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NHTSA ID Number: 10185732
Manufacturer Communication Number: PIT5386F
Summary
This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.
30 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | SILVERADO 1500 | 2014-2021 |
| CHEVROLET | SILVERADO 2500 | 2015-2021 |
| GMC | SIERRA 1500 | 2014-2021 |
| GMC | SIERRA 2500 | 2015-2021 |
Condition / Concern
Backup alarm is inoperative. Trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5386F
Published date: 12/14/2020
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NHTSA ID Number: 10144462
Manufacturer Communication Number: PIT5386D
Summary
This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5386D
Published date: 08/20/2018
MC-10144462-9999.pdf 476.774KB
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1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5386A
Published date:
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- HIGH SOUND LEVEL: MIRKOO backup alarm can make a powerful beeping sound that is 110dB(±3dB). Nobody will ignore this beeping sound when you are reversing vehicle.
- PREMIUM QUALITY: MIRKOO backup alarm is made from premium quality materials to ensure durability and longevity. High decibel, good sound quality, low current, and long lifespan. It can work in a variety of temperature environments, no matter you are in Florida or Alaska.
- EASY TO INSTALL: Our backup alarm is very easy to install, you just need to splice a wire from the positive screw terminal to the power wires of the reverse light or a reverse switch installed on the dashboard, then splice a wire to the ground(Negative wire).
- UNIVERSAL FIT: MIRKOO backup alarm is designed to work on 12-80 Volt DC vehicles. It will automatically adjust to a voltage range of 12-80 volt vehicles. Including Trucks Vans Freight Vehicles Cars Lorries SUV.
- Manufacturer sales
- Alarm: Back-Up 102Db 12-24VDC
- Made in China
- Package Dimensions : 4.06 L x 1.88 H x 2.88 W (inches)
- Package Weight : 0.75 pounds
- HIGH SOUND LEVEL: MIRKOO backup alarm can make a powerful beeping sound that is 110dB(±3dB). Nobody will ignore this beeping sound when you are reversing vehicle.
- PREMIUM QUALITY: MIRKOO backup alarm is made from premium quality materials to ensure durability and longevity. High decibel, good sound quality, low current, and long lifespan. It can work in a variety of temperature environments, no matter you are in Florida or Alaska.
- EASY TO INSTALL: Our backup alarm is very easy to install, you just need to splice the positive wire (red wire) to the power wires of the reverse light or a reverse switch installed on the dashboard, then splice another wire(black) to the ground (Negative wire).
- UNIVERSAL FIT: MIRKOO backup alarm is designed to work on 12-80 Volt DC vehicles. It will automatically adjust to a voltage range of 12-80 volt vehicles. Including Trucks Vans Freight Vehicles Cars Lorries SUV.
- Manufacturer sales
- HIGH SOUND LEVEL: MIRKOO backup alarm can make a powerful beeping sound that is 110dB(±3dB). Nobody will ignore this beeping sound when you are reversing vehicle.
- PREMIUM QUALITY: MIRKOO backup alarm is made from premium quality materials to ensure durability and longevity. High decibel, good sound quality, low current, and long lifespan. It can work in a variety of temperature environments, no matter you are in Florida or Alaska.
- EASY TO INSTALL: Our backup alarm is very easy to install, you just need to splice the positive wire (red wire) to the power wires of the reverse light or a reverse switch installed on the dashboard, then splice another wire(black) to the ground (Negative wire).
- UNIVERSAL FIT: MIRKOO backup alarm is designed to work on 12-80 Volt DC vehicles. It will automatically adjust to a voltage range of 12-80 volt vehicles. Including Trucks Vans Freight Vehicles Cars Lorries SUV.
- Manufacturer sales
- BACKUP ALARM. This trailer wiring harness extension features an integrated back up alarm that sounds at 97 decibels when your vehicle is in reverse. This promotes safety for your family, friends and others in the immediate vicinity
- WEATHER-RESISTANT. This truck backup alarm comes with a spring-loaded dust cover for the 7-pin wiring socket to protect the terminals from water, dirt and corrosion
- EXTENDER. This trailer wiring back up beeper plugs into your vehicle-side 7-way RV blade socket and extends it out for added clearance from the bumper or trailer hitch
- STANDARD CONNECTION. This back up beeper for trucks plugs into any standard 7-way RV blade and can be used to connect the taillights, brake lights, turn signals, trailer brakes and auxiliary power
- DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this truck back up alarm is made from durable black plastic that will never rust or corrode
- HIGH SOUND LEVEL: MIRKOO backup alarm can make a powerful beeping sound that is 110dB(±3dB). Nobody will ignore this beeping sound when you are reversing vehicle.
- PREMIUM QUALITY: MIRKOO backup alarm is made from premium quality materials to ensure durability and longevity. High decibel, good sound quality, low current, and long lifespan. It can work in a variety of temperature environments, no matter you are in Florida or Alaska.
- EASY TO INSTALL: Our backup alarm is very easy to install, you just need to splice the positive wire (red wire) to the power wires of the reverse light or a reverse switch installed on the dashboard, then splice another wire(black) to the ground (Negative wire).
- UNIVERSAL FIT: MIRKOO backup alarm is designed to work on 12-80 Volt DC vehicles. It will automatically adjust to a voltage range of 12-80 volt vehicles. Including Trucks Vans Freight Vehicles Cars Lorries SUV.
- Manufacturer sales
- ENHANCE SAFETY with the PORSCHE BACKUP ALARM, designed for TRUCKS, VANS, and COMMERCIAL VEHICLES, ensuring a secure reverse operation in AUTO and CON settings.
- WATERPROOF & DURABLE construction makes this BACK UP ALARM ideal for all weather conditions, ensuring reliable performance for CARS, GOLF CARTS, and FORKLIFTS.
- LOUD & CLEAR sound output from the built-in SPEAKER and HORN ensures your BACKUP BEEPER is heard, enhancing SAFETY in busy environments like CONSTRUCTION SITES and WAREHOUSES.
- EASY INSTALLATION with WIRE and REMOTE CONTROL features, this BACKUP ALARM FOR TRUCKS offers convenience and flexibility, compatible with DC power and BATTERY-operated vehicles.
- VERSATILE USE across various vehicles including POLICE CARS, FIRE TRUCKS, and TRACTORS, the REVERSE BEEPER is a must-have for AUTOMOTIVE SAFETY, ensuring GROUNDING and CONTROL.
- Alarm Back-Up 97 DB, 12 VDC
- Package Dimensions: 8.128 L x 4.826 H x 13.97 W (centimeters)
- Made in China
- Package Weight : 4.89 pounds
- HELLA back up alarms guarantee best functionality, optimum fit and long lasting customer satisfaction.
- Original equipment quality back up alarms you can trust from a global leader in automotive technologies for more than 100 years
- Back up alarm comes with an integrated bracket for universal mounting. Protection class: IP6K7 (Resistant to water immersions).
- Sound level: 110 dB(A); Voltage: Multivoltage (9 V - 48V). Dimensions: 2.5" height x 3.9" width.
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
SEOCONTENT-START
Bulletin No.: PIT5386F
Published date: 12/14/2020
Preliminary Information
PIT5386F Back Up Alarm Inoperative and needs to be Connected During PDI
Product Investigation Review Required
Models
| Brand: | Model: | Model Years: | VIN: | Engine: | Transmissions: | |
| from | to | |||||
| Chevrolet | Silverado 1500 | 2014 – 2021 | All All All | All | ||
| Chevrolet | Silverado 2500/3500 | 2015 – 2021 | All | All | All | All |
| GMC | Sierra 1500 | 2014 – 2021 | All All All | All | ||
| GMC | Sierra 2500/3500 | 2015 – 2021 | All | All | All | All |
Supersession Statement
This PI was superseded to update the model years and Correction. Please discard PIT5386E.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
During the PDI it may be noticed that the backup alarm is inoperative. Trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant.
Recommendations / Instructions
- For 2020/2021 3500 Chassis Cab models (31003, 31043, and 31403) the back up alarm is not installed on the truck’s frame and it has been left loose inside the cab from the assembly plant. It is the up tters responsibility to mount the back up alarm and splice into the reverse circuit. The labor op listed below does not apply to these vehicles because no additional work is needed during PDI.
- For All Other Trucks, the alarm is located on the right rear of the frame, and the chassis harness alarm connector is located on the left rear of the frame. Route the harness up and over the spare tire hoist tube and connect to the backup alarm.
- Back Up Alarm/Connector
- Chassis Harness Alarm Connector
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
| Labor Operation | Description | Labor Time |
| 0590032 | PDI – Dealer Installed – Factory Invoiced Options | Use Published Labor Operation Time |
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
Additional SI Keywords
backup reverse shift
SEOCONTENT-END
