GM recalls nearly 3.5 million trucks & SUVs over issues with braking systems

Galtero Lara
Setiembre 13, 2019

General Motors has issued a recall of 3.4 million pickup trucks and SUVs in the USA in order to fix a problem with brakes in the vehicles. GM did not immediately explain why the Canadian recall occurred more than two months before it called back the vehicles in the United States.

Chevrolet Tahoe - This recall also includes a total of 356,043 Chevrolet Tahoe vehicles with model years ranging from 2015 to 2018.

GM says about 310-thousand of the affected vehicles are in Canada. GM said global numbers for the recall weren't available.

Owners began receiving notifications of the recall on September 6.

The recall comes following a lengthy investigation by the National Highway Traffic Safety Administration, which began past year in November.

The American government had been pressing the company for a recall after more than 100 crashes and several injuries related to the issue.

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The problem is with the vacuum pump, according to GM. Oil flows into the pump through a filter screen, but excess oil sludge and other debris could accumulate on the filter screen, reducing the screen's effectiveness over time while also, possibly, increasing braking effort and braking distance. Instead, the automaker said in a statement that the vacuum pump receives oil lubrication, and in the affected vehicles, a screen can become clogged and cause a reduction in vacuum power. Thus, the remedy will involve a tweak to the secondary power brake assist system with a reprogramming, which kicks in if the vehicle detects a problem with the main system. The reprogramming will activate the secondary system faster.

GM will not replace the pumps in the vehicles, however.

When the vacuum level drops, the brake assist will decrease. He said GM would have done the recall even without the NHTSA investigation. He said he didn't know the cost.

The recall covers the Chevrolet Silverado and GMC Sierra models from 2014 to 2018.

GM began investigating past year after getting higher than normal warranty claims for engine control computer replacements. Engines may not start, or in rare cases, could stall without warning. Dealers will reprogram the engine control computer to correct the problem.

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