July 2021 – TechLink

New and Improved: The 2022 Bolt EUV and Bolt EV

The 2022 Chevrolet Bolt EUV is an all-new electric vehicle that builds on the success of the Chevrolet Bolt EV, with a 6-inch (15.2 cm) longer overall length and a […]

July 29, 2021 —

2022 Bolt EUV and Bolt EV High-Voltage Battery Assembly

The 2022 Bolt EV and 2022 Bolt EUV are powered by a 65-kWh nickel lithium-ion high-voltage battery. The battery pack will be serviceable and some of the battery pack’s accessory […]

July 29, 2021 —

Report Concerns to the 2022 Bolt EUV and Bolt EV TAC Action Center

The GM Technical Assistance Center, or TAC, (U.S.) has established an Action Center for the all-new 2022 Chevrolet Bolt EUV and 2022 Bolt EV. (Fig. 14) Fig. 14 […]

July 29, 2021 —

Electronic Transmission Range Selector Assembly Parts Return

If diagnosis for a transmission condition leads to the replacement of the Electronic Transmission Range Selector (ETRS) assembly on 2020-2022 CT4, CT5, XT4, XT5, XT6; and 2021-2022 Escalade models, keep […]

July 29, 2021 —

Wireless Phone Charging Option No Longer Available on Some 2021 Models

The Wireless Phone Charging option is no longer available on most 2021 Tahoe, Suburban and Yukon models beginning in July 2021 due to the industry-wide shortage of semiconductors. The wireless […]

July 29, 2021 —

Proper Key Fob Inspection and Battery Replacement

Any time the Remote Keyless Entry (RKE) transmitter (key fob) on 2017-2022 GM vehicles is opened, such as when inspecting the fob for proper operation or replacing the battery, the […]

July 29, 2021 —

Heater Outlet Pipe Coolant Leak

A coolant leak or coolant smell at the front passenger-side of the vehicle may be noticed on some 2019-2021 Silverado 4500HD/5500HD/6500HD models equipped with the 6.6L Duramax diesel engine (RPO […]

July 29, 2021 —

3.6L Engine Intake Camshaft Position DTCs

Some 2021 Camaro models equipped with the 3.6L V6 engine (RPO LGX) may have an illuminated Check Engine MIL and DTCs P0011 (Intake Camshaft Position System Performance Bank 1) and/or […]

July 29, 2021 —

GM Service Know-How Emerging Issues

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]

July 29, 2021 —

Know Your Shipping Guidelines When Returning Parts to the Warranty Parts Center

In order to better understand and help resolve product issues quickly, the GM Warranty Parts Center (WPC) occasionally requests the return of specific parts replaced at dealerships through the Global […]

July 16, 2021 —

Engine Misfire Detected without Drivability Concerns

An engine misfire DTC may be set on some 2020-2021 Silverado 1500 and Sierra 1500 models equipped with the 5.3L V8 engine (RPO L84). However, the misfire may not be […]

July 16, 2021 —

Photos Increase the Value of Feedback in Engineering Information Lite Bulletins

Seeing how a condition affects vehicle operation is critical to proper diagnosis. That’s why GM requests photos to be included when possible with Field Product Reports (FPR) that are part […]

July 16, 2021 —

Buckle to Drive Added to More Upcoming Models

The Buckle to Drive feature that prevents drivers from shifting out of Park until the seat belt is buckled will be included as standard equipment on more upcoming GM models, […]

July 16, 2021 —

Transfer Case Input Seal Installation

Seal installation depth is critical when replacing the transfer case input seal. On some 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks equipped with the 10L1000 10-speed automatic transmission (RPO MGM, […]

July 16, 2021 —

Freezing Turbocharger Wastegate Regulator Solenoid Valve

Some 2016-2019 Cruze models equipped with the 1.4L engine (RPO LE2) may have DTC P0234 (Engine Overboost) and P0299 (Engine Underboost) set while driving in colder weather. Due to […]

July 16, 2021 —

Wiring Harness Damage

Several Driver Information Center warning messages may display on some 2019-2021 Blazers, including service brake, service steering, reduced power and other messages. The Check Engine MIL also may be illuminated […]

July 16, 2021 —