# Service bulletin PI\-0491

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: 10039506
- Published by NHTSA: 2011\-08\-01
- Manufacturer's number: PI\-0491
- Manufacturer's date: 2011\-06\-01
- NHTSA component: WHEELS

## NHTSA's summary

GM: 2006\-2011 IMPALA. A CLUNK NOISE IS COMING FROM UNDER THE FRONT OF THE VEHICLE WHEN DRIVING AND/OR WHEN PUTTING THE TRANSMISSION IN DRIVE OR REVERSE. THIS MAY BE CAUSED BY DAMAGED MOUNTING AREAS. THE FRAME CAN SHIFT CAUSING THE CLUNKING NOISE. \*RM

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Wheels

## Vehicles listed

- 2006 to 2011 CHEVROLET IMPALA

## Other bulletins for the same vehicles and component

- [25\-NA\-156](/bulletins/11026104.md), 2025-12-04, Service bulletin: WHEELS. This service bulletin provides information on Tire Sidewall Irregularities.
- [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.
- [21\-NA\-043](/bulletins/11011709.md), 2024-12-10, Service bulletin: STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.
- [00\-03\-10\-006P](/bulletins/10253770.md), 2024-05-01, Service bulletin: WHEELS. This service bulletin provides information for dealers/technicians on Tire Radial Force Variation \(RFV\).
- [PI0655A](/bulletins/10253584.md), 2024-04-29, Service bulletin: WHEELS. Information on Removal/Cracking of Stainless Steel Wheel Nut Caps.
- [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.
- [03\-00\-91\-001I](/bulletins/10245395.md), 2023-11-22, Service bulletin: WHEELS; POWER TRAIN; STEERING; SUSPENSION; ENGINE AND ENGINE COOLING. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis\-Road testing procedure when diagnosing vibration concerns.
- [17\-NA\-170](/bulletins/10244274.md), 2023-10-25, Service bulletin: WHEELS. This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
- [12\-03\-10\-001E](/bulletins/10237340.md), 2023-06-05, Service bulletin: WHEELS. This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip \(Tire Sliding on Wheel\).
- [17\-NA\-170](/bulletins/10235799.md), 2023-05-06, Service bulletin: WHEELS. This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.

JSON: [/v1/bulletins/10039506](/v1/bulletins/10039506)

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