2006 GMC Sierra 1500 Reviews, Ratings, Prices - Consumer Reports
The GMC Sierra (and its Chevrolet Silverado twin) will be replaced this fall by a truck based on the new Chevrolet Tahoe. The 2004 Z71 Silverado that we tested had a stiff, choppy ride. Other trim lines ride slightly better. Braking is adequate, and fit and finish is unimpressive. The powertrain isn't as smooth as competing models from Toyota or Nissan.
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).
NA
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).
NA

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 GMC Sierra (and its Chevrolet Silverado twin) will be replaced this fall by a truck based on the new Chevrolet Tahoe. The 2004 Z71 Silverado that we tested had a stiff, choppy ride. Other trim lines ride slightly better. Braking is adequate, and fit and finish is unimpressive. The powertrain isn't as smooth as competing models from Toyota or Nissan. The Sierra's assets are a selectable, full-time, four-wheel-drive system and a generous load capacity. The Denali is an expensive AWD model with a 6.0-liter V8. The extended-cab hybrid version has a claimed 12 percent boost to fuel economy.
Seating
3 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
  • 5-speed Manual
  • 4-speed Automatic
Engines Available
  • 4.3-liter V6 (195 hp)
  • 4.8-liter V8 (285 hp)
  • 5.3-liter V8 (295 hp)
  • 5.3-liter V8 (310 hp)
  • 6-liter V8 (345 hp)
  • 6-liter V8 (300 hp)

Owner Reported Trouble Spots

The Reliability score is based on our latest subscriber survey of 2006 GMC Sierra 1500 owners. The owner comments describe problems respondents experienced with this vehicle.

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

"clock doesn't work continues to revert to 12:00 & interior lights and radio don't shut off when door is opened then closed"

Anonymous, KS (2006 GMC Sierra 1500 SLE)
Exterior lights (other than headlights)

"The relay for the tail lights and blinkers malfunctioned"

Anonymous, MD (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Running lights replaced"

Anonymous, NV (2006 GMC Sierra 1500 SLT 6.0-L V8)
Gauges

"replaced oil pressure guage"

Anonymous, IL (2006 GMC Sierra 1500 SLE 5.3-L V8)

"instrument panels lighting randomly dims or brightens, or all or some of the backlighting shuts off. dealership unable to locate and resolve the problem. also affects exterior lights at times."

Anonymous, MO (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Interior gauges and heating system stopped working. Heat system fan only works on high. Gauges for speed, etc stopped working."

Anonymous, (2006 GMC Sierra 1500 SL 4.8-L V8)

"Speedometer and oil gauge ceased to work"

Anonymous, CA (2006 GMC Sierra 1500 SLE 4.3-L V6)
Headlights

"Randomly my headlights would flicker and dim. Probably 60 to 70 percent of the time they worked great. It is very disconcerting to have your headlights flicker as you are driving down the road in the dark. They never went out though."

Anonymous, KS (2006 GMC Sierra 1500 SLE 5.3-L V8)

"water got inside the headlight and broke it"

Anonymous, NY (2006 GMC Sierra 1500 SLE)

"Needed to upgrade headlights & running lights & fuses"

Anonymous, KY (2006 GMC Sierra 1500 Denali 6.0-L V8)
Heated or cooled seats

"They stopped working several years ago."

Anonymous, (2006 GMC Sierra 1500 SL 4.8-L V8)

"Several attempts to fix. Unable"

Anonymous, NC (2006 GMC Sierra 1500)
Interior lights

"Back lighting in dash and steering wheel are burning out. Bulbs are soldered rather than plug-in. Replaced steering wheel switches. Other lights will just have to out."

Chris H., AL (2006 GMC Sierra 1500 SLE 5.3-L V8)

"They dimmed as the headlights would dim. Not necessarily at the same time but sometime both happended at the same time. They never went out though."

Anonymous, KS (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Interior lights don't shut down with opening and closing of door after engine is turned off"

Anonymous, KS (2006 GMC Sierra 1500 SLE)

"Some dashboard and steering wheel instrument lights not working"

Anonymous, AB (2006 GMC Sierra 1500 SL 5.3-L V8)

Paint/Trim

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

What Owners Say

Loose interior trim or moldings

"When door was removed to replace window, door light came off and black sealing material was all over the door panel"

Anonymous, NC (2006 GMC Sierra 1500 4.8-L V8)
Paint (fading, chalking, cracking, or peeling)

"Blitering and peeling due to rust"

Art P., ON (2006 GMC Sierra 1500 4.3-L V6)

"Top of vehicle paint fading, peeling"

Anonymous, CA (2006 GMC Sierra 1500 4.8-L V8)
Rust

"Rocker panela rusted both sides of vehicle"

Richard Z., NY (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Rust on frame. Some likely due to previous owner's use towing boat and launching in ocean. Unsightly. But a cross beam was re-placed, required welding under bed of truck. $$"

Anonymous, CT (2006 GMC Sierra 1500 5.3-L V8)

"Rocker panels , fender wheel wells and bumpers rusted in two years"

Anonymous, MI (2006 GMC Sierra 1500 SLE 5.3-L V8)

"tHE RUST PATTEN ON THIS VEHICLE IS ON ALL FOUR WHEEL AREAS - ABOVE THE WHEEL. iT IS A HALF MOON SHAPED RUSTING AND CORRODING AREA. I HAVE SEEN THIS ON OTHER SIERRAS THE SAME AS MINE. I DO BELIEVE IT TO BE A MANUFACTURING DEFECT. i CALLED GM HEADQUARTERS ABOUT THE PROBLEM BEING SO VISIBLE ON MANY SIERRAS, BUT THEY NATURALLY SAID THERE WAS NO MANUFACTURING PROBLEM. i THINK CR SHOULD CONTACT THEM TO ASK ABOUT THAT PROBLEM."

Anonymous, VT (2006 GMC Sierra 1500 6.0-L V8)

"ROCKER PANELS ARE RUSTED THROUGH. I HAD TO REPLACE THE TAILGATE DUE TO RUST."

Richard Z., NY (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Obviously poorly painted/treated body. the rust spread quickly and severely to the point pieces of body are falling off"

Anonymous, MO (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Truck box is disintegrating"

Art P., ON (2006 GMC Sierra 1500 4.3-L V6)

"seems that the GMC Sierra typically has a rust significant rust problem. doesn't pose any problem in operation but looks terrible"

Thomas B., CT (2006 GMC Sierra 1500 5.3-L V8)

"Lower panel on both sides"

Anonymous, IL (2006 GMC Sierra 1500 SLE 5.3-L V8)

"support cross beam rusted loose. welded new cross support repair cost more than $1000"

Thomas B., CT (2006 GMC Sierra 1500 5.3-L V8)

"I paid $6,000. to have the rusty rocker panels repaired. Also, engine and brake line components had to be replaced due to rust"

C M., NY (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Rocker panel completely gone due to rust, this seems to be a continuing problem for GM our older GMC pickup has the same issues, also rear bumper has holes through it"

Bernard D., OH (2006 GMC Sierra 1500 SLE 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

Power steering leaks

"gear box input shaft seal leaking steering pump and lines leaking due to corosion"

Tony B., ME (2006 GMC Sierra 1500 SLE 5.3-L V8)
Power steering pumps and hoses

"cooling radiator linking"

Anonymous, IL (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Pump had to be replaced, very costly"

Anonymous, NC (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Leaks in hoses & pump replacement"

Thomas B., ME (2006 GMC Sierra 1500 5.3-L V8)
Steering linkage (includes rack and pinion)

"Leaking R & P unit causing poor steering"

Anonymous, WI (2006 GMC Sierra 1500 WT 4.3-L V6)

"Crunching feel in steering wheel wirth turn left on steering wheel. Problem was design problem in steering wheel shaft. Portion of the shaft replaced with nylon bushing componet at my expense even though it was a faulty design defect"

Anonymous, DE (2006 GMC Sierra 1500 SLT 5.3-L V8)

"During warranty period they said it was fine and to ignore the noise once out of warranty it needed to be replaced for safety they said"

Anonymous, WI (2006 GMC Sierra 1500 SLT 5.3-L V8)
Tie rods

"Tie rods were prematurly worn. Replacement was a safety factor and failed the annual inspection. Replacement cost over $800.00 as touch much"

R C., NC (2006 GMC Sierra 1500 SLE 5.3-L V8)
Wheel bearings

"Left front wheel bearing was growls and I drove to dealer for repair."

Joseph P., FL (2006 GMC Sierra 1500 SLE 4.8-L V8)

"Wheel bearing failure was causing intermittent ABS "chatter""

Anonymous, NH (2006 GMC Sierra 1500 SLT 5.3-L V8)

"The left front wheel bearing went out at around 98,000 miles. The dealer replaced it with a life time bearing. Of coarse I had to pay for it"

James R., WI (2006 GMC Sierra 1500 SLT 5.3-L V8)

"I had to replace the two front wheel hubs"

Anonymous, IL (2006 GMC Sierra 1500 4.3-L V6)

"Replaced 2 right-side front wheel hubs within 12 miles. Bad wheel bearings. Also inoperative speed sensors"

Anonymous, PA (2006 GMC Sierra 1500 WT 5.3-L V8)

"This is the second time we had to replace the front driver side wheelbearing, the first time it caught on fire"

Anonymous, WI (2006 GMC Sierra 1500 SLT 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)

"The ABS Electronics Module failed and the mechanic said that this is common on this vehicle"

Stuart B., LA (2006 GMC Sierra 1500 SLE 5.3-L V8)

"soft pedal, ABS system had to have air removed from system"

Jace A., MA (2006 GMC Sierra 1500 WT 4.3-L V6)

"ABS works when it shouldn't"

Anonymous, TN (2006 GMC Sierra 1500 5.3-L V8)

"sensing device failed"

Anonymous, MI (2006 GMC Sierra 1500 SLE 4.8-L V8)
Master cylinder

"Had info on dashboard"‿check brake systems Repaired it the next day"

Anonymous, (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Failure of master cylinder"

Anonymous, MA (2006 GMC Sierra 1500 SL 5.3-L V8)
Normal routine brake wear

"Normal brake wear"

Anonymous, GA (2006 GMC Sierra 1500 WT 5.3-L V8)

"Had to replace all brake fluid lines...rusted out"

Anonymous, NH (2006 GMC Sierra 1500 SLT 5.3-L V8)
Premature brake wear

"front brake wear to low miles"

Anonymous, CO (2006 GMC Sierra 1500 SLE 5.3-L V8)
Regular brake failure

"Brakes suddenly stopped working due to leak in a rusted brake line! These brake lines have failed in the past."

Ilona S., MA (2006 GMC Sierra 1500 WT 4.3-L V6)

"normal wear"

Anonymous, CO (2006 GMC Sierra 1500 SLE 5.3-L V8)
Rotors

"Old age"

Anonymous, MI (2006 GMC Sierra 1500)

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

Emission control devices (includes EGR)

"Check engine light stays on. Had many parts replaced by professionals but to no avail. The light come back on after each repair."

Sid S., MS (2006 GMC Sierra 1500)

"Engine CK light comes on and had to replace a Emission gas return pump. Engine light came back on and have no idea whats wrong this time"

George W., WA (2006 GMC Sierra 1500 SLT 5.3-L V8)
Fuel cap

"Every time we take it to the emissions testing facility, it fails."

Anonymous, MD (2006 GMC Sierra 1500)

"changed fuel cap but chk eng light came back on"

R K., WA (2006 GMC Sierra 1500 4.8-L V8)
Fuel gauge/sender

"Just recently started. Guage nettle does not move and low fuel light is on. Presently, monitor fuel usage."

Anonymous, (2006 GMC Sierra 1500 SLE 5.3-L V8)
Sensors (includes O2 or oxygen sensor)

"FUEL TANK PRESSURE SENSOR FAILURE. YOU HAVE TO DROP THE FUEL TANK TO REPLACE. POOR DESIGN."

Richard Z., NY (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Check engine light illuminated. OBD II reader identified the problem."

Anonymous, LA (2006 GMC Sierra 1500 SLT 5.3-L V8)

"O2 sensors failed at about 120000 miles. Pretty routine"

Anonymous, GA (2006 GMC Sierra 1500 WT 5.3-L V8)

"Had to replace"

Anonymous, IL (2006 GMC Sierra 1500 SLE 5.3-L V8)

"check engine light keeps coming on"

R K., WA (2006 GMC Sierra 1500 4.8-L V8)

"Sensor indicated "check engine light". Fuel cap check was too sensitive, but after 2 service checks, a sensor was finally found to be at fault & was changed"

Anonymous, LA (2006 GMC Sierra 1500 4.8-L V8)

Climate System

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

What Owners Say

A/C compressor

"The compressor began to be noisy and was told that it was coming apart. It needs to be replaced to the tune of $1250. I now have needed air but no A/C for comfort."

Anonymous, (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Compressor went out, after repaired it still goes on and off regularly even when first turned on."

Anonymous, (2006 GMC Sierra 1500 SLE 5.3-L V8)
Automatic climate control

"AC running and cold than heater comes on. You have to turn the truck off and back on to get the ac back on. Sometimes the fan won't work. Same thing, turn truck off and back on."

Chris A., LA (2006 GMC Sierra 1500 SLT 5.3-L V8)

"The air-conditioner will start blowing hot air. This is an annoying intermittent issue. Have tried to repair. Not an easy accessible fix. Tried and it worked for a while but did not last. Will respond for a while if temp lever is readjusted. Frustrating, but not worth the effort to take the time and effort to get to the parts to replace the thermostat."

Anonymous, (2006 GMC Sierra 1500 SL 4.8-L V8)

"Blender valve required replacing"

Anonymous, TX (2006 GMC Sierra 1500 SLT 5.3-L V8)

"gate valve not operating"

Kay S., SC (2006 GMC Sierra 1500 SLT 6.0-L V8)
Blower (fan) motor

"Blower will not operate on selection 2 and 5."

Sid S., MS (2006 GMC Sierra 1500)

"In addition, the fan motor stopped working requiring replacement"

Kenneth C., TX (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Fan does not work on highest setting. There is a recall for this but I have not pursued it because the cab area is so small the highest setting is never needed anyway"

James C., NC (2006 GMC Sierra 1500 WT 4.3-L V6)
Electrical failure

"The electrical wiring (connector) going to the resistor and relay for the fan melted. I had to replace the resistor/relay assembly and vehicle wiring connector"

Kenneth C., TX (2006 GMC Sierra 1500 SLE 5.3-L V8)
Heated or cooled seat controls

"Heated seats turns them self on. I had to unplug them."

Chris A., LA (2006 GMC Sierra 1500 SLT 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

"NOISY AND SQUEAKY DOOR LOCKS"

Anonymous, VT (2006 GMC Sierra 1500 6.0-L V8)
Tailgate, hatch or trunk

"Tailgate has completely rusted out. I had to remove it."

Ilona S., MA (2006 GMC Sierra 1500 WT 4.3-L V6)

"Latch won’t latch unless tailgate is slammed shut several times"

Anonymous, MI (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Tailgate latch breaks regularly and needs to be fixed"

Anonymous, NM (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Tail gate latch stopped working. Had to be repaired"

C M., NY (2006 GMC Sierra 1500 SLE 5.3-L V8)
Windows

"Right rear window mechanism had to be replaced, tailgate latch breaks regularly, paint on roof has faded"

Anonymous, NM (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Left rear window quit operating"

Anonymous, NC (2006 GMC Sierra 1500 4.8-L V8)

Transmission Major

Transmission rebuild or replacement, torque converter, clutch replacement.

What Owners Say

Torque converter

"Definitely should not have failed at around 75000. No extreme use conditions at all"

Anonymous, OK (2006 GMC Sierra 1500 4.8-L V8)
Transmission rebuild or replacement

"Mechanic said it was cheaper to replace the transmission than fix the old one."

Joe C., CA (2006 GMC Sierra 1500 SLT 5.3-L V8)

"bad shift from first to second required replacement"

Joe C., CA (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Mechanic said new transmission vs. a take-apart would be cheaper"

Joe C., CA (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Bad torque converter led to decision to rebuild transmission as a precaution and a fair cost at the local shop"

Anonymous, OK (2006 GMC Sierra 1500 4.8-L V8)

"I work construction and drive to Chicago from the suburbs every day. Lots of stop and go traffic.Last June on the way into work I heard a noise and the trans started slipping. Made it to work and back home.Took it in to a trans shop and had a complet"

Gary N., IL (2006 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

Other/unsure

"Gears were not installed properly. Had them replaced twice and adjusted once. Was covered by warranty"

Gary E., AB (2006 GMC Sierra 1500 SLE 4.3-L V6)
Seals and/or weather-stripping

"The seal around the truck top had to be replaced twice now. It doesn't appear to stay 'stuck on' in certain areas. Went to 2 different places and it still comes out the same after it's replaced"

Cathy C., IL (2006 GMC Sierra 1500 SLE)

"i just did"

Craig W., OR (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Seals around sun roof failed, and rain leaked/poured in"

Anonymous, GA (2006 GMC Sierra 1500 SLE 5.3-L V8)
Squeaks or rattles

"There was a problem with one of the back tires. The area around it had to be replaced"

Cathy C., IL (2006 GMC Sierra 1500 SLE)
Wind noise

"Door seals/window seals in extended cab are shot. LOTS of noise/dust"

Craig W., OR (2006 GMC Sierra 1500 SLT 5.3-L V8)

Transmission Minor

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

What Owners Say

Coolers and lines

"My trans line started to leak in January. They were rusted out due to all of the salt they use here in the Midwest"

Gary N., IL (2006 GMC Sierra 1500 SLE 5.3-L V8)
Rough shifting

"tranny yoke shifting rough. dealer stated they would replace but the roughness would remain, it still is rough (audible noise up and down shifting)"

Anonymous, MN (2006 GMC Sierra 1500 SL 4.8-L V8)

"minor shifting issue between first & 2nd gear"

Joe C., CA (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Slam-shifts in early gears"

Joe C., CA (2006 GMC Sierra 1500 SLT 5.3-L V8)
Transmission sensor or solenoid

"4 wheel drive shift motor malfunction, replaced the wiring harness to the shift motor"

Steven S., CA (2006 GMC Sierra 1500 SLT 5.3-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

4WD/AWD components

"Control units for 4WD system failed and had to be replaced"

Judy S., CO (2006 GMC Sierra 1500 SLT 5.3-L V8)

"Switch on 4X4 system had to be replaced even though the system claimed a pump needed to be replaced. This problem is a large problem for GMC 4X4's with little information from GMC on the subject. Private mechanic fixed the problem"

George W., WA (2006 GMC Sierra 1500 SLT 5.3-L V8)
Electrical failure

"Electrical glitches like fasten seat belt warning, intermitant fog lights,"

Richard Z., NY (2006 GMC Sierra 1500 SLE 5.3-L V8)
Transfer case

"Wear and tear, required rebuilding"

Anonymous, MN (2006 GMC Sierra 1500 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

"Engineer is leaking oil in cylinder creating smoking"

Anonymous, GA (2006 GMC Sierra 1500 SL 4.8-L V8)
Engine rebuild or replacement

"Camshaft wear"

Walter B., TX (2006 GMC Sierra 1500 SLE 5.3-L V8)

"started burning oil. replaced engine"

Lloyd A., LA (2006 GMC Sierra 1500 SLE 5.3-L V8)

"Flat spots on camshaft"

Anonymous, TX (2006 GMC Sierra 1500 SLE 5.3-L V8)

Engine Minor

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

What Owners Say

Engine computer

"Can't identify the problem with the computer readout. Light on all the time. Truck runs"

Anonymous, (2006 GMC Sierra 1500 SL 4.8-L V8)
Engine knock or ping

"slight knock from collapsed lifter, completed full engine rebuild due to mileage, rather than just lifter replacement"

Anonymous, KY (2006 GMC Sierra 1500 SLT 5.3-L V8)

"When we start the engine the cylinders are rattling. We have used additives and helped for short time. We will be replacing engine or rebuilding"

Anonymous, FL (2006 GMC Sierra 1500)

Exhaust

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

What Owners Say

Exhaust manifold

"two exhaust mtg bolts broke off"

Anonymous, WI (2006 GMC Sierra 1500 Denali 6.0-L V8)
Other/unsure

"airbag light on, all the tme"

Anonymous, IL (2006 GMC Sierra 1500 SLE 5.3-L V8)

Engine Cooling

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

What Owners Say

Antifreeze leaks

"Antifreeze is leaking could be in connection with the engine problem"

Anonymous, FL (2006 GMC Sierra 1500)
Radiator

"radiator clamps were installed incorrectly"

Anonymous, MI (2006 GMC Sierra 1500 SLE 4.8-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

What Owners Say

Battery (not hybrid or electric)

"Battery dies when parked for more than a couple weeks"

Anonymous, CO (2006 GMC Sierra 1500 SLE 5.3-L V8)
Starter

"After sitting for approximately 24 hours, vehicle would not start, nor even try"

Anonymous, FL (2006 GMC Sierra 1500 SLE 5.3-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

CD player

"factory installed cd system needed major repair after 6 years and now does not work at all"

Anonymous, CA (2006 GMC Sierra 1500 SLE 4.3-L V6)
Speakers

"Three of the four speakers in the stereo system abruptly stopped working at the same time. One of the three attempted a comeback but failed"

Anonymous, BC (2006 GMC Sierra 1500 SLE 4.3-L V6)
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