# Service bulletin PIT5420

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10114573
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIT5420
- Manufacturer's date: 2015\-05\-26
- NHTSA component: EQUIPMENT:MECHANICAL

## NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that may have a water rush or gurgle type noise from the center dash area. If isolated to the heater core, check the system for leaks. Repair any leaks and/ or if no leaks found, add 400 ml coolant to the surge tank. Technician should raise the front of the vehicle one foot with the surge tank cap off and run the engine for one hour.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10114573-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10114573-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories

## Vehicles listed

- 2015 CHEVROLET COLORADO
- 2015 GMC CANYON

## Other bulletins for the same vehicles and component

- [20\-NA\-132](/bulletins/10253527.md), 2024-04-23, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- [17\-NA\-052](/bulletins/10253526.md), 2024-04-23, Service bulletin: WHEELS; EQUIPMENT. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
- [20\-NA\-132](/bulletins/10252774.md), 2024-04-05, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- [PIT5401E](/bulletins/10252174.md), 2024-04-01, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Inoperative with No Communication and DTC U0184
- [PIT5358](/bulletins/10252168.md), 2024-04-01, Service bulletin: EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. Repetitive Popping Noise From All Speakers.
- [PIT5357](/bulletins/10252167.md), 2024-04-01, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. VIS / GWM / IVH May Not Match Actual Audio System of Vehicle.
- [PIT5354](/bulletins/10252164.md), 2024-04-01, Service bulletin: EQUIPMENT:ELECTRICAL. Identifying If A Vehicle Is Equipped With OnStar 4G LTE Wi\-Fi.
- [PIT5353](/bulletins/10252163.md), 2024-04-01, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. XM Audio Traffic And Travel Link Availability And Operation.
- [23\-NA\-103](/bulletins/10252126.md), 2024-03-29, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center \(TAC\).
- [11\-00\-89\-005X](/bulletins/10251889.md), 2024-03-19, Service bulletin: EQUIPMENT. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy \(U.S. Only\).

JSON: [/v1/bulletins/10114573](/v1/bulletins/10114573)

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