2012 GMC Sierra 1500 Reviews, Ratings, Prices - Consumer Reports
The Sierra, and its Chevrolet Silverado twin, is a well-rounded pickup with an available full-time 4WD system and generous payload capacity. Ride quality is decent with the Z85 suspension, and handling is secure. High-end models have very good interior fit and finish, but all have simple controls. The crew cab is roomy, with easy access.
Alerts
There are 3 recalls on this vehicle. Learn More.

Road Test Results

Performance
Acceleration Acceleration Acceleration tests are conducted on a smooth, flat pavement straightaway at the track. Time, speed, and distance measurements are taken with a precise GPS-based device that’s hooked to a data-logging computer.
NA
0 to 60 mph 0 to 60 mph (sec.) The time in seconds that a vehicle takes to reach 60 mph from a standstill with the engine idling.
Transmission Transmission Transmission performance is determined by shifting smoothness, response, shifter action, and clutch actuation for manual transmissions.
NA
Braking Braking The braking rating is a composite of wet and dry stopping distances and pedal feel. Braking distance is from 60 mph, with no wheels locked.
NA
Emergency Handling Emergency Handling Several factors go into the rating, including the avoidance maneuver speed and confidence, as well as how the vehicle behaves when pushed to its limit.
NA
Comfort / Convenience
Ride Ride Our expert judgment of how well the suspension isolates and absorbs road imperfections and how steady it keeps the body on various road surfaces.
NA
Noise Noise Our expert judgment of the vehicle's interior noise level in everyday driving.
NA
Front Seat Comfort Front Seat Comfort Our judgment of how comfortable the front seat is for drivers of various heights.
NA
Rear Seat Comfort Rear Seat Comfort Our judgment of how comfortable the rear seat is for two passengers to sit across.
NA
Interior Fit and Finish Interior Fit and Finish An expert evaluation of the interior quality and craftsmanship.
NA
Trunk/Cargo Area Trunk/Cargo Area Our rating is based on the amount of luggage or cargo space that a vehicle has in the trunk or cargo area.
NA
Fuel Economy & Emissions
Fuel Economy Fuel Economy We perform our own fuel-economy tests, independent of the government's often-quoted EPA figures and the manufacturers' claims. Using a precise fuel-flow measuring device spliced into the fuel line, we run two separate circuits to represent city and highway consumption.
NA
CR's Overall Mileage CR's Overall Mileage CR's overall mileage is a composite of measured fuel usage on a prescribed city course and highway cruising; and CR's 150-mile test trip of mixed driving, if tested. In recent road tests, we've discontinued the 150-mile trip test.
CR's City Mileage CR's City Mileage Measured fuel usage on a prescribed city course.
CR's Highway Mileage CR's Highway Mileage Measured fuel usage on a prescribed highway cruising.
Annual Fuel Cost Annual Fuel Cost The cost and amount of fuel used in 12,000 miles and is calculated from CR's overall mileage.
Greenhouse Gas Greenhouse Gas The Greenhouse Gas Rating represents the amount of carbon dioxide the vehicle emits compared to other vehicles of the same model year. This score from the EPA ranges from 1 (worst) to 10 (best).
Smog Rating Smog Rating The Smog Rating represents the amount of health-damaging and smog-forming airborne pollutants the vehicle emits compared to other vehicles of the same model year. This score from the EPA ranges from 1 (worst) to 10 (best).

Owner Reports

Worse Better
Reliability History Reliability History The reliability charts are based on responses on hundreds of thousands of vehicles from our latest Annual Auto Survey. Consumer Reports subscribers reported on any serious problems they had with their vehicles during the past 12 months that they considered serious because of cost, failure, safety, or downtime, in any of the trouble spots included in the table below. The results are presented relative to the average model that year. Extra weight is given to the more serious areas such as major engine or transmission problems. Based on this data and further analysis, we predict reliability for the latest year. N/A indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.
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Reliability Trouble Spots
Engine Major Engine Major Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.
Engine Minor Engine Minor Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.
Engine Cooling Engine Cooling Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.
Transmission Major Transmission Major Transmission rebuild or replacement, torque converter, clutch replacement.
Transmission Minor Transmission Minor Gear selector or linkage, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission.
Drive System Drive System Driveshaft or axle, CV joint, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, electronic stability control (ESC), electrical failure.
Owner Satisfaction Owner Satisfaction To learn about satisfaction, CR has collected survey data from our annual survey on more than half a million vehicles. Our subscribers provide great insights into their satisfaction by answering one simple question: If they had it to do all over again, would they definitely buy or lease the same model? In addition, respondents also rate their cars in six categories: driving experience, comfort, value, styling, audio, and climate systems. N/A indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.
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Driving Experience Driving Experience Includes acceleration and handling
Comfort Comfort Includes seats, climate control, noise, and ride
Value Value Did you get what you wanted relative to the price you paid?
Styling Styling How it looks inside and out
Safety Equipment
ABS standard. Head protection air bags and ESC standard from 2010. Side air bags standard from 2010.
Model Summary
The Sierra, and its Chevrolet Silverado twin, is a well-rounded pickup with an available full-time 4WD system and generous payload capacity. Ride quality is decent with the Z85 suspension, and handling is secure. High-end models have very good interior fit and finish, but all have simple controls. The crew cab is roomy, with easy access. A six-speed automatic slightly improves fuel economy and acceleration with the tested 5.3-liter V8. We found the hybrid drivetrain considerably improved fuel economy on the Tahoe hybrid we tested. The luxurious Sierra Denali model has permanent AWD and a powerful 6.2-liter V8. IIHS side-crash-test results are just Acceptable.
Seating
2 front, 3 rear
Drive Wheels
4WD, AWD, Rear
Warranty
Coverage varies among versions of this vehicle

In most cases, automotive warranties are based on the vehicle identification number (VIN), and the warranty will be valid regardless of ownership. The dealership can tell you exactly how much warranty is left.

Read more about extended warranties
Body Styles
extended cab
regular cab
crew cab
Transmissions Available
  • 6-speed Automatic
  • CVT
  • 4-speed Automatic
Engines Available
  • 4.3-liter V6 (195 hp)
  • 4.8-liter V8 (302 hp)
  • 5.3-liter V8 (315 hp)
  • 6-liter V8 hybrid (332 hp)
  • 6.2-liter V8 (403 hp)

Owner Reported Trouble Spots

The Reliability score is based on our latest subscriber survey of 2012 GMC Sierra 1500 owners. The owner comments describe problems respondents experienced with this vehicle.

Paint/Trim

Paint (fading, chalking, cracking, or peeling), loose interior and exterior trim or moldings, rust.

What Owners Say

Loose exterior trim or moldings

"Front bumper bottom molding too flimsy for snow and ice."

George K., NJ (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Molding and fasteners on the right Front fender came loose"

Louise G., IN (2012 GMC Sierra 1500 SLE 4.8-L V8)

"The trim molding on both driver's and passenger side doors has separated from vehicle and is in danger of falling off"

Anonymous, WY (2012 GMC Sierra 1500 SLT 6.2-L V8)
Loose interior trim or moldings

"Upper plastic trim which houses airbag cracked and had to be replaced"

Anonymous, GA (2012 GMC Sierra 1500 SLT 5.3-L V8)

"rear panel on drivers seat wouldn't stay in place. Kept sliding down causing inner part of seat to be exposed"

Monte B., TN (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Dashboard started cracking next to passenger side air bag. Unknown reason for the cracking. Dealership replaced dash and said that airbag was not causing the crack and the cracking on the dashboard was most likely a manufacturer defect"

Anonymous, OK (2012 GMC Sierra 1500 SLT 5.3-L V8)
Paint (fading, chalking, cracking, or peeling)

"Along the seam where the top of the front windshield meets the painted metal of the truck body, the paint line has been badly worn from the metal (along the seam edge) as if it were sandblasted by wind deflected from the windsheild. I took the truck to a body repair shop and was told that this was a common problem with this truck (I'm not sure if he meant brand, or model or year) and that it could not be solved by sanding and repainting because the damage was in a "seam"and any repair was likely to fail again. It was suggested I buy a small bottle of matching color paint (sold by and purchased from a GM dealer) and coat the damaged area using the fingernail polish sized brush included in the paint bottle. I've done this a couple of times. The painted areas remain covered but other areas along the seam become denuded of paint over time. The repaired areas remain covered and have not rusted, but the repairs are noticeable."

Anonymous, GA (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Paint flaking off of body mostly(but not limited to) around rear wheel well on both sides of vehicle"

Anonymous, ON (2012 GMC Sierra 1500 SLT 4.8-L V8)
Rust

"Paint failure on a few areas of the frame"

Anonymous, MI (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Rust around the rear wheel fenders. Have seen it happen on all trucks on this vintage."

Anonymous, (2012 GMC Sierra 1500 SLE 5.3-L V8)

"small rust specks on the bonnet and rust around the wheel wells, doors and sides. I repaired it myself last fall. now it looks wonderful."

Anonymous, NL (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Rusting where paint has flaked off"

Anonymous, ON (2012 GMC Sierra 1500 SLT 4.8-L V8)

Drive System

Driveshaft or axle, CV joint, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, electronic stability control (ESC), electrical failure.

What Owners Say

Differential

"Vibrations when driving ,differential was worn out badly had to be completely replaced and not covered by Gmc."

Michal P., RI (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Total failure vehicle vibrates at all speeds and differential has excessive wair not normally scean gmc corp refused to do anything about it"

Michal P., RI (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Excess play in driveline"

Anonymous, CA (2012 GMC Sierra 1500 SLE 5.3-L V8)
Driveline vibration

"Vibrations during driving."

Michal P., RI (2012 GMC Sierra 1500 SLE 5.3-L V8)
Driveshaft or axle

"GMC 6-speed transmission with AFM constant unstable shifting from 4 to 8 cyclinders or vice-versa very aggravating, not smooth. Also cruise control isn't as smooth as in previous transmissions"

Anonymous, GA (2012 GMC Sierra 1500 SLT 5.3-L V8)
Stability control (ESC)

"Stability trac and traction control turn on and off randomly when driving total junk"

Michal P., RI (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Ecs and traction control went bad engine control mod"

Nicholas A., SC (2012 GMC Sierra 1500 SLE 5.3-L V8)
Traction control

"The wires corroded to the rear speed sensors"

Anonymous, CT (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Warning light illuminates at times and is sporadic"

Anonymous, CA (2012 GMC Sierra 1500 SLE 5.3-L V8)

Body Integrity

Squeaks, rattles, wind noises, loose or cracked seals and/or weather-stripping, air and water leaks.

What Owners Say

Squeaks or rattles

"Exhaust rattles when idling Window rattles when not fully closed"

Joe P., FL (2012 GMC Sierra 1500 4.8-L V8)

"doors"

Anonymous, NJ (2012 GMC Sierra 1500 SL 4.8-L V8)

"Dash Rattle"

Robert H., ON (2012 GMC Sierra 1500 SLT 5.3-L V8)

"Door hinges are noisey and difficult to operate."

Anonymous, CT (2012 GMC Sierra 1500 SLT 5.3-L V8)
Wind noise

"Driver and passenger door window wind noise"

Anonymous, MO (2012 GMC Sierra 1500 SLE 5.3-L V8)

"when driving wind noise around doors and windows"

Anonymous, NJ (2012 GMC Sierra 1500 SL 4.8-L V8)

"Constant wind noise in the cabin, especially on the drivers door/window. The door was adjusted to eliminate the noise. Initially, the noise was reduced, but returned. I was told there is an "allowance" for transportation of vehicles, of approx. 1/2""

Anonymous, SD (2012 GMC Sierra 1500 SLE 5.3-L V8)

Body Hardware

Power or manual windows, locks and latches, tailgate, hatch or trunk, doors or sliding doors, mirrors, seat controls, safety belts, sunroof, convertible top.

What Owners Say

Doors or sliding doors

"Drivers door handle broke internally"

Anonymous, TX (2012 GMC Sierra 1500 SLE 4.8-L V8)
Locks and latches

"The handle on the driver door failed. The handle is plastic and the mechanism that connected the handle to the operation of the door became disconnected. According to mechanic, this is an ongoing problem with this vehicle model"

David W., TX (2012 GMC Sierra 1500 SLT 4.8-L V8)

"The cable from the door handle to the inside lever broke, and had to be replaced Door handle ripped off completely from vehicle during winter, replaced."

Anonymous, MI (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Rear driver side door handle pulled loose from door."

Douglas M., AL (2012 GMC Sierra 1500 Denali 6.2-L V8)
Seat controls - movement

"Drivers seat will not adjust or move"

Anonymous, MI (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Front passenger power seat doesn't work correctly."

Douglas M., AL (2012 GMC Sierra 1500 Denali 6.2-L V8)

Transmission Major

Transmission rebuild or replacement, torque converter, clutch replacement.

What Owners Say

Torque converter

"Vibration. Replaced under warranty"

John T., NH (2012 GMC Sierra 1500 SLT 6.0-L V8 hybrid)
Transmission rebuild or replacement

"Had to do a rebuild and then within a few months, had to replace the flex plate"

William F., FL (2012 GMC Sierra 1500 4.8-L V8)

"On two occasions now I have had transmission problems. Both required a replacement transmission (first time) and extensive repairs/rebuild second time"

Bob D., BC (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Since purchasing the truck new, this is the third rebuild and or replacement of the transmission"

Bob D., BC (2012 GMC Sierra 1500 SL 4.8-L V8)

"Vehicle wouldn't go in park. Had to tow it in to dealership for repair. They kept it for over 2 weeks"

Anonymous, LA (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Since buying this truck new, it has had one major transmission repair, one rebuild, and one replacement"

Bob D., BC (2012 GMC Sierra 1500 SL 4.8-L V8)

Engine Major

Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.

What Owners Say

Cylinder head

"I had a failure with a coil & wires in 1 cylinder in July and it was a simple fix. Seemed to have the same problem again in September but turned out to be 2 dead cylinders. Needed a valve job, milling if the head, etc. at least it wasn't an engine replacement."

Anonymous, CA (2012 GMC Sierra 1500 SLT 5.3-L V8)
Engine rebuild or replacement

"My truck had always used more oil than I thought it should from the time it was new. This is a known problem with GM trucks with active fuel management(AFM). At around 45,000 miles it started to have a shutter, I took it in to the dealer and was told that plugs #1 and #7 were fouled. You are not supposed to have to change the plugs but every 100,000 miles. They replaced the plugs and installed a new valve cover that has the PCV valve built into it, and that was supposed to fix the problem, at around 51,000 miles it fouled the plugs again. The only way to fix the massive oil burning, 1.5 quarts between 4,000 mile oil changes, and plug fouling is to put a new set of rings in the engine. I ended up having to pay $550 of the repair, even though it had happened originally while under the powertrain warranty. I have since put around 12,000 miles on the truck and with the help of an aftermarket device that keeps the truck in V-8 mode all of the time, it does not burn a drop of oil."

Anonymous, OK (2012 GMC Sierra 1500 SLT 5.3-L V8)

"The engine, from new, had a ticking noise sounding like a sticking lifter. I mentioned this numerous times to the GM dealer who told me their mechanics determined it was nothing. I had the motor fail to start several times, but it started after trying several times over the course of an hour. Finally the vehicle started shuddering violently while being operated and the GM dealer acknowledged the engine block had to be replaced because two cylinders were badly damaged with extensive scoring on the cylinder walls. The engine was replaced under warranty."

Anonymous, BC (2012 GMC Sierra 1500 SLT 5.3-L V8)

"had a service bulletin, and GMC replace pistons due to engine burning oil, and loss of power"

Anonymous, TN (2012 GMC Sierra 1500 SLT 5.3-L V8)

"I had a bad piston took it in under warranty and they said they fixed the problem. They did not. Brought it back but I was over 100000 so I had to pay 40% of the bill. Around $2500.00"

Anonymous D., MO (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Engine ran rough almost from the beginning, it took almost two years, several times having the vehicle fail to start, and many trips to the dealer before the problem was finally diagnosed and corrected"

Anonymous, BC (2012 GMC Sierra 1500 SLT 5.3-L V8)

Suspension

Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

What Owners Say

Alignment

"See previous problem with cupping tire. Dealership lied about problem or too stupid to be a mechanic"

Anonymous, LA (2012 GMC Sierra 1500 SLT 4.8-L V8)

"car floated direction while driving any speed"

Anonymous, CA (2012 GMC Sierra 1500 5.3-L V8)
Ball joints

"MA roads are notoriously filled with potholes and the ball joibt became unsafe"

Lysander B., MA (2012 GMC Sierra 1500 SLE 5.3-L V8)
Shocks or struts

"One rear shock was leaking about 6 weeks past warranty. I had both rear shocks replaced"

Anonymous, NY (2012 GMC Sierra 1500 WT 4.8-L V8)
Tie rods

"Had to have them replaced at 37,000 miles ....The truck is not driven hard and even if it had this part should be designed to last longer"

Anonymous, AZ (2012 GMC Sierra 1500 SLE 5.3-L V8)
Tire wear is uneven

"Right front tire cupping. Dealership claimed front end alignment and charged for service. Truck 2 months old. Rotated tires and put problem in rear of truck. Tire became so badly cupped I bought new tires and no more problems. Less than 12,000 on Fir"

Anonymous, LA (2012 GMC Sierra 1500 SLT 4.8-L V8)

Electric System

Alternator, starter, hybrid battery and related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, distributor or rotor failure, spark plugs and wires failure.

What Owners Say

Clock

"The craver control centre has frequently glitched where functions such as tripmeter, Tachometer and speedometer held at zero, even though the vehicle was obviously underway and travelling down the highway. Also the window switch on the drivers door has been intermittent for years and the dealership has refused to replace it even though it is covered under extended warranty."

Anonymous, (2012 GMC Sierra 1500 SLE 5.3-L V8)
Exterior lights (other than headlights)

"Entire wiring harness was burned out/faulty and needed to be replaced. First indication was the driver side parking lights not working"

Anonymous, NY (2012 GMC Sierra 1500 SLT 4.3-L V6)
Headlights

"Low beam light burned out twice"

William S., FL (2012 GMC Sierra 1500 SLT 5.3-L V8)
Heated or cooled seats

"The wire going to the seat shorted and caused the battery to go dead."

Anonymous, (2012 GMC Sierra 1500 SLT 5.3-L V8)
Warning lights

"The stabilitrack light came on. It was a sensor that went bad. The sensor had to be replaced and the computer reprogrammed."

Richard P., FL (2012 GMC Sierra 1500 Denali 4.8-L V8)

In-car Electronics

CD or DVD players, radio, speakers, GPS, communication system (e.g., OnStar), display screen freezes or goes blank, phone pairing (e.g. Bluetooth), voice control commands, steering wheel controls, portable music device interface (e.g., iPod/MP3 player), backup or other camera/sensors.

What Owners Say

In-dash navigation system (GPS)

"gps does not work, it has had an error message 4 times and the system has been replaced 2 times"

Anonymous, ON (2012 GMC Sierra 1500 SLE 5.3-L V8)
Radio

"CD player would not read CD's"

Anonymous, GA (2012 GMC Sierra 1500 SLE 5.3-L V8)

"Sirius / XM radio quit working, very annoying and expensive to repair"

Anonymous, TN (2012 GMC Sierra 1500 SLT 5.3-L V8)

"Continual scanning of radio stations"

Anonymous, NY (2012 GMC Sierra 1500 5.3-L V8)

Engine Minor

Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.

What Owners Say

Difficult to fill up gas tank

"Often times it is difficult to keep filling without holding the nozzle."

Anonymous, CA (2012 GMC Sierra 1500 SLT 5.3-L V8)
Engine computer

"The computer went bad needed to be repleased"

Nicholas A., SC (2012 GMC Sierra 1500 SLE 5.3-L V8)
Engine knock or ping

"Carbon buildup that clogs the injectors"

Todd B., WA (2012 GMC Sierra 1500 Denali 6.2-L V8)
Oil leaks

"Had to replace a valve cover gasket"

Ricki E., AZ (2012 GMC Sierra 1500 SL 4.3-L V6)

Climate System

Blower (fan) motor, A/C compressor, condenser, evaporator, heater system, automatic climate control, refrigerant leakage, electrical failure.

What Owners Say

Automatic climate control

"The automatic temperature system is not working. It does not maintain a constant heat or cool temperature. For example, for cooling, initially set the temp to 72 but over time have to raise it to 80 or higher because it is too cold. Not repaired"

David W., TX (2012 GMC Sierra 1500 SLT 4.8-L V8)
Heated or cooled seat controls

"Would not cool. Was in the shop 7 times for repairs"

Carol B., ID (2012 GMC Sierra 1500 SLT 6.2-L V8)
Refrigerant leaks

"The clamp taking the coolant into the radiator rusted through and fell apart. It caused my coolant levels to drop. Had to take the reservoir and air filter box out to attach new stainless steel house clamps."

Anonymous, PA (2012 GMC Sierra 1500 WT 4.3-L V6)

Transmission Minor

Gear selector or linkage, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission.

What Owners Say

Rough shifting

"Clunkiness and jerkiness when downshifting or up shifting at low speeds"

Anonymous, NJ (2012 GMC Sierra 1500 SLE 5.3-L V8)

"clunk and snapping noise at 20 mph . very anoying , brought back to dealership many times . they olney worked on it one time . and they keep telling me its normal . it aso idles rough . they tell me its to get better gas milage"

Neil B., MA (2012 GMC Sierra 1500 SL 4.8-L V8)
Slipping transmission

"Took the truck to the dealer on two occasions when I experienced this. First resulted in transmission replacement, second required extensive repairs/rebuild"

Bob D., BC (2012 GMC Sierra 1500 SLE 5.3-L V8)

Brakes

Antilock system (ABS), parking brake, master cylinder, calipers, rotors, pulsation or vibration, squeaking, brake failure or wear.

What Owners Say

Antilock system (ABS)

"Warning light for abs sensor required a sensor part in rear left wheel be replaced."

Michael H., FL (2012 GMC Sierra 1500 SLE 5.3-L V8)

"The wires corroded leading to the rear speed sensors"

Anonymous, CT (2012 GMC Sierra 1500 SLE 5.3-L V8)
Premature brake wear

"squealing/metal-on-metal contact. I had the brakes checked/readjusted a few times, but the solution only lasted a few thousand miles. I was told it was the type of brake that was installed wasn't USA made"

Anonymous, SD (2012 GMC Sierra 1500 SLE 5.3-L V8)

Fuel System

Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.

What Owners Say

Fuel pump

"Chronic issue with the fuel pump leaked. Very dangerous! The pipe rusted out coming from the fuel pump to the injectors."

Anonymous, ON (2012 GMC Sierra 1500 SLE 5.3-L V8)
Sensors (includes O2 or oxygen sensor)

"engine light came on took to an independent shop , stated the problem codes were P0443 AND P0449 . and that the problem was the emissions computer. When I took it to the dealer they said it was the solenoids going to the computer and was not covered"

Jack D., TX (2012 GMC Sierra 1500 5.3-L V8)

Engine Cooling

Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.

What Owners Say

Radiator

"I brought the vehicle into a GM dealer for a multipoint inspection and have the passenger side low beam headlight replaced. They found nothing wrong and also said the headlight did not need replacing. The next day, while I was replacing the headlight, I noticed the radiator was leaking. The radiator needed to be replaced at a substantial cost. A week later I found a frozen gallon container of water loose in the engine compartment. I believe GM needs to supervise its dealers a little more closely."

Anonymous, BC (2012 GMC Sierra 1500 SLT 5.3-L V8)
Water pump

"Had to have it replaced"

Ricki E., AZ (2012 GMC Sierra 1500 SL 4.3-L V6)

Exhaust

Muffler, pipes, catalytic converter, exhaust manifold, leaks.

What Owners Say

Other/unsure

"One of the front impact sensors is going back and see periodic warning light."

Anonymous, (2012 GMC Sierra 1500 SLE 5.3-L V8)

Power Equipment

Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, remote engine start, alarm or security system

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