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2006 Buick Rainier Recalls, Problems & Maintenance

The 2006 Buick Rainier has no open NHTSA recalls. Owners report 7 recurring issue clusters, led by “Fuel gauge misreading from failed sensor.” Buick uses the GM Oil Life System: an algorithm tracks engine revolutions and temperature, then lights the change-oil message — typically every 7,500 miles in mixed driving, capped at 12 months, using dexos-approved oil. Current Encore GX and Envista run 1.2/1.3L turbo three-cylinders where oil quality matters more than volume drivers expect (the sump is small and turbo-heated). Front-drive models pair to a CVT with a published fluid interval — it is not a lifetime part.

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No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 2006 Buick Rainier.

Reported to NHTSA

Fuel gauge misreading from failed sensor

FUEL SYSTEM, GASOLINE

36 NHTSA complaints · 2010-08 → 2022-01

“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”
— Owner report, NHTSA ODI #11448952
“THIS TUESDAY AS I WAS DRIVING DOWN A MAJOR HIGHWAY WITH MY 2 YEAR OLD DAUGHTER, MY 2006 BUICK RAINIER TURNED OFF AND CAME TO A COMPLETE STOP. IT WAS FREEZING COLD AND WE WERE ON A MAJOR HIGHWAY, LUCKILY I WAS ABLE TO COAST TO THE SHOULDER AND NO ONE WAS HURT”
— Owner report, NHTSA ODI #10442605
“THE GAS GAUGE BEGAN READING EMPTY WHEN IT WAS ACTUALLY FULL. THIS STARTED IN SPRING 2010 WITH THE ODOMETER READING ABOUT 65K. WHEN THE TANK IS INITIALLY FILLED THE GAUGE WILL READ FULL, THEN GO DOWN UNTIL THE GAUGE READ EMPTY”
— Owner report, NHTSA ODI #10422272

Read all complaints on NHTSA →

Headlights failing or dimming intermittently

EXTERIOR LIGHTING

11 NHTSA complaints · 2006-12 → 2017-09

“TL* THE CONTACT OWNS A 2006 BUICK RAINIER. THE CONTACT STATED THAT WHILE DRIVING AT 35 MPH, THE LOW BEAM HEADLIGHTS FAILED WITHOUT WARNING. THE CONTACT STATED THAT THE HIGH BEAM LIGHTS WERE ACTIVATED IN ORDER TO VIEW THE ROAD”
— Owner report, NHTSA ODI #10852073
“REGARDING EXTERIOR LIGHTING- WHILE DRIVING AT NIGHT -THE HEADLIGHTS WILL SUDDENLY GO OFF & STAY OFF FOR A PERIOD OF TIME.SOMETIMES THEY WILL COME BACK ON & STAY & OTHER TIMES JUST STAY OFF. IT WAS NOT HAPPENING EVERY TIME,BUT NOW SEEMS TO DO IT MORE FREQUENTLY”
— Owner report, NHTSA ODI #10811731
“HEADLIGHTS GO FROM BRIGHT TO DIM 4-7 TIMES/MINUTE WHEN DRIVING. DEALER REPLACED ALTERNATOR, DID NOT HELP. THIS WILL HAPPEN ON SOME OCCASIONS ONLY. *NM”
— Owner report, NHTSA ODI #10177421

Read all complaints on NHTSA →

Door lock, latch, and handle failure

ELECTRICAL SYSTEM, LATCHES/LOCKS/LINKAGES

8 NHTSA complaints · 2012-08 → 2019-10

“TL* THE CONTACT OWNS A 2006 BUICK RAINIER. AFTER PARKING THE VEHICLE, THE FRONT DRIVER SIDE EXTERIOR DOOR HANDLE FRACTURED. THE CONTACT HAD TO ENTER THE VEHICLE THROUGH THE PASSENGER DOOR”
— Owner report, NHTSA ODI #10985113
“TL* THE CONTACT OWNS A 2006 BUICK RAINIER. THE CONTACT STATED THAT THE EXTERIOR DRIVER LATCH BECAME LOOSE AND THE DRIVER'S SIDE DOOR LATCH WOULD NOT OPEN”
— Owner report, NHTSA ODI #10596064
“DRIVER'S DOOR MODULE, POWER DOOR LOCK AND POWER WINDOW SWITCHES FUNCTION INTERMITTENTLY AND BECAME INOPERATIVE. I TOOK IT TO DEALERSHIP AND THIS WAS THE PROBLEM”
— Owner report, NHTSA ODI #10471822

Read all complaints on NHTSA →

Rear air suspension leak causing ride height drop

SUSPENSION

3 NHTSA complaints · 2015-02 → 2016-05

“REAR OF CAR DROPS TO JUST ABOVE TIRES WHEN CAR SITS FOR A FEW HOURS. AIR SUSPENSION PUMPS IT BACK UP AFTER CAR IS STARTED. AIR SUSPENSION IS LEAKING....UNSAFE TO DRIVE.CAR HAS 94000 MILES”
— Owner report, NHTSA ODI #10871447
“MY RAINER STARTED TO LOOSE AIR IN THE REAR SUSPENSION, AIR RIDE SYSTEM. AT THIS TIME THE COMPRESSOR WORKS AND DOES FILL THE AIR RIDE SUSPENSION BUT YOU CAN'T BE IN A HURRY TO GO ANYWHERE”
— Owner report, NHTSA ODI #10689744
“WHILE THE VEHICLE WAS PARKED IN OUR DRIVEWAY THE AIR SUSPENSION FAILED CAUSING THE REAR OF VEHICLE TO DROP TO AND UNSAFE LEVEL. UPON STARTING THE VEHICLE THE COMPRESSOR REFILLED THE SUSPENSION BAGS BUT WHEN PARKED AND NOT DRIVEN FOR ANY PERIOD OF TIME THE AIR BAGS LEAK DOWN”
— Owner report, NHTSA ODI #10682182

Read all complaints on NHTSA →

Electrical fire or wiring harness melting

ELECTRICAL SYSTEM, STRUCTURE, ENGINE

6 NHTSA complaints · 2012-05 → 2023-06

“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”
— Owner report, NHTSA ODI #11526598
“JUST PURCHASED CAR 3 WEEKS AGO, IT CAUGHT ON FIRE AT 3 AM AFTER BEING PARKED FOR 6 HOURS.FIRE DEPARTMENT SAYS IT STARTED AT THE DRIVER SIDE HEADLIGHT WIRING OR SWITCH AREA. COMPLETELY DESTROYED MY ENGINE BEFORE FIRE DEPARTMENT ARRIVED”
— Owner report, NHTSA ODI #10854557
“VEHICLE IDLING IN DRIVEWAY WHILE I WENT INSIDE TO RETRIEVE CELL PHONE. CAME OUT AND SMOKE IN VEHICLE AND ELECTRICAL FIRE SMELL. PULL EXTERIOR OF POWER WINDOW PANEL UP AND SAW SWITCH BURNED AND MELTED ON ONE CORNER”
— Owner report, NHTSA ODI #10458243

Read all complaints on NHTSA →

Wipers activating or running without control

VISIBILITY/WIPER

5 NHTSA complaints · 2015-05 → 2022-07

“During periods of time with ignition switch on, the wipers will loose the ability to both regulate speed and shut off. The wiper cover AC Delco/GM part number 19120931 will fail and loose control of the wipers (fail to shut off while driving)”
— Owner report, NHTSA ODI #11475864
“BUICK RAINIER 2006: WINDSHIELD WIPERS AND FLUID COME ON BY THEMSELVES. WHEN THIS OCCURS, THE ON / OFF FUNCTION DOES NOT WORK. THEY CANNOT BE SHUT OFF BY CONTROLS. THEY MERELY START AND STOP AT RANDOM”
— Owner report, NHTSA ODI #11364509
“TL* THE CONTACT OWNS A 2006 BUICK RAINIER. THE CONTACT RECEIVED A RECALL NOTIFICATION FOR NHTSA CAMPAIGN NUMBER: 14V404000 (VISIBILITY) AND STATED THAT THE PART NEEDED WAS UNAVAILABLE TO PERFORM THE RECALL REPAIR”
— Owner report, NHTSA ODI #10722216

Read all complaints on NHTSA →

Engine stalling or no-start from ignition switch

ELECTRICAL SYSTEM

5 NHTSA complaints · 2006-09 → 2014-08

“DT*: THE CONTACT STATED SINCE JULY 13, 2006, THE VEHICLE STALLED WITHOUT WARNING AT SPEEDS BELOW 20 MPH. THE VEHICLE RESTARTED EACH TIME AND WAS TAKEN TO THE DEALERSHIP”
— Owner report, NHTSA ODI #10167215
“THE ENGINE QUITS UNANNOUNCED AND THE SAFETY LOCK DASH LIGHT ILLUMINATES. THIS CAN OCCUR ANYTIME REGARDLESS OF SPEED. IF AT HIGHWAY SPEED, THE CAR WILL RESTART ON ITSELF. AT LOW SPEED, I HAVE TO PUT THE TRANNY IN NEUTRAL AND RESTART THE ENGINE”
— Owner report, NHTSA ODI #10557715
“TL* THE CONTACT OWNS A 2006 BUICK RAINIER. THE CONTACT STATED THAT UPON STARTING THE VEHICLE, THE ENGINE STALLED AND THE PASSENGER SIDE AIR BAG WARNING LIGHT ILLUMINATED INTERMITTENTLY. THE VEHICLE RESTARTED AFTER MULTIPLE ATTEMPTS”
— Owner report, NHTSA ODI #10627550

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter (Oil Life System)

Every 7,500 mi

Change when the Oil Life System calls it — typically around 7,500 miles, never beyond 12 months. dexos1 0W-20 on modern engines. Small-displacement turbos (Encore GX, Envista): don't stretch the indicator.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 7,500 mi

Rotate every 7,500 miles with the oil change — GM pairs the two in its schedule.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 7,500 mi

Inspect pads, rotors, and lines at every service. Older Centurys: check rear drum adjustment and parking-brake cables, which seize with age.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

CVT Fluid (Encore GX / Envista FWD)

Every 45,000 mi

FWD Encore GX and Envista use a CVT: GM schedules fluid replacement around 45,000 miles under severe service — which includes most city commuting. AWD Encore GX uses a 9-speed automatic instead (see transmission fluid).

Estimated cost — typical U.S. ranges

Dealer

~$360–$500

Shop

~$255–$355

DIY

~$80–$180

CVT fluid is manufacturer-specific and pricey — do NOT substitute conventional ATF.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Automatic Transmission Fluid

Every 45,000 mi

Conventional automatics (Century's 4T65-E, Regal's Aisin, AWD Encore GX's 9-speed): GM lists 45,000 miles severe / longer normal. Older Buicks respond well to a simple drain-and-fill — avoid pressure flushes on high-mile units.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 60,000 mi

Small-turbo three-cylinders (Encore GX, Envista): roughly every 60,000 miles — check the manual. Older 3.1/3.8 V6s: iridium plugs last to 100,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 45,000 mi

GM schedules replacement around 45,000 miles; inspect at every oil change in dusty regions.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Serpentine Belt

Every 60,000 mi

Inspect from 60,000 miles; replace on cracking or glazing rather than mileage alone.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Cabin Air Filter

Every 22,500 mi

Replace roughly every 22,500 miles per GM's schedule — behind the glovebox on modern Buicks.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Coolant Replacement (Dex-Cool)

Every 150,000 mi

Dex-Cool is rated 5 years / 150,000 miles. On older 3.1/3.8 V6s, intake-gasket seepage was the classic failure — check coolant level and condition at every oil change on a Century.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Battery Test & Service

Every 25,000 mi

Test annually after year 3. Stop-start-equipped Encore GX/Envista use AGM batteries — replace like-for-like, not with a cheaper flooded battery.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

21 crashes 1990–2024

How the 21 occupant deaths break down

11

driver deaths

10

passenger deaths

21

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2011 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

1

complaints mentioning a crash

5

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2006 Buick Rainier reflects Buick's published service intervals and the GM Oil Life System system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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