Problems · by component
2016 Chevrolet Impala service brakes problems
84 owner complaints to NHTSA about the 2016 Chevrolet Impala cite service brakes, 9% of all 890 complaints for this model year.
Complaints
84
9% of all complaints
Crashes
12
Reported by owners
Fires
0
Reported by owners
Injuries
6
Reported by owners
What owners say about the service brakes
Verbatim from NHTSA complaints, newest first
“When I was driving my car with my child in it my break tightened up and I couldn’t apply them to stop I had to let my foot off the gas and let my car slow its self down safely. When I got my car home my husband looked at it and found out that my vaccum pump had went out and part of it broke off in the engine. This is very unsafe and this needs to be investigated because people can’t know when the vacuum pump is going to go bad this issue lays on gm and Chevy to make sure the parts they are using will hold up and be safe”
“Brake booster pump failed ( gm part # 12704586 ) Causing limited braking and severe damage to internal engine components, camshafts ,timing chain have been damaged This is a ongoing problem in which i have had this pump replaced at my expense several times. The problem stems brake booster pump is lubricated using the engine's oil . Booster pump has a small screen to filter oil, this filter can easily become clogged resulting in booster to run dry and grenade into top of engine. These pieces then interfer with camshafts and timing gears other components”
“The car has a seat belt electrical problem it makes sound once in a while indicating for the driver to put their seat belt on. Also there is issues with the brake sensor. The #1 issue is the Transmission Accumulator Pressure Pipe, when it breaks all your transmission oil pours out from the bottom of the vehicle. The part is about $20 but if not installed right you will think that your transmission is dead but it's not.”
“Update to claim #11614644. Car was inspected by Auto Lenders in Lakewood, NJ. Vacuum pump failed and cam shaft has to be replaced, was told the engine **SHOULD* be salvageable. They won't know until they start taking it apart. Was told it will take 12 hrs for each part at $180 an hr. Damage is estimated at $4500. Car is currently under an extended warranty, we are waiting to hear if the warranty will cover the damage. My son still owes $9000 on the car, we bought it 2 yrs ago. Beyond angry that Chevy/GM has not recalled this car!!!”
“I am having to replace the VACUUM PUMP for the second time. Each time the pump breaks it spreads contaminants inside the camshaft compartment causing further issues. This is a common problem according to the many complaints I've seen on auto sites. This should be a recall.”
“Vacuum pump failure. Brakes failed while driving the car, brakes became manual power but was able to pull over safely. There was no previous warning or error codes. Car is currently at a Mr. Tire facility. The manager ran diagnostic code - "reduce engine power" error and found the cause as the vacuum pump. Due to the time of the failure, late Saturday 9/14/24, the part cannot be ordered until Monday from the local Chevy dealership. The facility will not know if there is additional engine damage until the part is remove and inspected. There is known issues with vacuum pumps failing and a class action lawsuit currently in ligation.”
Showing 6 of 84 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.