Most common 2006 Buick Rainier problems
Share of the 91 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Buick Rainier complaints by model year
Best Rainier years: 2007. Years to avoid: 2004. Compare all years →
2006 Buick Rainier recalls (7)
Visibility › Power window devices and controls
General Motors LLC (GM) is recalling certain model year 2006-2007 Buick Rainier, Chevrolet Trailblazer and GMC Envoy vehicles, and 2006 GMC Envoy XL and Chevrolet Trailblazer EXT vehicles.
Remedy: GM will notify owners, and dealers will install a new driver's door switch module, free of charge. The recall began on November 2, 2015.
Exterior lighting › Headlights
General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles.
Remedy: GM will notify owners, and dealers will replace the HDM, free of charge. The recall began on May 17, 2016. Owners may contact Buick customer service at 1-800-521-7300 or Pontiac customer service at 1-800-762-2737.
Visibility › Power window devices and controls
General Motors LLC (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles.
Remedy: GM will notify owners, and dealers will inspect the part number on the door module, and install a new door module if necessary, free of charge. Parts for the remedy are not currently available.
Visibility › Power window devices and controls
General Motors (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board.
Remedy: Owners will be contacted and dealers will test the driver's door module. If the module is functioning properly, a protective coating will be applied. If the module is not functioning properly, it will be replaced.
Visibility › Power window devices and controls
General Motors (GM) is recalling certain model year 2006 Chevrolet Trailblazer EXT and GMC Envoy XL and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, SAAB 9-7x, and Isuzu Ascender vehicles, originally sold or currently registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts,…
Remedy: Parts for this recall are expected to available in March 2013. GM will notify Buick, Chevrolet, and GMC owners when parts are available.
Equipment › Other › Labels
Certain trucks and sport utility vehicles fail to conform to the requirements of federal motor vehicle safety standard no. 110, "tire selection and rims." these vehicles were shipped with tire and loading information labels listing an inacccurate vehicle capacity weight.
Remedy: Owners will be provided with corrected labels and installation instructions. At the customer's option, a dealer can install the label for them. The recall began on March 31, 2006.
Show 1 more recall
Steering › Hydraulic power assist › Hose, piping, and connections
Certain passenger vehicles May have been built with a power steering hose that is not to specification. Under extreme steering maneuvers, such as turning the steering wheel fully to the left or right while braking, the hose May fracture and leak fluid.
Remedy: Dealers will inspect the power steering hose(s) for two suspect date codes and replace them if required. The recall will begin on October 14, 2005.
NHTSA defect investigations
Federal safety investigators have looked into 4 possible defects involving the 2006 Buick Rainier:
Loss of Headlights
The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV.
Fuel level gauge system failure
The office of defects investigations (ODI) analyzed complaint data provided by General Motors (GM) as well as complaints submitted to ODI from consumers.In total, there were 5,089 unique reports indicating an inaccurate fuel level reading while driving.General Motors stated that this condition occurs when the contacts of the fuel sensor wear prematurely.Most of the complaints indicated an empty fuel gauge reading…
Driver's Master Power Window Switch
On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New…
Fuel Level Gauge System Failure
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than…
What 2006 Buick Rainier owners say
Fuel & propulsion system all 35 →
In driving cross country, filled up the fuel tank and resumed travel when the fuel gauge immediately went to empty (I didn't even have time to drive up the highway ramp back onto the highway). The alerts started ringing and blinking and dash board told me there was no fuel. I went to a gravel area and inspected the engine compartment, under the car and the interior to be sure I was not missing anything, then restarted the SUV. Could not find any issues anywhere, including leaking fuel. I took off the fuel cap and reattached it to be sure there was no problem there. I had no choice but to get on the highway and continue my journey. The problem continued for the following 1000 ish miles. When I got home I contacted my dealer and set up an appointment to look at vehicle. They found the vehicle needing a sensor kit which was a recall back a few years ago. …
Tl* the contact owns a 2006 Buick Rainier. While driving 40 MPH, the vehicle jerked violently without warning. In addition, the power windows were jammed and would not wind up or down. The contact stated that the vehicle also leaked fuel onto the ground. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The VIN was invalid. The failure mileage was 105,000.
Electrical system
The contact owns a 2006 Buick Rainier. The contact stated that while the vehicle was parked in his driveway, the contact attempted to use the remote starter key fob to unlock the doors, but the doors failed to unlock. The contact stated that he manually unlocked the doors. The contact stated that he manually attempted to start the vehicle, but the vehicle failed to start. The anti-theft warning light remained illuminated. The contact stated that while the vehicle was being lifted onto the tow truck, he was informed by the tow truck driver that the driver's side wiring harness had melted. The vehicle was towed to an independent mechanic where it was diagnosed that the wiring harness had melted and needed to be replaced. The vehicle was not repaired. The dealer nor manufacturer were notified of the failure. The failure mileage was approximately 168,000.
Low beam lights go off intermittently while driving and eventually come back on. This does not affect high beams or any other lights on the vehicle. But causes a serious danger to my needing to drive at night due to my job.
Lights
Tl* the contact owns a 2006 Buick Rainier. While the vehicle was parked, the contact noticed that the passenger side low beam headlight blew out. The contact replaced the bulb; however, the failure recurred and the headlight socket melted. The contact repaired the vehicle. The failure recurred on the driver side low beam headlight. The contact stated that the VIN was not included in NHTSA campaign number: 14V755000 (exterior lighting). The manufacturer was made aware of the failure. The approximate failure mileage was 100,000.
While driving at night, the headlights go out. Leaving only the brights or fog lights operatable. They some times will come back on, but other times not at all. This is sporatic, with no rythme or reason. Driving at night for over a half hour with only your brights is extremely dangerous. Other motorists flash their lights at you if you have your brights on, or if only the fog lights are on, other motorists will flash their lights also. Driving with only the fog lights in rural areas, then being blinded by on coming vehicles is a nightmare. I drive to work at 5:30 am, always in the dark, on rural roads with no streetlights. When the head lights go out, while I am on a curve, and I have a semi barreling at me at 60mph, all I can say, is I'm thankful I can tell the story. …
2006 Buick Rainier engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 5.3L 8-cyl | 4-speed automatic | RWD | 14 / 20 / 17 |
| 4.2L 6-cyl | 4-speed automatic | RWD | 14 / 20 / 16 |
| 4.2L 6-cyl | 4-speed automatic | 4WD/AWD | 14 / 20 / 16 |
| 5.3L 8-cyl | 4-speed automatic | 4WD/AWD | 14 / 20 / 16 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2006 Buick Rainier a good car?
Based on 91 owner complaints filed with NHTSA, the 2006 Rainier rates average: about as many complaints as a typical year of the Rainier at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2006 Buick Rainier?
The fuel & propulsion system — 35 complaints, 38% of all complaints for this model year, most often about storage › fuel gauge system. Next are the electrical system (17) and lights (12).
How many recalls does the 2006 Buick Rainier have?
There are 7 recalls for the 2006 Buick Rainier, the most recent from September 24, 2015 (power window devices and controls). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Buick Rainier?
The best years by complaints, compared at the same age, are 2007. Years to avoid or approach with caution: 2004. See the full Buick Rainier years comparison.
At what mileage do 2006 Buick Rainier problems happen?
The median mileage reported in complaints is about 75,000 miles; 17% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.