FILLED UP AT THE GAS STATION ONE DAY. STARTED MY RAINIER AND THE GAS GAUGE READ EMPTY AND THE LOW FUEL LIGHT WAS ON. DROVE FOR A BIT AND THE GAS GAUGE APPEARED TO START WORKING AGAIN. OVER THE NEXT COUPLE OF WEEKS THE GAUGE WOULD FLUCTUATE RANDOMLY. THEN ONE DAY, WITH MY CHILDREN IN THE CAR AND MY GAS GAUGE TELLING ME I HAD PLENTY OF FUEL, I RAN OUT OF GAS ON A VERY BUSY STREET. I WAS FORTUNA…
2006 Buick Rainier fuel system problems
moderate 31 complaints filed with NHTSA · avg repair $1,200
Complaints
31
Recalls
0
Crashes
0
Avg fix
$1,200
What owners are reporting 4 most recent
FILLED FUEL TANK AND GAS GAUGE WENT TO EMPTY, TURNING ON THE LOW FUEL LIGHT AND THE CHECK ENGINE LIGHT. THE FUEL GAUGE INDICATOR BOUNCES FROM EMPTY TO FULL. AFTER A FEW MILES THE FUEL GAUGE NEEDLE STAYS IN RANGE BUT AS I GET CLOSER TO NEEDING GAS IT DOES NOT READ ACCURATELY AND I CANNOT TELL FOR SURE IF I MIGHT RUN OUT OF GAS. MY CONCERN IS RUNNING OUT OF GAS WHEN IN HEAVY TRAFFIC, FEARING FOR …
FUEL GAUGE WORKS ERRATICALLY. WHEN THE GAS TANK IS FILLED COMPLETELY THE FUEL GAUGE READS LOW AND DINGS THE "LOW FUEL" ALARM. GAUGE THEN CLIMBS TOWARD FULL AS YOU SPEED UP AND THEN REPEATEDLY DROPS TO THE LOW FUEL ALARM. THE FAULTY FUEL LEVEL COULD LEAVE YOU STRANDED ON THE HIGHWAY WITH NO GAS IF YOU ARE NOT TRACKING YOUR FUEL LEVEL. *TT
FUEL GAUGE STOPPED WORKING. GAUGE BECAME ERRATIC REPORTING LOW/NO FUEL WHEN TANK WAS FILLED. FUEL GAUGE CONTINUOUSLY BOUNCES BETWEEN FULL AND EMPTY. BEHAVIOR CONTINUES TO EXIST. CAN'T RELY ON FUEL GAUGE TO DETERMINE WHEN A FILL UP IS REQUIRED. CURRENTLY CALCULATING MILEAGE TO NEXT FILL UP BY TRACKING MILEAGE. FLASHING LOW FUEL LIGHT IS DISTRACTING. *TR
Common questions
How serious is the fuel system problem on the 2006 Buick Rainier?
It's a documented issue but not catastrophic. 31 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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