The 2021 Chevrolet Suburban and Tahoe, in addition to the GMC Yukon and Yukon XL, are getting a giant software program replace to repair an extended record of potential points.

Technical Service Bulletin: # 21-NA-044
Printed: 03/09/2021

TSB # 21-NA-044 applies to:

• Chevrolet Suburban / Tahoe 2021
• 2021 GMC Yukon / Yukon XL

Reported situations

Some house owners of 2021 Chevrolet and GMC full-size SUVs (FSSUV) could have skilled software program bugs that have an effect on the automobile and its efficiency or operation.

A number of the messages that house owners could discover or hassle codes that technicians could discover are as follows, however aren’t restricted to those examples:

• U0132 Service Improve or Service Headlamp
• CPI – Intermittent virgin CPI
• P2B87 AUX water pump
• U0230 Electrical tailgate inoperative
• U3006 and U3007 low voltage
• Rear seat infotainment – Contact inoperative
• U3000.49 Service Driving Help – LRR
• U3000.71, .72, .96 ESCL service steering column lock
• EBCM C0024 Antilock Braking System
• P12A6 No begin – ECM
• No begin / DIC / MIL – Battery voltage low
• No backup or 360 cameras – VPM offline
• Parking brake C2A21, EPB mild and “service transmission” after low voltage
• No begin or MIL with U1962 information communications
• Service Improve System – No DTC

TSB correction process # 21-NA-044

If you happen to imagine your Suburban / Tahoe / Yukon 2021 has bugs or has acted in an odd means, it is doable that this software program replace fixes these points. There aren’t any VIN or manufacturing date restrictions on autos requiring the replace, so sellers can replace all Suburban / Tahoe / Yukon autos as they see match.

You have to take your automobile to a dealership for this software program replace. This can’t be accomplished “Over The Air” (OTA). This software program replace may also be lined below guarantee and it is best to request a courtesy automobile if doable.

GM-Vehicles.com strongly recommends that ALL 2021 Chevrolet Suburban / Tahoe and GMC Yukon house owners convey their automobile to a dealership for this replace.