Loading...

NHTSA ID Number: 10137398

Manufacturer Communication Number: PIE0458

TSB/Document Date: 2018-05-21


Summary

This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Brake Pedal Low or Goes to Floor with No External Signs of a Leak.


If the PDF is very large, it may not load in the preview below.

Download PDF [49.74 KB]


Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.

If the TSB PDF does not show, download or view it on the NHTSA Website.

Click on the (+) Plus Sign

Then Click on Associated Document(s)


SaleBestseller No. 1
Valvoline DOT 3 & 4 Synthetic Brake Fluid with High Boiling Point, Corrosion Protection, Vapor Lock Resistance, Compatible with ABS, Disc and Drum Brake Systems, 32oz
  • Mixes well with conventional fluids
  • Low-moisture formula provides excellent vapor lock...
  • Ideal for hydraulic and disc brakes
Bestseller No. 2
Prestone AS401 DOT 3 Synthetic Brake Fluid - 32 oz.
  • Provides an extra margin of safety in extreme braking...
  • Mix of polyglycol ethers ensures hot brake-system operation...
  • Excellent for ABS, disc and drum brake systems
  • Delivers braking power when needed by avoiding a spongy...
  • Both wet and dry boiling points exceed the minimum...

This product presentation was made with AAWP plugin.


Search NHTSA Database for Recalls

View Latest Recalls


Search NHTSA Database for Vehicle Investigations

View Latest Vehicle Investigations


Search NHTSA Database for Vehicle Complaints

View Latest Vehicle Complaints


TSB/Document ID: PIE0458

Replacement Service Bulletin Number:

MFR Communication Date: 2018-03-22

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

MFR Component System:

MFR Component Subsystem:


Previous TSB

Next TSB



Subject:

Engineering Information — Brake Pedal Low or Goes to Floor with No External Signs of a Leak

Attention:

Proceed with this EI ONLY if the customer has commented about this concern AND the PIE
number is listed in the Global Warranty Management / Investigate History link (GWM/IVH). If the
customer has not commented about this condition or the EI does not show in GWM/IVH,
disregard the PI and proceed with diagnostics found in published service information. THIS IS
NOT A RECALL — refer to Service Bulletin 04-00-89-053E for more details on the use of
Engineering Information bulletins.

Brand:

Model:

Model Year:

VIN:

from

to

CadillaceBay logo

XT5

2017

2017

GMCeBay logo

Acadia (VIN
N)

2017

2017

from

Engine:

Transmission:

All

All

to

Involved Region or Country

North America

Condition

Important: If the customer did not bring their vehicle in for this concern, DO NOT proceed with this
EI.
Some customers may comment on a low brake pedal or that the pedal goes to the floor.
GM Engineering is attempting to determine the root cause of the above condition. Engineering has a
need to gather information on vehicles PRIOR to repair that may exhibit this condition. As a result,
this information will be used to "root cause" the customer's concern and develop/validate a field fix.

Cause

Correction
If you encounter a vehicle with the above concern, and there is no external signs of a leak, contact the engineer listed below prior to completing any
repairs.

Contact Information
Engineer Name

Phone Number

David Skoog

(586) 907-3667

Please include the following information if leaving a message:

Technician name

Dealer name and phone number

Complete VIN and repair order (R.O) number

On the repair order, document the date and time the call was placed (even if the engineer was not reached).
If engineering is unable to return the call within one hour, proceed with diagnosis and repair based on information found in SI.

Warranty Information
If engineer was contacted or required information was provided, use:

1

Labor Operation

Description

Labor Time

2480378*

Engineering Information — Brake Pedal Low or Goes to Floor with No
External Signs of a Leak

0.3 hr

* This is a unique labor operation for bulletin use only.

Version

1

Modified

Released March 22, 2018

2

1


SaleBestseller No. 1
Launch OBD2 Scanner CRP123X V3.0 Elite, 2026 Lifetime Free WiFi Update Scan Tool, FCA SGW, CANFD&DoIP, SAS/Throttle/Brake/BMS/D-P-F/Oil/ABS Service Multi Systems Car Scanner, Battery Test, Auto VIN
  • [Newly Added in 2026: 7 Reset Functions] The 2026 new version of the OBD2 scanner diagnostic tool CRP123X V3.0 Elite has new special functions for F.REE: Throttle Ad.aptation, Oil/SAS/BMS/Brake Reset, D-P.F Re.generation and ABS Service. Before you visit a mechanic, launch obd2 Scanner CRP123X Elite can perform a more in-depth diagnosis of the car system and provide accurate data within minutes. What's more, the list of compatible models has been expanded. Upgrading frequency is regular, occurring monthly even weekly.
  • 🔥[FCA AutoAuth + CAN FD & DoIP] As an upgraded version of the LAUNCH CRP123X/CRP129X, FOXWELL NT614, and ANCEL FX2000, The Newest LAUNCH CRP123X V3.0 auto diagnostic scanner supports the following new protocols: CAN-FD for 2020 and newer G.M and ChryslereBay logo models, as well as DoIP for V.olvo, Land RovereBay logo/JaguareBay logo, and B.MW F/G chassis. With integrated AutoAuth, you can diagnose 2018 and newer FCAeBay logo cars equipped with S.GW. Note: CAN-FD and DoIP protocols require an additional obd2 cable. *Menus vary by make, model, and year of gasoline or diesel engine vehicle. Email us your VIN data.
  • 🔥[No extra software fee. Works on 90 vehicle brands.] Most OBD2 scanners work with vehicles manufactured after 2001. However, the LUNCH OBD2 scanner is compatible with OBDII-equipped vehicles built after 1996 and works with more than 90 vehicle brands. One-click lifetime updates over WIFI 2.4&5.0Ghz keep the car software current and ensure constant coverage additions, diagnose vehicles from 1996 to 2026 with a massive global database. Android 8.1 ensures lightning-fast boot-up and processing.
  • [Accurate & Intuitive Multi System Diagnosis] Will you be confused about what happens when the warning light of transmission, ABS, and SRS Airbag check engine flashes? Launch obd2 scanner diagnostic tool CRP123X V3.0 to pinpoint the problem components for a faster diagnosis for your car instead of taking your car to the dealership. Generate vehicle health reports with one click and share them via email over Wi-Fi to help avoid blind maintenance. And will turn off the warning light for you after fixing the problem, make to know more about your cars and do your own repair.
  • [Multiple Display of Live Data + DTC Code Definition Explanation] Launch car tools show real-time data of oil temp, pressure, transmission temp, engine speed, coolant temperature, you will know which car part is abnormal. Data can be shown in a single, multi- graph, and merge two graphs for analysis(or 4-in-1 merged waveform graph),you can save, share, print, or email the overall inspection report for easier analysis.🔥Code Search,DTC Library provide massive information. Inbuilt “Feedback” module provides customized repair suggestions from our certified professionals.
SaleBestseller No. 2
LAUNCH X431 CRP919XBT OBD2 Scanner, 2026 Wireless Bidirectional Scan Tool with ECU Coding, 35+ Services, All Systems Diagnostic, FCA AutoAuth, 2Yrs Free Update, V.A.G Guide, CANFD, Upgraded of CRP919X
  • 【2026 Most-cost-effective LAUNCH Scanner】 LAUNCH X431 CRP919XBT, upgraded from CRP919X, includes a VCI for wireless data transmission (3Mbps max). ✅HARDWARE: MTK's chip + doubled memory & battery capacity ensure 5X faster & smoother navigation than OBD2 scanner diagnostic tools in the same category. ✅SOFTWARE: Its productive features (same as LAUNCH X431 scanners), 99% car coverage, more-frequent software renewals, field-tested accurate database, are superior to most competitors on market.
  • FCAeBay logo AutoAuth + CANFD&DOIP】 LAUNCH X431 CRP919XBT uses a newly-developed wireless connector “DBSCar VII VCI” instead of a connection cable. You can be at workbench or any location around vehicle while running diagnostics. ✅With this VCI, this OBD2 scanner supports new protocols of tomorrow: CANFD for 2020-now GM&ChryslereBay logo Models; DoIP for VolvoeBay logo, Land RovereBay logo/JaguareBay logo, BMWeBay logo F/G Chassis. ✅And with integrated AutoAuth, you can diagnose 2018+ FCAeBay logo SGW-equipped cars without separate adapters.
  • 【ECU Coding & 35+ Reset Services】 For just 500 bucks you’ll get fully-featured ECU coding & resets/relearns from LAUNCH X431 CRP919XBT. 👍Online Code for VWeBay logo/AudieBay logo/Skoda/FordeBay logo/LincolneBay logo/MazdaeBay logo; 👍Open/close hidden functions; 👍Personalized modifications/changeover; 👍Shortcut to 35+ special functions like “Oil Reset/Brake Reset/Throttle Adaptation” etc., to quickly meet your daily repair needs. 🚩100+ more resets/relearns are under “car brand – system” waiting to explore.
  • 【All Brands All System Scan】 With a market focus, LAUNCH X431 CRP919XBT boasts a complete filed-tested database for your deeper dive into car's health to handle more complex repairs. Back up by leading LAUNCH technology, you can do all system coding/scans/read&clear codes/bidirectional control/resets covering 99% cars, unlike many scanners for cars on market (x-tool) with fake advertisement claiming to “do it all” but in reality, they ONLY work for certain cars with limited services.
  • 【Bi-directional Control】This LAUNCH bidirectional scan tool CRP919XBT allows technicians to command specific vehicle components (like solenoids, relays) to monitor real-time working status, without using the vehicle controls. Achieve fast, accurate diagnostics and take control like never before. Turn on the radiator fan, modulate the throttle, open or close windows, operate mirrors, Injector Buz Test, turn on interior and exterior lights, sound horn, etc.
SaleBestseller No. 3
LAUNCH CRP123 V2.0 OBD2 Scanner-2026 New Model Engine/ABS/SRS/Transmission Diagnostic Scan Tool SRS Airbag Code Reader,3 Reset Oil Service/Throttle Relearn/SAS Reset,Lifetime Free Update
  • 【Great Ideal For Every Car Owner】Prefect choice for your father, husband, brother or boyfriend. EVERY CAR OWNER WILL NEED IT! Also, the lifetime update is provided for more vehicle coverage, bug fixes. SAVE AT LEAST $1000+ PER YEAR!Get LAUNCH CRP123 V2.0 car diagnostic scanner and give your lover a surprise!*R each us to Get the Extra Gifts :Protective Case Storage Bag.
  • 【Newly Added 3 Reset Functions】CRP123 V2.0 obd2 scanner with upgrades it offers Throttle Adaptation,Oil Reset and SAS Reset functions for FREE now!! Optimize your engine performance with Throttle Adaptation, reset your oil life system with ease to save time and money on maintenance, and enhance your vehicle's handling and safety with SAS Reset.Covering more daily repairs,become the most cost-effective product in its price range,save your time and money!
  • 【 Read & Clear/Reset Engine/ABS/SRS/Transmission Diagnostic Scan Tool 】LAUNCH CRP123 V2.0 OBD2 Scanner can test Engine, Transmission, ABS and Airbag four systems, also reads and resets code, displays data stream graphic, stores and playbacks dynamic data stream,helps to quick analysis and diagnosis.
  • 【 Error Fault Code Reader】Except the full 10 modes OBD2 diagnostic functions like, retrieving I/M readiness, Freeze Frame Data, Read Dynamic Data stream and Vehicle Information, O2 Sensor Test, EVAP Test of Fuel Tank System (Mode 8) and Advanced On-board Monitoring (Mode 6), launch crp123 v2.0 obd2 scanner can not only reveal what error codes your car is producing, but also erase your vehicle’s check engine light after problem fixed, the DTC help and explanation also tell you the exact problem.
  • 【 Live Data Graphing + Read/Record/Playback Data stream + Print diagnostic data 】Live Data Graphing,more intuitive to know your vehicle’s problem.4 inches Screen Screen ;Print Function:Print the diagnose result easily; with user manual and register & update tutorial video uploaded in the link by us,you can Look up it anytime by ONE-CLICK.

This product presentation was made with AAWP plugin.


Last update on 2026-05-31 / Affiliate links / Images from Amazon Product Advertising API


 
Share to...