General Motors Alabama Lemon Law Cases

General Motors is heavily represented in the Alabama market — Silverado / Tahoe / Suburban / Yukon in the pickup/SUV space, Corvette in the performance niche, Cadillac LYRIQ (TN-built) in the luxury EV niche, and Bolt (discontinued) / Hummer EV across the EV spectrum. GM has no Alabama OEM plant, but GM Spring Hill TN is the nearest plant — see Tennessee GM coverage for the home-state TN perspective on Cadillac LYRIQ, XT5/XT6, and GMC Acadia cases.

GM in the Alabama market

• No Alabama OEM plant.
• Nearest plants: GM Spring Hill TN, GM Wentzville MO, GM Fort Wayne IN.
• Strong dealer network — Chevrolet, GMC, Cadillac, Buick brands.
• Pickup leadership — Silverado is a top-selling vehicle in rural AL.
• Tahoe / Suburban strong in suburban Birmingham, Mobile, Huntsville.

Common GM defect categories

8L90 / 8L45 8-speed automatic — “torque-converter shudder”

The 8L90 / 8L45 8-speed automatic has well-documented shudder:

Symptoms

• Shudder, vibration, or “rumble” sensation during torque-converter lock-up.
• Most common between 35-65 mph during light-throttle cruise.

Affected models

• Chevy Silverado 1500 (2015+).
• Chevy Tahoe / Suburban (2015+).
• GMC Sierra 1500 (2015+).
• GMC Yukon / Yukon XL / Denali (2015+).
• Cadillac CT6, CTS, CT5 (some).
• Chevy Camaro (8-speed equipped).

Class action / TSB history

• Multiple GM TSBs addressing fluid replacement, software updates.
• Class action settlement involving the 8L90 shudder pattern.
• Pattern persists for many vehicles despite “fixed” remediation.

L87 6.2L V8 — connecting rod failures

The 6.2L L87 V8 has documented connecting-rod-related failures:

Symptoms

• Catastrophic engine failure — typically a connecting rod through the block.
• Often little or no warning.
• Premature failure (sometimes well under 50K miles).

Affected models

• Cadillac Escalade (2021-2024).
• Chevy Tahoe / Suburban (2021-2024).
• Chevy Silverado 1500 (2021-2024).
• GMC Yukon / Sierra (2021-2024).

GM response

• NHTSA-supervised recall for affected production windows.
• Engine replacement programs.
• Strong Lemon Law and ADTPA exposure for vehicles within remediation window — particularly if recall remediation hasn’t actually cured the issue.

Duramax 6.6L diesel (heavy-duty)

• DEF system crystallization — DEF freezes, derate to limp mode.
• EGR cooler failures.
• Regen issues in cold or stop-and-go driving.
• GVWR often exceeds 10,000 lbs — Alabama Lemon Law may not apply; Magnuson-Moss + UCC instead.

GM Infotainment 3 (and 4)

• Touchscreen lag and freezes.
• CarPlay / Android Auto disconnects.
• OnStar integration failures.
• Backup-camera failures — FMVSS 111 issue.
• Super Cruise issues (premium trims).

Corvette (C8 — mid-engine)

• Dual-clutch transmission issues.
• Build quality — early production teething.
• Frame / chassis complaints (rare but documented).
• Infotainment with the unique Corvette-specific layout.

Cadillac LYRIQ (EV — built at GM Spring Hill TN)

• Charging system issues.
• Infotainment issues.
• Drive unit / motor issues.
• TN home-state — see Tennessee GM coverage for the TN-based perspective.

Chevy Bolt / Bolt EUV (discontinued)

• Battery recall — large NHTSA-supervised recall on LG Chem batteries.
• Battery replacement program.
• Park-outside warning during recall period.

Hummer EV (GMC)

• Early-production issues.
• Charging system.
• Infotainment.
• Suspension issues (crab walk feature complications).

Cadillac Escalade (and IQ EV variant)

• 8L90 shudder in 8-speed.
• L87 V8 failures for affected production years.
• Air suspension issues.
• OLED infotainment (newer years) issues.
• Super Cruise issues.

Buick (Encore, Enclave, Envision)

• Transmission issues.
• Infotainment.
• Common base mechanical issues shared with Chevy / GMC platforms.

A/C in Alabama heat

• AC compressor failures common across GM vehicles in Alabama summer heat.

Recall and TSB history

• NHTSA recall search by VIN.
• GM service portal for TSBs.

Documented patterns include:

• Multi-year Takata airbag remediation.
• 8L90 shudder TSBs and class action.
• L87 V8 recall (2021-2024 production).
• Chevy Bolt battery recall.
• Various infotainment and software updates.
• Super Cruise software updates.

Procedural considerations

• BBB Auto Line is GM’s certified IDS for most divisions — mandatory under § 8-20A-3(1).
• Written notice to Chevrolet / GMC / Cadillac / Buick Customer Assistance triggers final-attempt obligation.
• Federal venue in N.D./M.D./S.D. Ala. available.

ADTPA exposure

GM cases have ADTPA exposure for:

• 8L90 “fixed” representations — when shudder persists after remediation.
• L87 V8 reliability representations — when catastrophic failures occur within warranty period.
• Recall-effectiveness representations — when remediation doesn’t cure.
• Super Cruise feature claims vs. actual.
• LYRIQ / Hummer EV range claims vs. actual.

Bottom line

GM cases in Alabama span the rural pickup market (Silverado / Sierra / 2500/3500 HD), suburban SUV market (Tahoe / Suburban / Yukon / Escalade), and growing EV market (LYRIQ TN-built, Hummer EV, discontinued Bolt). The 8L90 shudder and L87 V8 failures are flagship defect patterns. No home-state Alabama advantage, but standard Lemon Law + ADTPA + Magnuson-Moss strategy works well. Federal venue typically N.D./M.D./S.D. Ala.

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