The Volt was rolled out with great fanfare in late 2010 but has since hit bumps in the road. Sales have fallen short of expectations, and its reputation was bruised by an investigation into a possible fire risk.

DALLAS — General Motors is suspending production of its Chevrolet Volt electric car for five weeks amid disappointing sales.

A GM spokesman said Friday that the company will shut down production of the Volt from March 19 until April 23, idling 1,300 workers at the Detroit-Hamtramck assembly plant.

The Volt was rolled out with great fanfare in late 2010 but has since hit bumps in the road. Sales have fallen short of expectations, and its reputation was bruised by an investigation into a possible fire risk.

It carries a high price tag — around $41,000 before a U.S. tax credit of up to $7,500. Rising gasoline prices should boost the Volt’s appeal, but there are plenty of other less-expensive cars that also get good mileage.

GM sold 7,671 Volts last year, below its original goal of 10,000 cars. The company stopped publicly announcing sales targets last year. It sold 1,023 Volts in February and 603 in January.

“The fact that GM is now facing an oversupply of Volts suggests that consumer demand is just not that strong for these vehicles,” said Lacey Plache, chief economist for auto information site Edmunds.com.

GM spokesman Chris Lee said the company was “taking a temporary shutdown” of the assembly line.

“We’re doing it to maintain our proper inventory levels as we align production with demand,” he said.

Lee said a decision to allow Volt drivers to use carpool lanes in California should help demand. “We’re just looking to increase sales, and we see a positive trend going forward,” he said.

Although the Volt has not been a big seller, the low-emission vehicle has improved GM’s reputation for innovation. Like its closest competitor, the Nissan Leaf, the Volt is rated at more than 90 miles per gallon by the EPA. The Volt is powered by a 400-pound battery pack on which the car can travel about 35 miles before it needs recharging. After that, a gasoline-powered generator drives the electric motor.