long and the screw tip actually contacts the instrument panel tie bar. This contact is shown as item #4 below. This screw secures the instrument panel carrier to the instrument panel tie bar. Chevrolet/GMC models are shown as item# 1 and a close-up of this fastener can be seen as item #2. Replace this screw with a shorter fastener, GM part number 11547755, which is approximately 24 mm in length. Cadillac models can be seen in item #3 below. Replace this screw with a shorter fastener, GM part number 11547755, which is approximately 24 mm in length as well. Correction 6: The following picture shows the chassis harness retaining bracket and nuts (2) below the brake booster (1). Verify the retaining nuts are tight. Correction 7: To correct this issue use foam tape to insulate the IP junction block cover to prevent movement which is causing the rattle type noise.
there is a reprogram /recall on 4WD where the brakes lock up and cause it to pull. call/contact your local dealer to see if your vehicle falls with in this recall. N192261050-01: Safety Recall - Unexpected Pull To One Side - (Nov 20, 2019) Subject: N192261050 — Unexpected Pull To One Side Models: 2014–2018 Chevrolet Silverado 2014–2018 GMC Sierra 2015–2020 Chevrolet Suburban 2015–2020 Chevrolet Tahoe 2015–2020 GMC Yukon Release Date: November 2019 Revision: 01 Revision Description:This bulletin has been revised to include the WCAP Program and the Canadian UVCP program for used cars. The customer letter has been added. Software has been made available for model years 2014-2016, and 2018. Please discard all previous copies of bulletin N192261050. Attention: It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied. This is a phased launch. Vehicles involved in this recall were placed on stop delivery October 24, 2019. Software is now available for model year 2014-2016, and 2018-2020 vehicles. Once the service procedure contained in this bulletin has been performed on the vehicle, the vehicle is released from stop delivery and the vehicle can be delivered to the customer. We anticipate software availability for model year 2017 vehicles in the very near future and will revise this bulletin when software is ready. All involved vehicles that are in dealer inventory must be held and not delivered to customers, dealer traded, or used for demonstration purposes until the repair contained in this bulletin has been performed on the vehicle. Make Model Model Year RPO Description From To Chevrolet Silverado 1500 2014 2018 L83 GU4 5.3L Engine 3.08 Rear Axle GMC Sierra 1500 Chevrolet Suburban 2015 2020 Chevrolet Tahoe GMC Yukon Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections and/or repairs. Condition General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2014 – 2018 model year Chevrolet Silverado and GMC Sierra 1500 vehicles equipped with four-wheel drive, a 5.3-liter engine, and a 3.08-ratio rear axle, and certain 2015 – 2020 model year Chevrolet Suburban, Chevrolet Tahoe, and GMC Yukon equipped with four-wheel drive, a 5.3-liter engine, and a 3.08-ratio rear axle. If a wheel-speed sensor fails in these vehicles, a software error in the vehicle’s electronic brake control module (EBCM) can cause the vehicle’s driveline-protection system to activate when (i) the vehicle’s electronic transfer case is set to four-wheel drive or automatic mode, and (ii) the vehicle is driven between the speeds of 41 and 60 MPH. If the driveline-protection system activates, the driver will experience unintended braking on the wheel on the opposite side of the failed sensor. (Same axle.) Correction Dealers will reprogram the electronic brake control module (EBCM). Parts Information No parts are required for this repair.
yes they can and will. outside temp and temp of the tire directly effect the tire pressure. check your tire pressure on cold tires. fill to spec. they can change easily 3-4 psi depending on tire temp/outside temp.
i had a 19 truck recently complaining of a brake squeal , i ended up deglazing the brake pads and turning the rotors. sometimes pads/rotors get glazed and they will make a noise. there is a software update about the brake life % . typically the pads are still fine just a software issue.
these trucks have an electronic vacuum pump module assembly that is part of the EBCM. they will malfunction. i have replaced 7 of these on the 19-20 trucks already. the brake pad monitor life is just a software update. they will not change the pads cuz there is nothing wrong with the brake pads. i have done this update 20+ times. if they EBCM vacuum pump assembly is faulty it will set dtcs and sometimes a check engine light. and when faulty it can reduce top speed or say braking system is reduced. as far as the fuel gauge only saying you can fill to 7/8ths of a tank this could be a software issue, i havent personally seen it yet. it could also be something with in the tank it self . the lane assist /parking assist could be a dirty sensor or a sensor went bad. the grill and steps cosmetic issues should be covered. also while it is there if it hasnt been done ( assuming not since it was just released ) there is a recall about a seat belt pretensioner causing the carpet to catch fire in the case of an accident. there is a stop sale on this recall. they will address this while there and any other open field actions/recalls
just go to the dealership and speak to the service manager
it is an updated part. GM just updated the coverage on this to 10 yrs 150,00 so if you still are with in coverage period just go to the dealer and have it done.
they can be off and not 100% accurate to the display its just an RF signal sent to a receiver. tint, after market wheels, other things can interfere with the signal. as far as the light coming on and you put air in it and it didnt change, well do you know for sure that the sensors positions are learned to the vehicle correctly? meaning when they get rotated is the shop relearning them after? they need to be relearned every time. so you may be putting air in the left rear but the that may not be the left rear according to the vehicle.
they have to go through GDS and preform a reset procedure for both front and rear. this is after they perform the bulletin to update the software. HOWEVER if its over 6000 the bulletin says not to reset the pad life. i have done 5 of these in the last week at work.
the throttle body may be bad at this point , replace it with an OEM throttle body. also those reuseable filters are horrible , that is typically caused by over oiling the filter. but basically you just cost yourself a throttle body using a reuseable filter instead of just replacing the OEM filter with another OEM
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