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2006 Gmc Sierra

The Verdict

45 Proceed with Caution

The 2006 Gmc Sierra has 279 owner complaints filed with NHTSA. The most reported issues are brakes (121 complaints) and body (62 complaints). With a Klunk Score of 45/100, it earns a "Proceed with Caution" rating.

This is the cleanest year on record. Nice pick.

45

Klunk Score: Proceed with Caution

About average for complaint volume. Research the specific issues before buying.

How is this calculated?

The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.

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Under the Hood

Each number is a complaint. Darker = bigger problem.

YearBodyBrakesElectricalEngineTransmission
2000186389437235
20011023262811320
2002110361276729
20031002541185942
2004942061786935
2005811341466621
200662121412827
200766481803810
200810911309285

By Category

Brakes
121
Body
62
Electrical
41
Engine
28
Transmission
27

By Severity

1
126
2
124
4
28
5
1

Worst Problems

Complaints

Electrical 2

The front impact sensor, also known as a crash sensor (part # 10370150), is no longer functional. It detects rapid vehicle deceleration during a frontal collision and sends an immediate signal to the Airbag Control Unit (ACU) to deploy airbags. Located behind the front bumper or on the radiator support, these sensors measure impact severity to ensure airbags deploy only when necessary. This part is no longer available from GM or any other aftermarket distributor. It is a critical part for any occupants in a crash. I am just one of many people who cannot make safety corrections.

5mo ago
Brakes 2

I WAS SOLD AN UNSAFE VEHICLE FOR WORK/COMUTE FAMILY. THE DEALERSHIP MISLEAD ME AND LIED TO ME ABOUT WARRANTY AND EVEN AFTER I PAID $10,0000 CASH I WAS WRONGFULLY DONE BY THIS BUSSINESS BY NO MEANS WAS THE BUSSINESS TRYING TO CONDUCT GOOD BUSSINESS WITH ME AND I ALSO HAVE A DISSABILITY AND A CHILD WITH A DISABILITY. Incident Date: 5/9/2024 Description: I PURCHASED A 2006 GMC SIERRA $10,000 CASH WAS GIVEN AND PAID OFF BUT I WAS SCAMMED BY THE DEALERSHIP. I BOUGHT THIS VEHICLE UNDER THE IMPRESSION THAT I WAS BEING SOLD A GOOD SAFE VEHICLE FOR WORK AND MY FAMILIES NEEDS ARE ALSO A PRIORITY. I NEVER TEST DROVE THE VEHICLE TILL I DROVE HOME AFTER PURCHASING IT. NOT EVEN 4 MINS ON THE ROAD AND I NOTICED THE ABS LIGHT CAME ON THE DASHBOARD WITH THE BRAKE LIGHT AND THE FRONT BRAKES BEGAN TO SMOKE. I CONTACTED THE DEALSHIP BUT WAS DISREGARDED AND NOT OFFERED AN EXCHANGE OR ANY TYPE OF SOLUTION FOR MY PROBLEM I EVEN EXPLAINED MY JOB REQUIRED ME TO USE MY VEHICLE FOR TRANSPORTING MATERIAL FOR WORK AND SINCE I WAS IN CHARGE OF 4 PEOPLE THAT WOUL BE REQUIREING SKILLS FOR CUSTOMER SERVICE AND MAKING SURE ALL CUSTOMERS WERE SATISFIED. PACIFI NORTHWEST MOTORSPORTS TOOK ADVANTAGE OF MY IMPARIMENT I FEELSCAMMED AND I WANT TO HAVE MY MONEY BACK OR AT LEAST EXCHANGE FOR THE VALUE OF $10,000. I WAS NEVER OFFERED ANY TYPE OF SLOUTION FROM THE BUSSINESS THE OWNER LAUGHED AT ME AND SAID THAT IT SUCKED TO BE ME AND HUNG UP THE PHONE ON ME. THE BUSSINNESS OWNER LIED TO THE ATTORNEY GENERALS OFFICE ABOUT OFFEREING ME A REMEDY THE ONLY REMEDY I WOULD CONSIDER IS MY MONEY BACK AND AN EXCHANGE FOR MY TROUBLES I feel that this is a vehicle manufacturer malfuncunctiom. I'm still having the sa,e problem with my brakes .. please help I have tried repairing the problem, numerous times to be unsuccessful .

16mo ago
Electrical 4

something shorted on or behind the dash on the drivers side and caught fire

17mo ago
Body 2

MY PASSENGER SIDE WHEEL BROKE AND WENT SIDEWAYS WHEN I TURN OFF THE HIGHWAY IN MONTZUMA ONLY GOING ABOUT 30MPH

65mo ago
Body 4

MY VEHICLE WAS TOTALED AND I SEE THEIR IS A RECALL FOR THE PITMAN ARM THAT CAN CAUSE TOTAL LOSS IF STEERING AND THAT IS WHAT HAPPENED TO ME

69mo ago
Body 2

I HAD A CRACK IN THE WINDSHIELD AND WHEN THEY REPLACED IT THE TECHNICIAN SAID IT WAS SO RUSTED FROM THE INSIDE THAT IF ANYTHING HAPPENED AGAIN THEY WOULD NOT REPLACE IT HE HAD TO REALLY DO SOME WORK AROUNDS HE SAID TO EVEN REPLACE THIS ONE. THAT MAKES ME FEEL THAT THIS IS A REAL SAFETY ISSUE IF WE WERE TO GET IN A SERIOUS ACCIDENT. THERE IS NO RUST ON THE OUTSIDE AROUND THE WINDSHIELD AT ALL. SO I WAS VERY SURPRISED WHEN THE TECHNICIAN TOLD ME THAT.

71mo ago
Brakes 1

BRAKES FAILED "COMPLETELY", WITH NO WARNING. NO "WARNING LIGHT" ON THE INSTRUMENT PANEL WHILE DRIVING ON A PUBLIC ROAD IN THE COUNTY. ALL OF A SUDDEN ABSOLUTELY NO BRAKES. HAD RECENTLY HAULED A CAR ON A TRAILER FROM EMPORIA, KANSAS. WAS PREPARING TO HAUL CALVES TO THE SALE BARN. NOW THAT WOULD HAVE BEEN A TOTAL DISASTER. UPON INSPECTION, THE BRAKE LINES ARE SO RUSTED, THAT PINCHING OFF THE LINE RESULTED IN A RUPTURE IN ANOTHER LOCATION. I WAS TRYING TO GET SOME BRAKING ACTION, SO I COULD DRIVE IT TO A REPAIR SHOP. I'LL HAVE TO HAUL IT. *TR

74mo ago
Electrical 2

TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. THE CONTACT STATED THAT THE HEATER BLOWER RELAY SWITCH WAS REPLACED HOWEVER, THE FAILURE RECURRED. THE CONTACT STATED WHILE VEHICLE WAS IN A STAND STILL, AND ATTEMPTING TO TURN ON THE AIR CONDITIONER, THE AIR CONDITIONER WAS INOPERABLE. THE CONTACT STATED THAT A DEALER WAS NOT CONTACTED. THE CONTACT STATED THAT THE HEATER BLOWER REPLAY SWITCH AND HARNESS NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 90,000. *BF THE CONSUMER STATED IN 2015 THE SWITCH WAS REPLACED, BUT IN 2020 IT WAS REPLACED AGAIN ALONG WITH THE MELTER WIRE HARNESS. *AS

74mo ago
Brakes 2

EVEN THOUGH MY TRUCK HAS ALWAYS BEEN GARAGE KEPT AND ONLY HAS 30 THOUSAND MILES ON IT, MY BRAKING SYSTEM WENT OUT WHILE DRIVING BECAUSE MY METAL BRAKE LINES ARE RUSTED . *TR

74mo ago
Brakes 1

BRAKE LINES BUSTED. THIS IS A VERY SERIOUS PROBLEM BECAUSE I WAS HAULING A LOAD AND GOT EXTREMELY EXTREMELY LUCKY THAT IT BUSTED AS I WAS PULLING IN DRIVEWAY. I WAS PULLING A LOADED TRAILER WITH NO BRAKES. THIS IS A VERY COMMON ISSUE WITH THE 2005 AND 2006 2500 TRUCKS. I CAN NAME 6 VEHICLES I KNOW OF IN THE PAST 6 MONTHS THAT THIS HAS HAPPENED TOO. MECHANIC SAYS IT'S A VERY SERIOUS AND COMMON ISSUE THAT GM SHOULD BE RECALLING. IF I WOULD HAVE BEEN AT A STOPLIGHT IT WOULD HAVE BEEN BAD. CHEAP MATERIALS IS THE PROBLEM WITH THESE BRAKE LINES. 2006 YEAR MODEL IS MINE.

77mo ago
Brakes 1

TL* THE CONTACT OWNS A 2006 GMC SIERRA 2500. THE CONTACT STATED THAT THE BRAKES WERE INEFFECTIVE AND EXCESSIVE PRESSURE HAD TO BE APPLIED TO THE BRAKE PEDAL TO FULLY STOP THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO SULLIVAN AUTOMOTIVE GROUP (2406 N SECTION ST, SULLIVAN, IN 47882, 812-268-4321), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 0. *BF *TR

85mo ago
Engine 2

FUEL GAGE SHOWS HALF A TANK BUT I RAN OUT OF GAS. LIGHTS BLOW ALL THETIME.

89mo ago
Brakes 1

ABS LIGHT KEEPS COMING ON WHILE DRIVING

92mo ago
Brakes 1

WHILE DRIVING AT LOW SPEEDS, ABOUT 20 MPH OR LOWER, THE BRAKE PEDAL FADES TO THE FLOOR. THERE ARE NO LIGHTS OR CODES AND BRAKE FLUID AT THE PROPER LEVEL. THIS HAPPENS QUITE FREQUENTLY AND ANYWHERE.

92mo ago
Brakes 1

TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 8 MPH AND ATTEMPTING TO STOP THE VEHICLE, THE ANTI-LOCK BRAKING SYSTEM SEIZED WITHOUT WARNING. THE FAILURE RECURRED SEVERAL TIMES. THE CONTACT CALLED CHAMPION CHEVROLET OF AVON AT 317-350-1023 (LOCATED AT 183 S COUNTY RD 525, AVON, IN 46123) AND A DIAGNOSTIC TEST WAS RECOMMENDED. THE TEST WAS NOT PERFORMED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 36,000.

93mo ago
Body 4

TL* THE CONTACT OWNED A 2006 GMC SIERRA 1500. WHILE THE CONTACT'S SON WAS DRIVING 30 MPH, THE POWER STEERING SEIZED AND THE VEHICLE DRIFTED AND CRASHED INTO THE GUARDRAIL OF A BRIDGE. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS TOTALED. A POLICE REPORT WAS FILED. THE DRIVER WAS INJURED, BUT DID NOT REQUIRE MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO A WRECKING YARD. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE FAILURE MILEAGE WAS 154,000.

94mo ago
Body 2

NOT ONLY DOES THE RIGHT SIDE MIRROR HAVE THE OBJECTS ARE CLOSER THAN IT APPEARS STYLE MIRROR USED FOR CARS MAKING IT IMPOSSIBLE TO USE FOR TOWING ( ON A TRUCK WITH A TOW PACKAGE ) IT HAS RED LIGHTS THAT FLASH IN THE MIRROR. NOT ONLY DOES THE FLASHING RED LIGHTS MAKE IT HARD TO SEE ANYTHING IN THE MIRROR AT NIGHT, IT MAKES IT ALMOST IMPOSSIBLE TO USE IT IN THE RAIN AT NIGHT, AS IT MAKES THE WATER DROPS ON THE WINDOW FLASH RED AS WELL . IT IS A SAFETY HAZARD THAT COULD ALSO BE A PROBLEM FOR SOMEONE WITH PHOTOSENSITIVE EPILEPSY (PSE) IS A FORM OF EPILEPSY IN WHICH SEIZURES ARE TRIGGERED BY VISUAL STIMULI THAT FORM PATTERNS IN TIME OR SPACE, SUCH AS FLASHING LIGHTS; BOLD, REGULAR PATTERNS; OR REGULAR MOVING PATTERNS.

95mo ago
Brakes 1

IN THE CITY STOPPING FOR A STOPLIGHT THE BRAKES FAILED. THE VEHICLE LUCKILY WAS ABLE TO TURN INTO A PARKING LOT. ALL FLUID WAS LOST BECAUSE THE BRAKE LINES FAILED DUE TO RUST. NO BRAKES WHATSOEVER EXCEPT EMERGENCY BRAKE. MY STATE EVEN REQUIRES A SAFETY INSPECTION YEARLY. IF THE CONSUMER IS NOT GOING TO BE NOTIFIED OF THIS SERIOUS PROBLEM AT LEAST LET THE SAFETY INSPECTORS KNOW.

96mo ago
Electrical 2

TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 35 MPH, THE FORTY TWO VOLT CHARGING WARNING INDICATOR ILLUMINATED. DUE TO THE WARNING, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER. THE CONTACT TURNED OFF THE VEHICLE AND IT FAILED TO RESTART. THE VEHICLE WAS TOWED TO JOHN PAUL'S BUICK GMC (3615 S 108TH ST, GREENFIELD, WI 53228, (414) 208-4113) WHERE IT WAS DIAGNOSED THAT THE GENERATOR STARTER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED DUE TO THE PART NO LONGER BEING MANUFACTURED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 92,350.

97mo ago
Brakes 2

I TOOK OUR TRUCK IN FOR SERVICING AT THE O'NEILL GMC DEALERSHIP IN WARMINSTER, PA AND WAS TOLD THAT ALL OF OUR BRAKE LINES NEEDED TO BE REPLACED DUE TO RUSTING. WE PURCHASED OUR VEHICLE NEW FROM O'NEILL AND HAVE CONTINUED TO HAVE IT SERVICED THERE. THE TRUCK IS TREATED WITH GREAT RESPECT AND ONLY HAS 40,000 MILES ON IT. I CONTACTED GMC DUE TO THE DEFECTIVE MATERIALS OF THE VEHICLE THEY SOLD US AND THEY CLAIM THAT THIS IS NORMAL. I NOW AM STRAPPED WITH A BILL FOR $2700.00 TO REPLACE ALL FOUR DEFECTIVE, RUSTING BRAKE LINES THEIR WEBSITE SAYS CUSTOMER SATISFACTION GUARANTEED. I BELIEVE GMC SHOULD CONTRIBUTE $1700 TOWARDS THE BILL. I NOTE THAT THERE ARE OVER TEN PAGES OF COMPLAINTS ON THE INTERNET REGARDING CORROSION PROBLEMS. PLEASE HOLD GMC ACCOUNTABLE. THIS VEHICLE WAS PURCHASED IN GOOD FAITH AND THEY SHOULD ADMIT RESPONSIBILITY FOR THEIR INFERIOR BRAKE LINE MATERIALS. I AM DISAPPOINTED WITH GMC'S EXCUSES AND NONSENSE. I TOLD THEM THEY SHOULD PAY $1700 OUT OF THE MONEY THEY BANKED FROM THE EXPIRED, EXTENDED WARRANTY WE PURCHASED. THIS IS A GMC ISSUE; NOT A [XXX] ISSUE. AGAIN, PLEASE HOLD THEM RESPONSIBLE FOR SELLING A DEFECTIVE TRUCK. THANK YOU, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

98mo ago

279 total

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