redwngr

2021 2500 order guide SF6 LPO, Body color wheel arch moldings, (dealer-installed) 1 - Requires exterior paint (GAZ) Summit White, (GBA) Onyx Black, (GSK) Cayenne Red Tintcoat or (GAN) Quicksilver Metallic. Not available with (ZW9) pickup bed delete, (VQK) front and rear Black molded splash guards, LPO or (PDH) GMC Interior Protection Package, LPO. 2 - Requires exterior paint (GAZ) Summit White, (G1W) White Frost Tricoat, (GBA) Onyx Black, (GSK) Cayenne Red Tintcoat or (GAN) Quicksilver Metallict. Not available with (ZW9) pickup bed delete, (VQK) front and rear Black molded splash guards, LPO or (PDH) GMC Interior Protection Package, LPO. 3 - Requires exterior paint (GAZ) Summit White, (GBA) Onyx Black or (GSK) Cayenne Red Tintcoat. Not available with (VQK) front and rear Black molded splash guards, LPO or (PDH) GMC Interior Protection Package, LPO. 4 - Requires exterior paint (GAZ) Summit White, (G1W) White Frost Tricoat, (GBA) Onyx Black, (GSK) Cayenne Red Tintcoat, (GAN) Quicksilver Metallic or (GCI) Carbon Black Metallic. Not available with (VQK) front and rear Black molded splash guards, LPO or (PDH) GMC Interior Protection Package, LPO. 1, 2, 3, and 4 are trim levels - SLE, SLT, AT4 and Denali They show not available on base Sierra.

ECM can/does raise idle for several reasons: From Duramax supplement: Under certain conditions the engine idle speed can vary or be elevated. Change in idle speed is normal and does not indicate a problem. Normal conditions that can raise idle speed are low voltage, DPF regeneration, air conditioning compressor loads, and engine warmup. These speeds can range from approximately 600 to 1000 rpm.

They keep bumping up the size of standard and available alternators. 2020 HD's the standard alternator is 170A on gas, 220A on diesel (up from 150A standard on all HD engines in 2019) KW7 Alternator, 170 amps --- Requires (L8T) 6.6L V8 gas engine. KW5 Alternator, 220 amps Trims other than custom -- Included with (L5P) Duramax 6.6L Turbo-Diesel V8 engine or (VYU) Snow Plow Prep/Camper Package. Free flow on (L8T) 6.6L V8 gas engine. On Custom - Included with (VYU) Snow Plow Prep/Camper Package. KHF Alternators, dual, 220-amps primary, 170-amps auxiliary On Trims other than custom - Requires (K4B) auxiliary battery with (L8T) 6.6L V8 gas engine. On Custom - Requires (K4B) auxiliary battery.

Thanks. Didn't know that one! (the others are straight from the list in the OM's.) And it doesn't it matter if tow/haul is engaged? Might have to 'borrow' swmbo's ride and check it out.

The folks selling 'insurance' would not be in business if they weren't making a profit, even after paying commissions to the dealers and sales people. My argument is that you're not going to have every vehicle and appliance have a failure that has a cost that exceeds the cost of extended insurance. The ones that don't have failures cover the costs of those that do. Exactly what the companies selling insurance are counting on to happen -- or they won't be in business when you go to collect. The profit from the insurance might as well be in your pocket. OTOH, if spending the extra money makes you happy, or makes you sleep at night -- go for it. But don't forget that the dmax powertrain warranty is a lot longer than the bumper to bumper (and also longer than the gasser powertrain warranty)

Several of the items on the list are easy to test.

The Terrain also has a list of conditions that will cause it not to stop. Perhaps you've not been in it when one of the conditions was present? What year is the Terrain? Online 2019 Terrain owners manual shows the same list of conditions as the cut-and-paste from the Sierra manual that was posted above.

Auto Stops may not occur and/or Auto Starts may occur because: . The climate control settings require the engine to be running to cool or heat the vehicle interior. . The vehicle battery charge is low. . The vehicle battery has recently been disconnected. . Minimum vehicle speed has not been reached since the last Auto Stop. . The accelerator pedal is pressed. . The engine or transmission is not at the required operating temperature. . The outside temperature is not in the required operating range. . The vehicle is in any gear other than D (Drive). . Tow/Haul Mode or other driver modes have been selected. . The vehicle is on a steep hill or grade. . The driver door has been opened or the driver seat belt has been unbuckled. . The hood has been opened. . The Auto Stop has reached the maximum allowed time.

A reset tool is required. The tire air down thing is no longer an option. Dealer I frequent keeps one in the service reception area. No charge to do the walk around/reset and no charge. Tire shops would likely do the same thing for you. Someone will post the make/model of reset tool

From bitter experience, I can tell you that not all 'standard' garage doors are the same height.... But higher doors seem to be are much more common than they used to be. Don't forget to factor in any change in tire height.

GMC Sierra/Denali 2500 HD Deletions (A52) Front 40/20/40 split-bench seat (GJI) Dark Sky Metallic exterior paint (GPJ) Red Quartz Tintcoat exterior paint (QT3) Manual tailgate function with lift assist (PYR) Wheels, 18" (45.7 cm) 6-spoke machined aluminum with high gloss Black accents Extended (PDT) SLT Premium Plus Package (PDW) Texas Edition SLT Premium Plus Package (MCY) Single USB Port New Features (GB8) Ebony Twilight Metallic exterior paint (GSK) Cayenne Red Tintcoat exterior paint (GED) Hunter Metallic exterior paint (RGE) 1SA Safety Confidence Package (PDB) SLT Premium Package (PDC) Texas Edition SLT Premium Package (PDG) AT4 Premium Plus Package (JSE) Denali Black Diamond Edition (RFX) X31 Off-Road and Protection Package (BKF) Premium front floor liners with removable carpet inserts (BKE) Premium rear floor liners with removable carpet inserts (DRC) Mirror, inside rearview auto dimming with partial video display (UVO) Bed View Camera, camera in the CHMSL to show a view of the cargo bed, display located in rearview mirror (VXW) LPO, AT4 high clearance step (BRS) Assist steps, power-retractable, stainless steel accents, includes LED lights (DP6) Mirror caps, high gloss Black on AT4 (QG3) LT275/70R18, mud-terrain, blackwall tires (PXD) Wheels, 18" (45.7 cm) machined aluminum wheel with Dark Grey metallic accents (RTJ) Wheels, 20" (50.8 cm) high gloss Black painted aluminum (RW9) LPO, Bedside Storage, right hand and left hand side (5VI) LPO, Tie-Downs, (4) (Q7Q) Wheels, 20" Transit wheels for 20" LPO wheels (FHS) E85 FlexFuel capable on gasoline engine (SKW) LPO, 20" (50.8 cm) multi-dimensional Chrome aluminum wheels (SKX) LPO, 20" (50.8 cm) high gloss Black aluminum wheels with machined accents Changes (PCQ) SLE Convenience Package no longer includes (QT5) EZ Lift power lock and release tailgate (PDY) SLT Preferred Package now includes (UVN) Bed View Camera and (UVS) HD Surround Vision with Two Trailer View Camera Provisions (PDO) AT4 Preferred Package now includes (UVN) Bed View Camera and (UVS) HD Surround Vision with Two Trailer View Camera Provisions (AE7) Front 40/20/40 split-bench seat with upper covered armrest storage is standard on 1SA (U2K) SiriusXM is standard on 3SA and available on 1SA (Q7R) 20" wheels with new finish, machined aluminum wheel with bright Silver accents (PYU) 20" wheels with new finish, machined aluminum with high gloss Black accents (CWM) Technology Package, no longer includes (UVN) Bed View Camera or (UVS) HD Surround Vision (BG9) Rubberized-vinyl floor covering is standard on 1SA (B30) Color-keyed carpeting is available on 1SA (UVN) Bed View Camera is now included in (PDY) SLT Preferred Package and (PDO) AT4 Preferred Package (UVS) HD Surround Vision with Two Trailer View Camera Provisions is now included in (PDY) SLT Preferred Package and (PDO) AT4 Preferred Package (QK1) Standard tailgate is now available on 3SA (QK2) GMC MultiPro Tailgate is now standard on 3SA (CMT) Gooseneck / 5th Wheel Package is not available on Denali you now order free flow option (Z6A) Gooseneck / 5th Wheel Prep Package on Denali Trim only (ZL6) ProGrade Trailering System no longer includes (U2K) Sirius XM and (QT5) EZ Lift and power lock and release tailgate (A50) Bucket seats are not available on 3SA trim

2021 Changes (so far) Chevrolet Truck Silverado 2500 HD Deletions (GJI) Shadow Gray Metallic (GPJ) Cajun Red Tintcoat (A52) Front 40/20/40 split bench seat (QT3) Tailgate (MCY) USB port (RQ9) 20" machined aluminum wheels with high gloss Black painted accents New Features (GB8) Mosaic Black Metallic (GSK) Cherry Red Tintcoat (RGE) Safety Confidence Package available on Work Truck (1WT) and Custom (1CX) trim levels (PCQ) Duramax and Appearance Package on LT (1LT) (PDY) LTZ Premium Texas Edition (WJP) Midnight Edition (WEA) Z71 Sport Edition (WBL) Z71 Chrome Sport Edition (CSE) Carhartt Special Edition (HDB) Jet Black/Carhartt Brown interior (Carhartt Special Edition) (BKF), (BKE) Carpeted floor liners Wireless Phone Projection, for Apple CarPlay and Android Auto (DRC) Inside rearview mirror with partial video display (UVO) Bed View Camera, camera in the CHMSL to show a view of the cargo bed, display located in rearview mirror (PTW) 18" High Gloss Black aluminum wheels (Q86) 20" machined aluminum with Grazen Metallic painted accent 10-spoke wheels (NZD) 20" Black painted wheels with Black center caps (QG3) LT275/70R18, mud-terrain, blackwall tires (E85) FlexFuel capability (Q7Q) LPO transit wheels (SKW) LPO, Wheels, 20" Chrome aluminum (SKX) LPO, Wheels, 20" Aluminum high gloss Black with machined finish (SHH) LPO, Wheels, 20" high gloss Black aluminum (BRS) Bright power-retractable assist steps Changes (AE7) Front 40/20/40 split-bench with upper covered armrest storage is now standard on Work Truck (1WT) and Custom (1CX) (MCZ) USB ports now standard on Work Truck (1WT) and Custom (1CX) trim levels (QT5) Tailgate is now standard on LT (1LT) trim level (PCN) LTZ Convenience Package II now includes (UVN) Bed View Camera, (UVS) HD Surround Vision with Two Trailer View Camera Provisions (CWM) Technology Package no longer includes (UVN) Bed View Camera, (UVS) HD Surround Vision with Two Trailer View Camera Provisions (U2K) SiriusXM Radio is now available on Work Truck (1WT) and standard on LT (1LT) (CMT Gooseneck / 5th Wheel Package is no longer available on High Country (3LZ) trim level, replaced with free flow (Z6A) Gooseneck / 5th Wheel Prep Package on High Country (3LZ) trim level only (ANQ) Alaskan Snow Plow Package now includes (PTW) 18" High gloss Black aluminum wheels

PQB Safety Package, includes (UD5) Front and Rear Park Assist, (UKC) Lane Change Alert with Side Blind Zone Alert and (UFG) Rear Cross Traffic Alert On LT - Includes Perimeter Lighting. Requires (PCL) Convenience Package. 2WD models include (V76) front recovery hooks. Not available with (DPO) trailer mirrors. On RST and TB - Includes Perimeter Lighting. Not available with (DPO) trailer mirrors. On LTZ - Includes Perimeter Lighting. 2WD models include (V76) front recovery hooks. Included with (PDF) LTZ Plus Package, (PDK) LTZ Premium Package or (PDL) LTZ Texas Edition.

Take it back tomorrow and get the one you want.

The RPO number might be in the QR code on the silver/black label at the bottom of the door post (it won't contain 'all' the codes) If you take a shot of the QR using a smartphone app it will list the ones that are there. U1D Advanced Trailering System, includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module On LT - Included and only available with (PCM) Convenience Package II or (ZL6) Advanced Trailering Package. Standard on LTZ except - With (ZW9) pickup bed delete no provision for a trailer tire pressure monitor system will exist but all the other (U1D) features will remain. Standard on HC Since your avatar info says you have an LT, the first note about PCM or ZL6 applies. So if you know (or the QR codes shows) you have one of those, then you do have U1D From the VIN, any dealer can print the build sheet for for your truck with all the codes. GM chat /social media can also send you a build sheet if you give them the VIN

Of course, if you did, you would have found it....

Take the $2800 and drop it in a 'self insurance / retirement account' Do that with every vehicle you buy and every appliance etc that you buy. The fund isn't likely to ever go 'negative'.

PCQ SLE Convenience Package, includes (CJ2) dual climate control, (A2X) 10-way power driver seat including power lumbar, (KA1) heated driver and passenger seats, (KI3) heated steering wheel, (N37) manual tilt/telescoping steering column, (C49) rear-window defogger, (ATH) Keyless Open and Start, (N06) Steering column lock, (BTV) Remote Start, (UTJ) content theft alarm, (AZ3) front 40/20/40 split-bench with underseat storage on Crew Cab and Double Cab models, (USS) 2 charge-only USB ports for second row, (UF2) cargo bed LED lighting, (KPA) rear auxiliary 12-volt power outlet, (T3U) fog lights, (U01) Roof Marker Lamps and (B1J) rear wheelhouse liners

The system is compatible with trailer tires that have placard pressure values from 103 - 689 kpa (15 - 100 psi). The hole in the wheel for the tire stem must be 11.43 mm (0.453 in) in diameter.

Here's some info about the 3.0 cooling system: https://gm-techlink.com/?p=12050 New Duramax Diesel 3.0L 6-Cylinder Engine Powers Up Silverado 1500, Sierra 1500 September 13, 2019 The all-new Duramax® Diesel 3.0L inline 6-cylinder turbocharged engine (RPO LM2) delivers plenty of power — producing 282 horsepower and 450 lb.-ft. of torque — along with impressive fuel economy — an estimated 30 mpg (7.8L/100km) highway on 2WD models — in an efficient package. (Fig. 1) Available on 2020 Silverado 1500 and Sierra 1500 models, it’s paired with the 10L80 10-speed automatic transmission (RPO MQB). Fig. 1 Turbocharged Performance The dual overhead camshaft (DOHC) engine uses an aluminum block with six pressed-in iron sleeves and a high pressure diesel fuel injection system. The lower oil pan is made of dual-layer stamped aluminum. (Fig. 2) The 3.0L diesel engine uses SAE 0W-20 dexosD diesel engine oil. Do not add anything to the oil. Fig. 2 The turbocharger is a variable nozzle design with an electric vane actuator attached to the exhaust manifold. The Variable Geometry Turbine (VGT) body assembly contains a contact-less inductive VGT position sensing element that is managed by a customized integrated circuit. The VGT position sensor provides a signal voltage that changes relative to the VGT vanes angle. The customized integrated circuit translates the voltage based position information into serial data using Single Edge Nibble Transmission (SENT) protocol. The VGT position sensor information is transmitted between the VGT body and the Engine Control Module (ECM) on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for the VGT position sensor. The intake manifold houses the integrated intercooler. The intercooler system includes an air cooler/heat exchanger built into the intake, a charge air cooler (CAC) radiator assembled in the front fascia, and an electric coolant pump. The CAC coolant pump provides operational and diagnostic feedback to the ECM. (Fig. 3) Fig. 3 The fuel system features a 3-phase electric fuel pump in the fuel tank that is controlled by the fuel pump driver control module and the ECM. Fuel is pumped from the fuel tank to the fuel filter assembly, which consists of a fuel filter/water separator, fuel heater, fuel temperature sensor, and a water in fuel sensor. The ECM controls the fuel injection timing and has the ability to learn injector timing performance. Under the correct operating conditions, the ECM will pulse each injector individually and measure the changes in rotational speed of the crankshaft using the input from the crankshaft position sensor. The ECM will run this diagnostic at one fuel rail pressure operating point for each injector. The ECM stores the injector timing value. Active Thermal Management The Active Thermal Management (ATM) system on the 3.0L diesel engine distributes coolant through the engine in a targeted manner, sending heat where it’s needed to warm up the engine and reduce friction. It also promotes quicker heating of the passenger compartment and enhanced engine cooling during high power operation. The system uses a conventional engine-driven coolant pump while the ECM controls the ATM system using feedback from various coolant temperature sensors. The engine coolant flow control valve assembly that is part of the ATM system uses two chambers to control coolant flow. (Fig. 4) The first chamber controls the coolant flow rate across the radiator and bypass. The second chamber controls the flow to the transmission and engine oil cooler as needed, providing heated coolant from the EGR/turbocharger return circuit or cold coolant directly from the pump outlet. Fig. 4 Exhaust Aftertreatment System The exhaust aftertreatment system is designed to reduce the levels of hydrocarbons (HC), carbon monoxide (CO), oxides of nitrogen (NOx), and particulate matter (PM) pollutants remaining in the engine’s exhaust gases before they exit via the vehicle’s exhaust tailpipe. NOx is controlled by a Selective Catalytic Reduction (SCR) converter combined with precise injections of Diesel Exhaust Fluid (DEF), while PM is controlled by a diesel particulate filter (DPF). To reduce packaging volume and manufacturing cost, the SCR catalyst on the DPF is coated to form an SCR-coated DPF, or a Selective Catalytic Reduction on Filter (SCRoF). The close coupled DOC along with the SCR on Filter are integrated into one assembly. In the DPF, particulate matter consisting of extremely small particles of carbon remaining after combustion are removed from the exhaust gas by the large surface area of the DPF. DEF is injected into the exhaust gases prior to entering the SCRoF stage. Within the SCRoF, NOx is converted to nitrogen (N2), carbon dioxide (CO2), and water vapor (H20) through a catalytic reduction fueled by the injected DEF. The exhaust aftertreatment system components (Fig. 5) include: Exhaust temperature sensor DEF injector mounting flange Exhaust pressure differential sensor pipe Exhaust pressure differential sensor pipe EGR flange NOx catalytic converter assembly Particulate matter boss Exhaust back pressure valve Fig. 5 The DEF fill, identified by a blue cap, is located behind the fuel fill door. (Fig. 6) After filling the DEF tank, unless the DEF tank was empty, there may be a short delay before the increased fluid level is detected and the DEF level indicated on the Driver Information Center is updated. Fig. 6 Automatic Engine Stop/Start System Designed to help conserve fuel, the Automatic Engine Stop/Start system may turn off the engine when the brakes are applied and the vehicle is at a complete stop, if the required operating conditions are met. The tachometer will read Auto Stop. The Stop/Start system can be disabled and enabled by pressing the Stop/Start switch on the center of the instrument panel. (Fig. 07) The system is enabled each time the vehicle is started. Fig. 7 An auxiliary electric engine coolant pump motor (Fig. ? continually circulates engine coolant through the heater core while the Stop/Start system has shut down the engine and the ambient temperature is colder than 59°F (15°C) to maintain the passenger compartment temperature. Fig. 8 The 3.0L diesel engine also features an active engine mount system to enable an optimal balance between vehicle Noise Vibration and Harshness (NVH) performance and vehicle dynamics, including during Automatic Engine Stop/Start events. There is a single solenoid on each active engine mount that is energized during an ignition event and switched on for idle and driving events. The solenoid valves are supplied with battery voltage through a single fuse and are controlled by the ECM. Normal Sounds After Engine Shut-Off After the 3.0L diesel engine has been shut off, several sounds may be heard in the engine bay. These sounds may be caused by the following components performing a cleaning cycle: Turbocharger linkage (Fig. 9) Exhaust throttle valve Intake manifold swirl valve Fig. 9 The sounds are normal operating characteristics of the vehicle and do not impact the designed performance or reliability of the vehicle. Refer to Bulletin 19-NA-188 for additional information. Special Tools The following new tools were released for the 3.0L diesel engine: Tool Number Description EN-52445 Camshaft Tool EN-52446 Rear Crankshaft Seal Installer EN-52448 High Pressure Fuel Pump Tool EN-52449 Engine Stand Adapter EN-52451 Fuel Injector Remover EN-52452 Installer, Front Crankshaft Seal EN-52474 Engine Lift Bracket Assembly EN-52579 Crankshaft Rotator Tool EN-52586 Fixing Pin, Crankshaft Timing EN-50717-20 Valve Spring Compressor Adapter For more details about the new 3.0L Duramax diesel engine, refer to Bulletin #19-NA-180.

Adaptive cruise is camera based. If it can't see, it won't run. It's not just soot based. Regen can/will trigger off: - miles driven - fuel burned - soot load - engine hours -- there maybe others

Tow mirrors aren't tied to NHT anymore. For SLT they are required by the technology package. DQS Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, lower convex mirrors, turn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting and memory; power folding/ manual extending SLT - Requires (CWM) Technology Package. CWM Technology Package, includes (UVS) HD Surround Vision, (DRZ) Rear Camera Mirror, (UVN) Bed View Camera and (UV6) Multicolor 15" Diagonal Head-Up Display SLT - Requires (DQS) outside power adjustable vertical trailering mirrors, (RGK) Acknowledgement, (PDJ) Driver Alert Package II and (PDY) SLT Preferred Package. Includes (UHS) 8" Digital Driver information Center. AT4 - Requires (PDJ) Driver Alert Package II and (PDO) AT4 Preferred Package. Includes (UHS) 8" Digital Driver information Center. Denali - Included with (PEC) Denali Ultimate Package. Requires (PDJ) Driver Alert Package II. NHT Max Trailering Package, includes 9.76" rear axle, (GU6) 3.42 axle ratio, enhanced cooling radiator, revised shock tuning for increased control, heavier duty rear springs, increased RGAWR and (KW5) 220-amp alternator SLE and Elevation - Not available with (TRE) stock order types. Available for (SRE) sold order types only. Requires (L84) 5.3L EcoTec3 V8 engine and 18" or 20" wheels and tires. Includes (JL1) trailer brake controller. Not available with 22" LPO wheels or (X31) X31 Off-Road Package. SLT - When ordered with (L84) 5.3L EcoTec3 V8 engine (NHT) is not available with (TRE) stock order types. Available for (SRE) sold order types only with (L84) 5.3L EcoTec3 V8 engine. (L87) 6.2L EcoTec3 V8 engine is available for (TRE) stock order types. Requires (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine and 18" or 20" wheels and tires. Not available with 22" LPO wheels, or (X31) X31 Off-Road Package. Sounds like a great truck!

FWIW, there are still only two oils on the DexosD approval list. Brand Name Supplier Specification Viscosity License Number Region ACDelco Light Duty Diesel General Motors dexosD™ 0W-20 DD0751IA015 Global Mobil Super 3000 XE2 ExxonMobil Oil Corp. dexosD™ 0W-20 DD0752IA015 Global

I can verify that you already can build/price at a dealer. FWIW, after pricing a heavily optioned 2021 at the dealer I did the same one as a 2020 at home. Pricing was nearly identical. Also saw the TFL video suggesting that this week for the home version. This was a couple days ago and the info about the new trailering stuff was not available.

Your dealer will be able to price a 2021 pickup -- even though the GM website design/build thing does't yet. Recently priced a couple versions of 2021 1500, then went home and did built/price on one a '20 with same configuration. MSRP difference was insignificant. (like $100 on the truck in the trim we were discussing -- and options were same cost) Of course discounted, retail selling prices on '21's are yet to be determined. I can't see HD MSRP pricing taking a big jump, when the 1500's are not.