NHTSA ID Number: 10205054
Manufacturer Communication Number: 20NA028
Summary
This service bulletin is to inform dealers that in extreme cold weather, a grille winter cover needs be added during PDI to avoid the customer returning with concerns related to charge air cooler icing.
5 Affected Products
Vehicles
The purpose of this bulletin is to:
- Make sure that in extreme cold weather (-18°C or less / 0°F or less), a grille winter cover needs be added to avoid the customer returning with concerns related to charge air cooler icing.
- You must educate the customer by explaining the usage instructions from the owner manual. Print and review the owner manual usage with the customer. Review the installation procedure with the customer.
Important: A winter grille cover should be installed in the extreme cold weather and removed when the winter season changes. For Canadian vehicles:
1. The winter grille cover should be included with the vehicle. If the winter grille cover is missing at PDI, order the winter grille cover using the unique labor code provided in this bulletin.
2. One time install of the winter grille cover is covered under warranty. This can be installed and charged to the unique labour op code provided in this bulletin up to 12 months after delivery.
3. Additional covers and repeat installation are customer pay.
Additional covers and repeat installation are customer pay.
Encore GX
Refer to the service video shown above for installing the Winter Grille Cover.
Note: Clean the surface before installing the Winter Grille Cover.
SEOCONTENT-START
Service Bulletin Bulletin No.: 20-NA-028
Date: September, 2021
INFORMATION
Subject: Charge Air Cooler Icing During Extreme Cold Weather Conditions PDI – Canada
Attention: This bulletin applies to Canadian vehicles only.
Brand: Model:
Model Year: VIN:
Engine: Transmission:
from to from to
Buick
Encore GX (VIN M) 2020 2022
— —
1.2L, 1.3L
(RPOs
LIH, L3T)
—
Chevrolet Trailblazer (VIN M) 2021 2022
1.2L, 1.3L
(RPOs
LIH, L3T)
Involved Region or Country Canada Only
The purpose of this bulletin is to:
• Make sure that in extreme cold weather (-18°C or
less / 0°F or less), a grille winter cover needs be
added to avoid the customer returning with
concerns related to charge air cooler icing.
• You must educate the customer by explaining the
usage instructions from the owner manual. Print
and review the owner manual usage with the
customer. Review the installation procedure with
the customer.
Important: A winter grille cover should be installed in
the extreme cold weather and removed when the winter
season changes. For Canadian vehicles:
1. The winter grille cover should be included with the
vehicle. If the winter grille cover is missing at PDI,
order the winter grille cover using the unique labor
code provided in this bulletin.
2. One time install of the winter grille cover is covered
under warranty. This can be installed and charged
to the unique labour op code provided in this
bulletin up to 12 months after delivery.
3. Additional covers and repeat installation are
customer pay.
Additional covers and repeat installation are
customer pay.
Encore GX
Refer to the service video shown above for installing
the Winter Grille Cover.
Note: Clean the surface before installing the Winter
Grille Cover.
Parts Information
Causal
Part
Description Part
Number
Qty
N/A COVER, WINTER
GRILLE
Refer
to EPC
1
Page 2 September, 2021 Bulletin No.: 20-NA-028
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 Comments
Note: If the
vehicle
came with
the grille
cover, use
this labor
operation
number.
1086278*
Winter Grille
Cover
Installation**
Should be ZPDI only
Labor time of 0.2 hrs
Can be charged up to 12
months after sale.
1 use only of this LC.
*This is a unique Labor Operation for bulletin use only.
**Include ZPDI labor code with following restrictions ; onetime
installation only, up to 12 months after sale, part
ceiling zero
Note: If the
vehicle Did
Not come
with the
grille cover.
use this
labor
operation
number.
1086338*
Missing
Winter Grille
Cover***
Should be ZREG
Labor Time 0 hrs
1 use only of this LC.
*This is a unique Labor Operation for bulletin use only.
***Use ZREG labor code- Missing Cover at PDI only
Version 7
Modified
Released February 7, 2020
July 9, 2020 – Added the 2021 Trailblazer, included an Encore GX video and added
information for Canada.
September 29, 2020 – Added a Warranty Information section.
December 1, 2020 – Added the 2021 Model Year to Encore GX.
March 11, 2021 – Added new Labor Operation Number for Missing Cover at PDI.
June 03, 2021 – Updated the Important statement.
August 27, 2021 – Added the 2022 Model Year.
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 20-NA-028
Date: September, 2021
MC-10205054-9999.pdf 504.496KB
NHTSA ID Number: 10191200
Manufacturer Communication Number: 20NA028
Summary
This bulletin is to inform dealers that in extreme cold weather, a grille winter cover needs be added during PDI to avoid the customer returning with concerns related to charge air cooler icing.
1 Associated Document
Manufacturer Communications
Bulletin No.: 20-NA-028
Date: March, 2021
MC-10191200-9999.pdf 503.807KB
NHTSA ID Number: 10187390
Manufacturer Communication Number: 20NA028
Summary
This bulletin is to inform dealers that in extreme cold weather, a grille winter cover needs be added during PDI to avoid the customer returning with concerns related to charge air cooler icing.
1 Associated Document
Manufacturer Communications
Bulletin No.: 20-NA-028
Date: December, 2020
MC-10187390-9999.pdf 495.402KB
NHTSA ID Number: 10186076
Manufacturer Communication Number: 20NA028
Summary
This bulletin is to inform dealers that in extreme cold weather, a grille winter cover needs be added during PDI to avoid the customer returning with concerns related to charge air cooler icing.
1 Associated Document
Manufacturer Communications
Bulletin No.: 20-NA-028
Date: December, 2020
MC-10186076-9999.pdf 495.402KB
NHTSA ID Number: 10181686
Manufacturer Communication Number: 20NA028
Summary
This bulletin is to inform dealers that in extreme cold weather, a grille winter cover needs be added during PDI to avoid the customer returning with concerns related to charge air cooler icing.
1 Associated Document
Manufacturer Communications
Bulletin No.: 20-NA-028
Date: October, 2020
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