Component

SERVICE BRAKES, HYDRAULIC:POWER ASSIST

612 NHTSA complaints about service brakes, hydraulic:power assist issues across 38 makes and 230 models.

Data updated August 2026. Counts render from the NHTSA Office of Defects Investigation standardized component field; severity flags cross-reference NHTSA ODI complaint flags for owner-reported crash, fire, and injury markers. This page is for informational purposes and does not replace NHTSA recall notices or a vehicle-specific inspection. Methodology · Corrections.

NHTSA ODI component intake brief

ODI category SERVICE BRAKES, HYDRAULIC:POWER ASSIST

612 filings · 230 models · 38 makes · vintage August 2026

  • FILINGS MODERATE 612 ODI rows
  • MODELS 230 nameplates citing this part
  • MAKES 38 manufacturers in corpus
  • CRASH 8.3% 51 crash-flagged
  • RANK #189 of 696 categories
  • SEV INJURY 2 deaths · 26 injuries
SERVICE BRAKES, HYDRAULIC:POWER ASSIST (this)SERVICE BRAKES, HYDRAULIC:PO…612STEERING:RACK AND PINION:RACK614SUSPENSION:FRONT:STABILIZER BARSUSPENSION:FRONT:STABILIZER …614SUSPENSION:FRONT:SPRINGS:TORSION BARSUSPENSION:FRONT:SPRINGS:TOR…624
ODI filing volume neighbourhood: SERVICE BRAKES, HYDRAULIC:POWER ASSIST vs nearest complaint-total peers

SERVICE BRAKES, HYDRAULIC:POWER ASSIST sits MODERATE on ODI intake volume (#189 of 696 standardized categories) with a INJURY severity stamp (2 reported fatalities across 230 models). Open Chevrolet Silverado (category leader) →

SERVICE BRAKES, HYDRAULIC:POWER ASSIST model-concentration reading

The standout signal for service brakes, hydraulic:power assist is model concentration: Chevrolet Silverado accounts for 19 filings (3.1% of this category) out of 612 total.

Moderate-volume categories still show a fingerprint in the model table below, cross-check each nameplate's recall and investigation history before inferring a defect pattern.

Next step: compare Chevrolet Silverado against STEERING:RACK AND PINION:RACK on filing totals before treating service brakes, hydraulic:power assist volume as a purchase signal.

612
Complaints
230
Models Affected
51
Crashes
6
Fires
2
Deaths

Most Affected Vehicles

# Vehicle Complaints
1 Chevrolet Silverado
19
2 Lexus Rx330
17
3 Ford Taurus
14
4 Chevrolet Suburban
14
5 Ford F-150
13
6 GMC Safari
12
7 Chevrolet Blazer
12
8 Dodge RAM 2500
10
9 Dodge RAM
10
10 Volkswagen Passat
9
11 Ford F-250
9
12 Dodge Neon
9
13 Chevrolet S10
9
14 Chevrolet Astro
9
15 GMC Sierra
8
16 Ford Windstar
8
17 Ford Escape
8
18 Lincoln Town CAR
7
19 Honda Odyssey
7
20 GMC Jimmy
7
21 Dodge Caravan
7
22 Chevrolet Silverado 2500
7
23 Audi A4
7
24 Toyota Camry
6
25 Mercury Sable
6
26 Ford Mustang
6
27 Ford F-350
6
28 Dodge Durango
6
29 Saturn SKY
5
30 KIA Sportage
5

Recent Complaints

2021 Ford E-350

The contact owns a 2021 Ford E-350. The stated while driving into the driveway, the vehicle made an abnormal popping sound. The vehicle lost power steering functionality, and the brake pedal became sp

2022 Chevrolet Silverado 1500

The contact owns a 2022 Chevrolet Silverado 1500. The contact stated while driving 20 MPH with a trailer attached, the “Trailer Brake Disabled” message was displayed. The vehicle was taken to the deal

2022 Ford E-450

The contact owns a 2022 Ford E-450. The contact stated that while driving at an undisclosed speed, the steering wheel became difficult to maneuver. The contact then stated that he had to apply pressur

2021 Ford E-450

The contact owns a 2021 Ford E-450. The contact received notification of NHTSA Campaign Number: 22V089000 (Steering, Service Brakes, Hydraulic). The contact stated that the vehicle was taken to the de

2022 Ford E-350

The contact owns a 2022 Ford E-350. The contact stated that while driving approximately 65 MPH, the steering wheel became stiff and the vehicle would pull in either direction. Additionally, there was

2021 Ford E-350

The contact owns a 2021 Ford E-350. The contact stated that the vehicle was included in NHTSA Campaign Number: 22V089000 (Steering, Service Brakes, Hydraulic) and the vehicle was inspected. During the

2021 Ford E-450

Regarding the recall #22S08 Hydroboost or Hydromax power steering pressure line. We took our Motorhome in to have the recall addressed and for service before a planned camping trip. Apparantly the rec

2018 Chevrolet Silverado 1500

The contact owns a 2018 Chevrolet Silverado 1500. The contact stated while driving 30 MPH and approaching a stop sign, the brake pedal was depressed but failed to stop the vehicle immediately. The con

2019 Tesla Model 3

The contact owns a 2019 Tesla Model 3. The contact stated that while operating the vehicle the Lane Departure, steering assist, and braking assist warning lights illuminated. During the failure the st

2015 GMC Yukon

The contact owns a 2015 GMC Yukon. The contact stated while driving 40 MPH, he had to depress the brake pedal with extra force to stop the vehicle. The contact stated that the brake assist warning lig

2012 Ford Edge

I have had to replace the brake booster in my car twice now. I have an hour commute to work and the last time, the brakes failed coming home from work. Luckily I was about 10 miles from home but I fai

2011 Ford F-150

There was a service board recall on the brake vacuum pump. It regularly gets corroded and seizes up. Ford said they’d replace it up to 150,000 miles or 10 years. They know it’s a problem and will c

2011 Lincoln MKX

LINCOLN MKX SUDDENLY HAD A HARD PEDAL AND CHECKED FOR THE POSSIBLE FLUID LEAKS AND BLEED THE SYSTEM. NO BRAKE FLUID LEAKS WERE FOUND. IT HAS BEEN INCORMED THIS COULD BE A BRAKE BOOSTER OR ABS PUMP ISS

2011 Lincoln MKX

The contact owns a 2011 Lincoln MKX. The contact stated that at start-up of the vehicle, the brake pedal would intermittently depress to the floorboard without warning. Additionally, there was an abno

2013 Honda Pilot Fire

TL* THE CONTACT OWNS A 2013 HONDA PILOT. THE CONTACT STATED THE VEHICLE BURNED A QUART OF OIL EVERY 20 MILES. THE CONTACT STATED THAT THE VEHICLE FAILS TO ACCELERATE OF 20 MPH, SMOKE WAS SEEN COMING F

2015 Chevrolet Silverado 1500

TL* THE CONTACT OWNS A 2015 CHEVROLET SILVERADO 1500. WHEN THE CONTACT ATTEMPTED TO CHANGE THE TIRES, THE PARK ASSIST BRAKES DID NOT WORK TO KEEP THE VEHICLE IN PLACE. THERE WAS NO WARNING INDICATOR I

2015 Chevrolet Cruze

POWER ASSIST FAILED, MAKING STEERING DIFFICULT, HAPPENED DURING LANE CHANGE ON FREEWAY AT 70 MPH, THIS HAPPENED IN CONJUNCTION WITH RANDOM SCREEN LOSS ON INFOTAINMENT SCREEN. ALSO RANDOM ERROR MESSAGE

2014 BMW X1 SAV Crash

2014 BMW X-1. ATTORNEY REPRESENTING CONSUMER WRITES IN REGARDS TO POWER ASSIST BRAKE FAILURE ACCIDENT. *SMD THE CONSUMER WAS STOPPED AT A RED LIGHT, WHEN THE STOP/START SYSTEM ON HER VEHICLE AUTOMA

1991 Jeep Cherokee

TL* THE CONTACT OWNS A 1991 JEEP CHEROKEE. THE CONTACT STATED THAT THE BRAKE PEDAL DID NOT PROPERLY RELEASE AND THERE WAS A LOOSE WIRE CONNECTION ASSOCIATED WITH THE BRAKING SYSTEM NEAR THE BRAKE PEDA

2004 Chrysler Crossfire

TL* THE CONTACT OWNS A 2004 CHRYSLER CROSSFIRE. THE CONTACT STATED THAT AFTER THE TERMINAL BATTERY WAS REPLACED, THE BAS AND ESP WARNING INDICATORS REMAINED ILLUMINATED. THE DEALER WAS UNABLE TO DIAGN

Verify with NHTSA · consumer-reported counts are not verified defect findings.