Buick Fuel System Problems

Fuel System issues make up roughly 4% of all Buick owner complaints. The majority of the issues have been reported by Enclave owners.

The complaint we hear about most often is fuel pump relay & fuse box melted in the 2009 Lucerne.

Common Buick Fuel System Problems

  1. Buick Over-Promised Its MPGs

    General Motors admits their estimated gas mileage for certain 2016 SUVs was a bit too optimistic. To make up for the snafu, the automaker will pay up or offer warranty extensions to 135,000 owners.

    Continue reading article "Buick Over-Promised Its MPGs" Close up of a yellow gas pump with the word 'FuelSave' on it.

  2. Inaccurate Gas Gauge

    GM vehicles have a problem with defective gas gauges that leave owners wondering just how much fuel is left in their tank. The gauge goes a little whacko once the tank is less than half full, with owners saying it sticks in place or bounces…

    Continue reading article "Inaccurate Gas Gauge" Cluster on instruments in a Buick, including a gas gauge that shows the tank is empty.

Where Fuel System Complaints Happen

Sometimes it helps just to tally up the complaints and see where the biggest stacks are. Use this information to learn about troublespots or to run for the hills.

Worst Issues

Worst Models

Recent Fuel System News

There's a lot of news out there, but not all of it matters. We try to boil down it to the most important bits about things that actually help you with your car problem. Interested in getting these stories in an email? Signup for free email alerts over at CarComplaints.com.

  1. Back in May, GM admitted that they overstated the fuel economy on some 2016 SUVs and offered a compensation program as a sorry 'bout that.

    Owners received somewhere between $450 to $1500, based on a few factors, for their troubles. But that wasn't enough for some.

    A new lawsuit wants GM to pony up more cash for the decreased resale value of the 2016 Chevy Traverse, Buick Enclave, and GMC Acadia.…

    keep reading article "Has Enclave Lost Value Because of MPG?"

  2. The 2016 Buick Verano is a hot mess. Or at least, it will be once it catches on fire from fuel line leaks.

    General Motors found fuel lines that were not shaped correctly, causing the lines to touch the engines once installed in the vehicles. The supplier investigated and determined the machine operator responsible for the lines apparently wasn't trained well enough.…

    keep reading article "2016 Verano Recalled Because They Keep Catching on Fire"

  5. Ahh, the gas gauge -- dependable travel companion and broadcaster of low fuel warnings. A device so simple that not even General Motors could mess it up ... or so we thought.

    GM is recalling over 50,000 SUVs because the gas gauge could provide little to no warning that the vehicle is about to run out of gas.

    How bad is it? In a letter to the National Highway Traffic Safety Administration (NHTSA), GM said a defective engine control module (ECM) "may result in inaccurate fuel gauge readings at both the high and low end of the fuel range by as much as one quarter of a tank."

    Do I smell a new marketing slogan opportunity? GM: our gas gauges are only off by 25%!…

    keep reading article "Software Update Aims to Fix GM's Inaccurate Fuel Gauges"